An Arctic front is coming to Texas, but questions remain about how cold Houston will get

Good morning. As anticipated, central parts of the Houston metro area were largely spared from heavy rainfall on Monday, with 1 to 2 inches falling for most locations. But nearby locations received more, especially to the southwest. Palacios, near Matagorda Bay, recorded 7.31 inches on Monday. College Station also set a daily rainfall record with 3.4 inches. With these rains behind us, our focus now turns to cold weather later this week.

Tuesday

Beyond some patchy fog this morning, Houston has few weather concerns today. Skies will be mostly cloudy, with light northeasterly winds turning southeasterly this afternoon. Highs will generally reach the upper 60s. Lows tonight will drop into the mid-50s for most locations, and some more fog will be possible as dewpoints match air temperatures.

Wednesday will be a warm day, with mostly cloudy skies, ahead of a cold front.

Wednesday

This will be another partly to mostly cloudy day, with highs perhaps reaching 70 degrees or a tick higher. Some light, scattered showers will be possible on Wednesday afternoon, perhaps becoming a bit more widespread by around sunset. Rain chances will persist overnight as a front sweeps through, likely reaching the Houston metro area around midnight, and the coast sometime around 3 am, give or take. I think most areas probably will pick up between 0.5 and 1 inch of rain from Wednesday afternoon through Thursday morning. Temperatures will plummet from the upper 50s before the front’s arrival down to around 40 by the time you wake up on Thursday morning.

Thursday

Rains may linger into Thursday morning, but for the most part this simply will be a cold, cloudy, and blustery day. For Houston, it’s almost certainly not going to be cold enough for any wintry precipitation. But ice could be a pretty serious problem for areas of Texas north of a line from College Station to Huntsville. Please bear that in mind if you need to travel north on Thursday or Friday. For Houston, look for daytime temperatures in the low 40s on Thursday, made to feel colder by gusty northerly winds.

Temperatures will bottom out on Thursday night, although cloud cover and mixing winds could moderate things slightly. I want to emphasize that there is a fair amount of uncertainty in temperatures for Thursday night. Under a worst-case scenario, I think areas north and west of central Houston (i.e. Katy and The Woodlands) could see lows in the low 20s, with the urban core and areas closer to the coast in the mid- to upper-20s. However, I think it equally likely that inland areas only drop into the mid- to upper 20s, with central and southern Houston remaining at around 30 degrees, perhaps only seeing a light freeze. We will try to get more certainty on this in the coming days.

These temperatures will be cold enough to threaten plants, pets, and people, but I think unexposed pipes should be OK for the most part. For Houston, temperatures during this freeze should be a good 10 to 15 degrees warmer than last February’s hard freeze, so we are not looking at that kind of event.

Nevertheless, much of Texas will be very cold at the end of this week. So what of the power grid? The Electric Reliability Council Of Texas recently filed a winter weatherization readiness report, and concluded, “The Texas electric grid is more prepared for winter operations than ever before.” Let us hope so.

Forecast for minimum temperatures on Friday morning across the Cold Star State. (Weather Bell)

Friday and beyond

The good news is that we’ll see some sunshine on Friday, but it will still be quite cold. Look for highs in the low 40s, and another freezing night. Expect lows to perhaps be a couple of degrees warmer than Thursday night.

Saturday, Sunday, and Monday look mostly sunny and chilly, with highs in the upper 40s on Saturday to upper 50s by Monday. Look for a gradual warming trend into the low 60s by Wednesday or Thursday, with nights remaining in the 30s and 40s as Houston experiences a prolonged cold spell.

Heavy rain possible on Monday, with an Arctic front arriving Wednesday night

Good morning! There is a lot of weather to talk about for this week, but first I want to say a word regarding our app, which is available for Apple and Android devices. Several readers have written to note a bug in the 7-day forecasts on the home screen, and we’re aware of it. Fixing this will be part of our next update, which will also include some of your most requested features. We’ll have more to say on this soon, but I did want to take a moment to apologize for the bug.

With that said, let’s talk about today’s rains and an Arctic front coming into Houston later this week.

Monday

The high pressure system that brought our beautiful weather this weekend has now exited eastward, and in its place a low pressure system will move into the region today. Light showers will develop to the southwest of Houston this morning, and move into the city later this morning. The potential for heavy rainfall is greatest this afternoon and evening, before activity winds down around midnight. Generally I think the region will see 2 to 4 inches for areas west of Interstate 45, and 1 to 3 inches east.

NOAA rain accumulation forecast for now through Monday night. Some areas will see higher totals. (Weather Bell)

The greatest threat for heavy rainfall is likely near Matagorda Bay, and areas southwest of Houston, where higher isolated totals of 6 inches or more are possible. Due to the threat of some street flooding, we have instituted a Stage 1 flood alert for today and this evening. Note that these impacts are most likely during the evening commute. Highs, otherwise, will reach the mid- to upper-60s today, with lows in the upper 50s Monday night.

Tuesday

Congratulations. This is the one day with zero weather concerns this week. Expect highs in the low 70s with mostly cloudy skies. We may briefly see a little sunshine during the afternoon hours. Winds will be light. Overnight lows will again drop into the upper 50s.

Wednesday

This will be another warm-ish day, with highs likely reaching the mid-70s beneath cloudy skies. Some light showers will be possible during the afternoon hours, ahead of a front that will sweep through on Wednesday night, reaching Houston between midnight and sunrise on Thursday, and pushing off the coast by sunrise. Temperatures will drop sharply with this front, but most likely any rainfall accompanying it will end before temperatures get cold enough for wintry precipitation.

Thursday

Welcome to winter. Skies will be mostly cloudy on Thursday, with rains likely ending by or before noon. Your afternoon temperatures should top out at about 40 degrees, made to feel colder still by a stiff northerly breeze. The question becomes how cold it will get on Thursday night, and that is going to depend on whether skies clear somewhat (which would make things colder), and how quickly winds die down (more winds means more mixing, which would trend warmer). For now I think we’ll see mid-20s for inland areas such as Katy and The Woodlands, upper-20s for central Houston, and a light freeze right along the coast. This should be just warm enough to preclude concerns about widespread pipe damage, but the forecast at this point could still go a bit warmer or a bit colder.

Current forecast for low temperatures on Friday morning. (Weather Bell)

Friday

Friday will be cold, with partly sunny skies, and highs in the low 40s. Expect another cold night with temperatures perhaps a degree or two warmer than Thursday night.

Saturday and Sunday

The weekend looks partly sunny and chilly. Expect highs of around 50 degrees on Saturday, with a light freeze possible Saturday night, and in the mid-50s on Sunday. We can’t rule out some light rain each day, but for now I’d bet on dry conditions. A slow warming trend should continue into next week.

We’re issuing a Stage 1 flood alert for Monday, and tracking a hard freeze later this week

It is such a lovely day across the Houston region today it’s difficult to imagine unpleasant weather. But we’ve got plenty of that on tap for the week ahead, so we’re jumping in with a Sunday post to keep you in the loop.

Monday’s rains

We continue to expect that a low-pressure system will produce widespread rainfall across the Houston region on Monday, generally from the late-morning hours through around midnight. Rainfall amounts are going to vary widely with this system, as some areas pick up less than one-half inch of rain, and other locations 2 to 4 inches, if not a bit more. Because these rains have the potential to produce some nuisance street flooding, we think it’s worth instituting a Stage 1 Flood Alert. This will primarily affect areas south of Interstate 10, and west of Interstate 45.

Generally, the closer to the coast you live, and the further west of Houston, the more likely you are to see heavy rainfall. The good news is that we don’t anticipate any severe weather beyond heavy rainfall on Monday, so tornadoes or strong winds are unlikely. These rains should end over night with partly sunny skies on Tuesday.

Locations for excessive rainfall on Monday. (NOAA)

Mid-week freeze

The next event on our radar—if you thought I was going to spare you weather puns because of the Sabbath, you thought wrong—is a cold front that will arrive on Wednesday night. Some additional rain showers may well accompany this front, but I think our atmosphere will dry out before the coldest air arrives. This should preclude any wintry precipitation for the Houston metro area, but I’m not ready to entirely rule that out yet.

The bigger story will be colder air, with low temperatures likely dropping into the 20s for Houston on Thursday and Friday nights. Even Galveston Island may see a light freeze on Thursday night. These temperatures should be about 10 degrees warmer than the region experienced during the freeze last February, but it will nonetheless be quite cold. As we get closer, we’ll be able to fine tune the temperature forecast.

Current forecast low temperatures for Friday morning. (Weather Bell)

Still more significant impacts are likely for inland parts of the state this week, particularly the Dallas area. Beginning late Wednesday afternoon through Thursday, snow and ice are likely for the Metroplex. Low temperatures on Thursday night probably will get into the teens. So if your plans take you north of Houston this week, roads and more could be mess.

If you’re wondering what this means for the Texas power grid, the answer is I don’t know. We’re not going to see the cold extremes we saw in 2021, but it will still be plenty cold across the entire state.

More tomorrow.

A quiet weekend awaits Houston before busier weather arrives next week

So, if you were looking for a nice weekend, you will get your wish. The weather this weekend looks great: Sunshine, comfortable afternoons, and not too much wind. We will enter a more active weather pattern next week with a number of things to talk about, none super serious but a few you will want to be mindful of moving ahead.

Today

We have a weak cold front sneaking through this morning, which has led to some showers, primarily south of Houston, toward Wharton and Matagorda Counties. So you may get some showers down there. The rest of us will see clouds slowly clear out this morning, leading to a sunny afternoon. It will feel a little cooler today with generally mid-50s and a breeze.

Saturday & Sunday

As noted above, both days look great with sunshine and just a few clouds. We’ll warm from the 30s to around 60 degrees on Saturday, and then we’ll go from 40 or so into the mid-60s on Sunday. Just splendid.

Monday

The first hurdle for next week comes on Monday. Modeling has been in pretty good agreement on a rather vigorous little disturbance swinging through the region with a period of rain for a good chunk of the area beginning in the mid to late morning and ending sometime Monday evening. I will definitely mention the chance of thunderstorms here as well. At this point, widespread severe weather isn’t expected with this disturbance, but I think we should watch Monday for at least the chance of a few stronger storms especially south of Houston. We’ll update you Monday morning with the latest.

Rain totals could be as high as 2 to 3 inches with Monday’s disturbance. Confidence in totals is highest south of Houston, whereas north of Houston, there is still a bit of uncertainty as to whether we’ll see quite as much rain as advertised. (Pivotal Weather)

On average, I’d expect an inch or so on Monday, particularly from I-10 southward. There will likely be areas of higher amounts up to 3 inches or so, again especially to the south of Houston. Areas north of Houston may see a bit less, depending on the exact track this disturbance takes.

Outside of Monday’s rain, it will be a touch milder with morning lows around 50 or in the 50s and daytime highs in the 60s.

Tuesday & Wednesday

Behind Monday’s storm, we should calm down on Tuesday and most of Wednesday. Look for clouds, some sun, and perhaps a shower chance. We have a shot at 70 degrees on both days, and depending on the exact timing of the next front, it could push well into the 70s on Wednesday. Morning lows will generally be in the 50s. As warm, humid air starts to return, expect the Gulf fog machine to try and turn back on for the first time in awhile, so we could have some gloomy mornings with low visibility.

Late next week

Our next front is timed out to late Wednesday night or Thursday morning. Expect showers and thunderstorms as this pushes through, with another widespread rainfall possible. As Eric has noted, the air behind this front is going to pack a little punch. Expect windy and colder conditions Thursday and a decent chance at a freeze on both Friday and Saturday morning and possibly Sunday morning as well. It’s a little too early to get too specific, but at the very least, I think we should be expecting a freeze similar to what we’ve already seen this winter, with risk for temps a couple degrees colder than that.

Within the 51 European ensemble members, there is a spread of low temperatures ranging from the low-20s to mid-30s. Our current expectation would be for mid to upper-20s in Houston on Friday, Saturday, and possibly Sunday morning, but that range indicates there is still some uncertainty. (Weather Bell)

If you look at the various ensemble model guidance, there is a range of morning lows from the low-20s to mid-30s next weekend, meaning there’s still a lot of uncertainty here on specifics. But I think it’s safe to plan on mid to upper-20s for a few mornings for now, and we’ll adjust up or down next week as needed. The good news is that daytime highs look to be generally in the 40s, if not low-50s, so we will warm well above freezing each day. We will keep you posted on this, but just to be clear, while cold, this doesn’t appear to be a repeat of last February.