In brief: Good morning on this fine Christmas Day. Santa sure brought the thunder last night, didn’t he? We are interrupting your holiday with a short update to note that another round of storms is possible Thursday as we see a similar setup: Lots of moisture in the atmosphere and a weak frontal boundary.
Christmas Day
The storms have cleared our area to the east, and we’ll see a calm day today. Look for high temperatures around 70 degrees, with partly to mostly cloudy skies, and possibly a few light, lingering showers. Tonight will be mild, with lows in the lower 60s. The bottom line is that, soggy soils aside, any activities today and this evening should be fine.
Severe weather outlook for Thursday and Thursday night. (NOAA)
Thursday
As atmospheric moisture levels rise, we’ll see the possibility of some fog on Thursday morning to go along with some fairly humid conditions. The problem is that we’re going to see another disturbance propagate down from the northwest during the daytime. What this likely means is that the Houston region (particularly coastal areas, maybe?) will see the potential for some scattered showers and thunderstorms.
Then, later on Thursday afternoon or early evening, we’ll see a line of storms move down from the northwest to southeast. I’m not convinced these storms will be as organized as what we saw early on Christmas morning, but there’s the potential for some damaging winds, more hail, and briefly heavy rainfall. They might also strike during rush hour. The storms should clear the area before midnight.
Afterward, Friday and the weekend looks pretty pleasant. We’ll have all the details on that in our forecast on Thursday morning. Until that time, have a wonderful holiday!
In brief: Showers and a few thunderstorms return to the forecast today in Houston. A stronger line of storms will move through the area tonight, likely with lightning in the middle of the night. So Christmas morning could start with a bang. Most of the holiday should be fine, weather-wise. Expect mild temperatures for the remainder of the year.
Clouds streets above Houston streets
Tory Gattis sent in the following photos yesterday, which he observed over Midtown in Houston. These are fairly low lying in the sky, so they’re stratocumulus clouds. The straight-line nature of the clouds is colloquially known as cloud streets, and more formally as horizontal convective rolls. The precise reason why they form is actually not particularly well understood, but they sure are pretty to look at. We will see more clouds today, but they are likely to be of a more ominous nature.
Today, tonight, and Christmas
Houston’s weather will turn more dynamic this morning as an upper-level disturbance approaches the area. Scattered showers and thunderstorms will be possible today, with the potential for some slightly more organized activity this evening. High temperatures today will reach the mid-70s, with mostly cloudy skies. Winds will be light, from the southeast. All in all, if you can dodge a few showers and storms, conditions today should not be too disruptive.
However the story could be different tonight, as an organized line of showers and thunderstorms marches down into Houston from the northwest. I expect this line of storms, likely with a fair bit of lightning, to reach areas north and west of Houston (i.e. Katy and The Woodlands) by just before or around midnight, give or take. It should then push through the Houston metro area between midnight and sunrise on Christmas Day. Some of our latest modeling indicates this may be a rather noisy passage, with briefly heavy rainfall and lots of lightning. If Santa’s coming and going doesn’t wake the dogs, these storms probably will. Damaging winds are possible, as well as a slight chance of hail. Most areas should pick up 1 to 2 inches of rain, with some higher bullseyes.
A simulated radar image shows storms moving into Houston at 2 am CT on Christmas morning. (Weather Bell)
The good news is that the storms should be off the coast and off to the east of the Houston metro area by fairly early on Christmas Day morning. The storms will drag a weak front into the area, so expect high temperatures in the lower 70s on Christmas, with slightly drier air. Some additional light, scattered showers will be possible with partly to mostly cloudy skies, however I think the rain will be over for most. Lows on Wednesday night will drop into the upper 50s to 60 degrees.
Thursday and Friday
The front won’t last long, and with a soggy atmosphere in place expect warm days in the mid-70s to end the holiday week. Skies will be partly to mostly cloudy, and both of these days and nights will have a decent chance of rainfall. These showers should be less explosive than those expected on Christmas morning, and accumulations far less.
Saturday and Sunday
We should see more sunshine this weekend, although we can’t rule out a few showers on Saturday morning ahead of another weak front. Saturday should be nice, with slightly drier air, and nighttime temperatures falling into the 50s. Sunday should also be sunny, with moderately drier air, and highs in the mid-70s. Rain chances are near zero.
Next week
We probably will see the return of a warmer, more southerly flow early next week. We’ll likely also see a slight chance of showers at well. At some point, perhaps on New Year’s Eve, or New Year’s Day, a much stronger front will arrive. This should bring us seasonal weather for 2025, starting the year off on a winter-like note. Details to come.
Houston’s temperatures will turn more seasonal in early 2025. (Pivotal Weather)
Merry Christmas to all!
Please do be aware of the potential for storms tonight and early tomorrow. We’ll be keeping an eye on things, and if they look more dramatic than your typical Houston thunderstorms, we will update the site later today. However, if the forecast stays on track we probably will take Christmas Day off from posting. So please have a wonderful day.
In brief: After a cold, winter-like weekend Houston will now see mild weather for the rest of the year. We’ll also see some rainy days, although at this point Christmas Day itself should be mostly rain free. The overall pattern looks to remain fairly warm until the start of next year, at which point conditions will probably turn significantly colder again.
End of year appreciation
As we near the end of this year, I want to thank everyone who contributes to Space City Weather. I must start with Matt, who has been with me almost since the beginning of the website, and who is the most reliable partner one could ask for. As Space City Weather has grown, Lee has kept us online for the better part of a decade—our server would have drowned during Hurricane Harvey had it not been for him. Dwight is a constant source of advice and support, and ensures we are current on social media. Hussain developed our app almost singlehandedly, and keeps it updated amid constant changes in mobile technology.
Elizabeth, Pat, Megan, and the team at Reliant have backed our site for more than seven years, living up to their name as reliable partners who have enabled us to grow and serve the entire community. Tory and Lauren at Pierpont have been so friendly and helpful (and patient) in promoting the site and supporting events. And finally, dear readers, we have you. Our very most important asset is the trust you hold for our work here. Every morning Matt and I wake up trying to make sure we build that trust, rather than lose it, which is not always the easiest thing to do when predicting the future. So during this holiday season, thank you for believing in us. Merry Christmas, Happy Hanukkah, and Happy Holidays from us, to you!
Monday
After lows generally in the 30s over the weekend, temperatures at sunrise on Monday are in the low 50s for most of the Houston metro area. And this will probably be our coldest morning this week as high pressure has departed the area and we experience a more southerly flow. Rain chances should hold off today, but we’ll see the return of some clouds as winds come from the southeast, perhaps gusting up to 20 mph this afternoon. Look for highs in the mid-70s, with a mild night and lows generally in the lower 60s.
Severe weather outlook for Tuesday. (NOAA)
Tuesday
Christmas Eve will be warmish, with highs in the mid-70s and mostly cloudy skies. As moisture levels rise in the atmosphere, a disturbance will bring a healthy chance of rain. Starting in the morning, our weather could turn a little bit gnarly, with enough instability to support some thunderstorms, possibly small hail, and heavy rainfall. Most areas probably will see a few tenths of an inch of rain, but some inland locations may pick up 1 inch or more. Healthy rain chances continue during the overnight hours.
Christmas Day
The stormy weather should move off to the east overnight, although we may see some lingering fog on Christmas morning. The day itself should be nice, with partly sunny skies and high temperatures in the low- to mid-70s. Winds should be light. Lows on Christmas night will fall to around 60 degrees in Houston, with cooler conditions for areas further inland.
Thursday, Friday, and Saturday
This period will be warm for late December, with high temperatures in the upper 70s and plenty of humidity. Each day will see rain chances on the order of 30 to 50 percent, and perhaps even higher chances on Thursday and Friday nights. All in all, I expect most of Houston to pick up 1 to 2 inches of rain during this period, with higher isolated amounts. The days won’t be a total washout, but if you have post-holiday gatherings you may need to dodge some showers. If there’s a silver lining, it’s that we do need the rain.
NOAA rain accumulation forecast for now though Saturday night. (Weather Bell)
Sunday and beyond
A weak front arrives on Saturday at some point, and this should clear us out. Sunday should be sunny, and cooler, with nights in the 50s. By around New Year’s Eve, or so, a stronger front will arrive to really cool us down for the new year. It’s still too early to have details for the holiday, but the first week of 2025 should be significantly colder, including the potential for a freeze in parts of Houston. We shall see.
In brief: Houston will experience three more days of cooler weather before a warmer pattern sets in, and likely will prevail for nearly all of the remainder of 2024. We’re still anticipating mild conditions on Christmas Day, with the possibility of some showers on Christmas Eve.
You’ve got to go all the way down to the Rio Grande Valley to find mild conditions this morning. (Weather Bell)
Baby, it’s cold outside
For a lot of people, myself included, holiday weather should feel chilly outside. Well, as you’ll see in the forecast below, Christmas Day in Houston is not going to feel like the holidays in the sense that it will not be cold. Conditions will feel rather mild, instead. However we do have some decidedly chilly weather in store for now through Sunday, so if that’s your thing, make plans for some outdoor activities, sweaters, and hot cocoa over the next few days. Speaking of holiday activities outside, a reminder that our longtime partner, Reliant, is known for lighting up the holidays and is bringing you several family fun experiences to check out!
Additionally, Galaxy Lights, presented by Reliant at Space Center Houston runs through January 5 and with Reliant’s sponsorship of Space City Weather, you can get $5 off your tickets if you use code: GLSCW24!
Friday
Temperatures have generally fallen into the upper 40s this morning, with light winds from the north. Today will be pleasant, with high temperatures reaching the upper 60s this afternoon and plenty of sunshine. We’ll see an uptick in winds this afternoon as a reinforcing cold front arrives from the north, so if you notice some gusts that’s what’s coming in. The front will bring drier air in, and this will help temperatures drop to about 40 degrees in Houston tonight. Conditions will be even colder for far inland areas, so if you’re going to be out and about on Saturday morning bring a jacket.
Saturday
A cold and sunny day. High temperatures may struggle to climb beyond the upper 50s for some locations, but with light winds and sunshine it should not feel all that cold. Saturday night will be chilly again, with lows in the lower 40s in Houston—so a bit warmer than Friday night. But not much.
Sunday
Another sunny day. However, with high pressure departing to the east we’ll start to see winds coming more from the southeast. So daytime temperatures will probably reach the upper 60s, and then Sunday night will be warmer, in the 50s. Some clouds may start to float in as well.
Current forecast for high temperatures on Christmas Day. (Weather Bell)
Monday, Tuesday, and Wednesday
The period leading toward Christmas Day will bring a warming trend, with highs generally in the lower 70s. With a slightly more unsettled pattern we should see some decent rain chances on Christmas Eve and the night before the holiday. However at this point Christmas Day will probably see partly sunny skies and only a low-end chance for some scattered showers. Anyway, it won’t be too hot, and it won’t be too cold.
The last week of the year should be much warmer than normal. (Pivotal Weather)
Rest of next week
The final week of the year looks to be fairly warm for late December. Generally we probably can expect highs in the 70s and lows in the 50s to about 60 degrees. Some decent rain chances will be in the cards, but I don’t anticipate anything that might bring flooding or that kind of thing. Some sort of front probably will come pushing through right before the end of the year, but whether that’s New Year’s Eve or New Year’s Day or something else is hard to say.
