A complicated forecast for the holiday weekend ahead—Santa may want to bring an umbrella

Good morning. Houston will see cool temperatures and mostly sunny skies to start this week, but then we’ll see a distinct warming trend for the second half of the week and the weekend. As moisture levels rise the forecast will bring increasing rain chances. As for what all this means for Christmas Day, well, it’s going to depend on the timing of the next front. Things could get a bit messy if the front moves through next Monday, on Christmas Day itself.

Monday

We’re starting out chilly, and generally in the 40s, this morning. It’s going to be a bright and sunny day, with highs in the upper 60s to nearly 70 degrees. Winds will be mostly light, from the north, at 5 to 10 mph. Really, it should be a very fine day for any outdoor activities. We’ll see one more cold night tonight, with temperatures dropping into the low 40s for much of the region tonight, with a few outlying areas possibly touching the upper 30s.

Low temperature forecast for Tuesday morning. (Weather Bell)

Tuesday

With a bit of a reinforcing shot of cooler air on Monday night, temperatures on Tuesday should trend a bit cooler. We’re looking at highs, perhaps, in the low 60s with partly to mostly sunny skies. However, changes will be afoot in the atmosphere as the high pressure that has brought us clear and colder weather pushes off to the east. This will initially result in an easterly flow at the surface, and allow for temperatures to fall to around 50 degrees on Tuesday night.

Wednesday and Thursday

These will be partly sunny days with high temperatures of around 70 degrees. The air will feel a bit more humid as an easterly to southeasterly flow continues. Winds may at times gust to around 20 mph. Nights will be more mild, generally falling to about 60 degrees.

Friday, Saturday, and Sunday

The weather looks pretty meh for the weekend ahead of Christmas Day. We’re talking highs in the low 70s, cloudy skies, fairly humid air, and warm nights only falling to around 60 degrees. Oh, and the rain chances. As atmospheric moisture levels ramp up we’ll see a healthy chance of showers and thunderstorms throughout the three day period, on and off. Much of the area could pick up 1 to 2 inches of rain during the time from Friday through Sunday, but that forecast is written in pencil for now.

NOAA rain accumulation forecast for now through Sunday night. (Weather Bell)

Christmas Day and beyond

At some point the showers will end, as a cold front moves through and brings drier air into the region. But the timing of this front is still far from certain. It could be on the morning of Christmas Day. It could be morning on the day after Christmas. I don’t know, and I don’t really feel particularly confident at this time. For now I’m going to predict highs in the 60s on Christmas Day with a healthy chance of showers. There may even be some thunderstorms if the frontal passage is a messy one.

I know you’d like to have some more clarity than that. This forecast is a real lump of coal in your stocking. But hey, Santa Claus is the miracle worker not me. After the front moves through, next week does look quite a bit colder, with highs in the 50s or possibly 60s, and nights perhaps in the 30s and 40s. We’ll see.

Last call for holiday lights

If you like to enjoy festive holiday activities while it feels like a winter wonderland in Texas, the next few days are a good time to plan those visits before we experience a warmer period around Christmas Day. Our longtime partner, Reliant, is here to help Houstonians join in the holiday spirit with two fun attractions!

Galaxy Lights, presented by Reliant (runs through January 7)

What better way to get into the spirit in Space City than with Galaxy Lights, presented by Reliant? The only space-themed light show around at Space Center Houston is one of the most technologically advanced light displays in the state, providing Houstonians with an interactive, out-of-this-world experience! Visitors can experience a 200-foot LED light tunnel, two high-tech kinetic light shows, massive models of each planet, and a showing of the original film “Holidays in Space.” Learn more and purchase tickets here.

Radiant Nature, presented by Reliant (runs through February 25)

New to the Houston Botanic Garden this year, a majestic light display celebrates multicultural holiday festivities during the winter season. Unlike most other holiday light displays, Radiant Nature, presented by Reliant, is a stunning visual experience that can be enjoyed night or day. Visitors will experience a traditional Chinese lantern festival with more than 50 larger-than-life installations, including a 200-foot-long illuminated dragon. You have plenty of time to visit as the exhibit will stay open through the Lunar New Year in February. Learn more and purchase tickets here.

Learn more about these events and, if you’re traveling, other holiday events Reliant supports across the state here: https://www.reliant.com/holidays

Expect widespread showers Friday night ahead of a cooler weekend, with lots of sunshine by Sunday

Good morning. Houston faces the prospect of a wet Friday night before cooler weather prevails this weekend and the first half of next week. And although the modeling remains far from unanimous, the most likely outcome for the Christmas holiday in Houston is mild weather with a fairly decent chance of rainfall.

Thursday

Today will be a fairly mild December day, high temperatures in the mid- to upper-60s. We may briefly see some sunshine this afternoon before clouds build again tonight. Winds will blow from the east, with some gusts up to 15 or 20 mph. That will be piling on moisture into the atmosphere that will support rain showers later on Friday. Low temperatures on Thursday night will only drop into the mid-50s for most of Houston, with slightly cooler conditions further inland.

High temperatures on Friday will be fairly warm ahead of the next front. (Weather Bell)

Friday

The day will start cloudy, and we’ll probably see high temperatures push into the upper 60s despite the clouds. Some light rain showers will be possible during the morning hours, but the most likely scenario is that any more organized showers won’t push into the Houston metro area until the late afternoon or evening hours. This system will move from west to east ahead of a surface front. Overall rain accumulations for most areas on Friday night will be quite manageable, with 0.5 to 1.5 inches of precipitation. However, there is definitely the potential for some heavy rainfall for isolated areas, and this may briefly cause some street flooding.

Saturday

The front should move through by around midnight or shortly after, and it now appears that this should bring a fairly swift end to our rain chances. We can’t rule out of a few lingering showers on Saturday morning, but I expect they’ll be rather scattered. Look for highs of about 60 degrees, clearing skies, and much drier air as winds blow from the north at about 15 mph, and gust to 25 mph or higher during the daytime. Lows on Saturday night will drop into the 40s.

Sunday

This should be a sunny day, with highs in the low- to mid-60s and plenty of dry air. Winds remain out of the north, but should be slackening. Lows on Sunday night will be chilly, dropping into the low 40s.

Monday morning should be the coldest of the week. (Weather Bell)

Next week

So what’s on tap for the final week before the Christmas holiday? The first half of the work week should generally be sunny and cool, with highs in the 60s and lows in the 40s. Then we’re going to see a moderate warming trend heading into the weekend, with highs perhaps in the upper 60s and lows in the 50s. After that the forecast turns fuzzy, but it does seem as though we’re going to see the return of some rain chances by the weekend, quite possibly persisting through Christmas Eve and Day. At some point the next front will come through, but whether this is just before, on, or just after Christmas Day is simply unknowable at this time.

Cloudy tonight for the Geminid meteor shower, Friday night rainfall comes into better focus

Good morning. The Geminid meteor shower—typically one of the best of the year—peaks tonight into Thursday morning. Unfortunately, we’re going to be mostly clouded in in the greater Houston area. The nearest chance for clear skies liest to the west of areas such as Sealy, or northwest of College Station tonight, and even that appears to be far from a sure thing. There is the possibility for some clearer skies on Thursday evening, although the meteor shower will be less prominent by then. Sorry, stargazers.

East Texas is holding on to colder weather this morning, but the rest of the state is warming. (Weather Bell)

Wednesday

We’re seeing some light showers to the southwest of the region this morning, in the Port Lavaca and Victoria area. Some of these rains may work their way into the Houston metro area later this morning for areas to the west of Interstate 45. Any accumulations should be slight. Otherwise it will be, as mentioned above, a mostly cloudy day and night. Highs will reach the mid-60s, with overnight temperatures dropping to around 50 degrees in Houston. Winds will be about 10 mph, out of the east.

Thursday

We’ll probably see a little more sunshine on Thursday, and that should nudge highs into the mid- to upper-60s across the metro area. Winds will also be more prominent out of the east, gusting up to 20 mph, and increasing atmospheric moisture levels ahead of increasing rain chances on Friday. Lows on Thursday night will drop into the mid-50s.

Friday

Friday will start out cloudy, and I think rain chances are going to hold off until at least noon. However, after that time a broad upper-level storm system will move in, and we’ll see showers and thunderstorms marching into the metro area from the west. This activity will likely peak from late afternoon through early Saturday morning, with showers and some heavier downpours. I don’t think we’re looking at anything too extreme, but most of the area should pick up 0.5 to 2 inches of rainfall. Highs on Friday will top out in the mid-60s.

Saturday

Lows on Saturday morning will drop into the 50s, and we could see some additional light showers lingering into the late morning hours. Mostly cloudy skies should limit highs in the upper 50s, and winds will be prominent out of the north at 15 mph with gusts up to 25 mph. So although the rains should be ending by Saturday afternoon, it’s still going to be breezy and cool. Lows on Saturday night will drop into the 40s with mostly cloudy skies.

NOAA rainfall accumulation forecast for now through Saturday night. (Weather Bell)

Sunday

We should see clearing skies on Sunday, with highs of around 60 degrees. A persistent northerly breeze will remain, with gusts continuing at 15 to 20 mph. Lows on Sunday night will again drop into the 40s as winds finally start to slacken some.

Next week and Christmas outlook

The first half of next week should see continued chilly weather, with highs in the 60s and nights generally in the 40s. By Wednesday we should start to warm some, with highs approaching 70 degrees toward next weekend. I’d say the forecast for Christmas Eve the Christmas Day remains rather unsettled. We could see some kind of a front coming through the area next weekend (Christmas is on a Monday) and that may bring some precipitation and colder air for the holiday. Or not. There’s just not enough consistency in the forecast models, or overall pattern, to have any confidence. For now my guess would be highs in the 60s on Christmas Day with at least a decent chance of rain. But there’s a long way to go.

Calm for a few more days before a rainy Friday night ushers in a cooler weekend

Good morning. Houston’s weather will remain temperate for the remainder of the work week, with high temperatures generally in the 60s. Later this week an upper-level low pressure system will bring a healthy chance of rain into the area, especially on Friday night, before we clear out and cool down later on Saturday. Looking way into the future, I’m still seeing the likelihood of mild weather for Christmas—but at 13 days out take that forecast with a pinch of eggnog.

Tuesday

Today will be sunny, with light easterly winds. Highs will generally push into the upper 60s today, and overnight lows will only drop to around 50 degrees. For December, this is definitely mild weather.

Wednesday and Thursday

As atmospheric moisture levels increase a bit, we’ll see at least some partly cloudy skies. This should help to moderate temperatures a bit, holding highs in the mid-60s. We’ll continue to see an easterly flow with winds of about 10 mph and slightly higher gusts. Nights will be mild, in the low 50s generally.

NOAA rainfall accumulation forecast for now through Saturday. (Weather Bell)

Friday

This should be a mostly cloudy day, with high temperatures in the low- to mid-60s. Rain chances won’t be zero during the daytime, but they should be fairly low before the afternoon hours. Then, especially from Friday evening through Saturday morning, we’ll see widespread showers ahead of, and along with the next front. I don’t think we’re looking at any appreciable flooding, as most areas should pick up 1 to 2 inches of rainfall. However, this rain definitely has the potential to put a damper on any holiday activities you have planned from the period of Friday afternoon through Saturday morning.

Saturday

Temperatures will fall to around 50 degrees on Saturday morning, and will struggle to climb out of the 50s during the afternoon hours as northerly winds blow into the area, bringing cooler and drier air. We may see a bit of sunshine on Saturday afternoon as skies start to clear, and any lingering showers move away. Lows on Saturday night will drop into the mid-40s.

Sunday

This will be a mostly sunny day with a high temperature of around 60 degrees. Winds out of the north, gusting to perhaps 15 to 20 mph, will keep things feeling on the chilly side. Sunday night looks rather chilly, with lows in Houston dropping to around 40 degrees.

It’s beginning to look a lot like a warm Christmas, everywhere you go. (Pivotal Weather)

Next week through the Christmas holiday

The early part of next week will remain on the chilly side, with highs generally in the low 60s and lows in the 40s. But we should see a warming trend toward next weekend, with highs perhaps reaching 70 degrees by Friday or so. And after that? As of now there is no appreciable signal for cooler air, so at this point I expect we’ll see a warmer than normal Christmas, with highs perhaps around 70 degrees. We shall see.

Blowing up a tornado

Last weekend saw a tragic outbreak of tornadoes in Tennessee that killed six people and injured more than 80. Some interesting video has emerged of one of these tornadoes striking a power station, and this appears to disrupt the the circulation of the tornado. This has led to some speculation on whether it’s possible the “blow up” a tornado. Over on The Eyewall, Matt dives into this phenomenon.