Eric Berger

Overall it’s been a cold start to 2021 in Houston. Through the year’s first 17 days, the average temperature is running about 3 degrees below normal. And at the city’s official station at Bush Intercontinental Airport, since January 6, the overnight low has never been warmer than 42 degrees. Most nights have been in the 30s. But now, that’s about to change. It’s possible that much of Houston will not see lows below the 50s until near the end of January. “Winter” isn’t over, but the next stretch will definitely be warmer than normal. We’ll be trading clear and cool for cloudy and more muggy.

Monday

Houston will enjoy one more sunny day for the Martin Luther King Jr. holiday. But as high pressure departs the area, you may notice winds becoming more prominent from the south this afternoon. With partly to mostly sunny skies this afternoon, high temperatures will likely get near 70 degrees for much of the area. However, unlike the last 10 nights or so, temperatures will not drop significantly after sunset. Rather, with the southerly flow and increasing clouds, low temperatures tonight will probably only drop to around 60 degrees for most.

Tuesday and Wednesday

The mid-week weather will be determined by the progression of a cold front that seems most likely to stall out just to the northwest of the Houston region. For areas not reached by the front, which for now I will include pretty much all of the metro region, the effect of this will be a continuance of warm days, with highs around 70 degrees, and lows in the upper 50s to 60 degrees. We should see mostly cloudy skies and rain chances somewhere in the neighborhood of 30 percent. The better rain chances will fall closer to the front, with areas like College Station possibly seeing one-half inch of rain or so by Wednesday.

Thursday and Friday

The forecast gets less certain later in the week, as the frontal boundary may move around some. For now, I’d expect more mostly cloudy days in Houston, with low- to moderate rain chances. Overall accumulations for this week should be less than one-half inch for nearly all of the region—although northern areas, think Walker County, may see a bit more. Daytime highs will be in the 70s, with generally warm nights.

Saturday and Sunday

Neither of the weekend days is a clear winner, in terms of weather. Rain chances look low for Saturday, but non-zero. Sunday may be a bit higher. Either way, expect highs around 70 degrees, with lows in the upper 50s to low 60s. Skies will likely remain partly to mostly cloudy. A stronger front may finally push through the region next Monday or Tuesday to bring colder, clear weather back into Houston.

Good morning. Some readers reported seeing a bit of freezing precipitation on Tuesday. This was due to an upper level disturbance that moved in rapidly from the west. Because the atmosphere was very dry, it was not expected that this precipitation would make it all the way to the ground, but some of it did. What you saw, in most cases, was graupel. What the heck is graupel? It is similar to, but distinct from sleet. Here’s a graphic that shows how it forms in the atmosphere. Essentially, supercooled water droplets form on falling snowflakes in a thin layer of warmer atmosphere.

Wednesday

We’re done with the wintry mix and precipitation chances for now. After a cold start, with temperatures dropping into the 30s across much of the area except for the coast, Houston should warm nicely today. Under sunny skies, we expect highs to reach about 60 degrees. Winds will be light, out of the west to southwest. Low temperatures tonight should reach about 40 degrees in the city of Houston. For the record, I’m choosing to run the Houston virtual marathon early on Thursday morning, which may give you an idea of my preferred weather conditions for long runs. In any case, Matt will be covering things on Thursday for Space City Weather as I’ll be knackered.

Thursday

After another chilly start, this will be the warmest day of the week. Look for highs to reach the upper 60s to possibly 70 degrees for some areas, with mostly sunny skies. Just as things are warming up, a cold front will push through on Thursday evening, bringing a wind shift from the north. The atmosphere will be dry enough that we don’t envision any precipitation with the front. Lows will probably drop down to around 40 degrees.

Friday

In the wake of the front, Friday will be breezy and cool. Winds out of the north will blow at about 10 to 15 mph. Look for highs in the upper 50s to 60 degrees, with mostly sunny skies. Winds will die down during the afternoon or evening hours.

Saturday

The first half of the weekend looks splendid. The day with start out in the upper 30s to 40 degrees, and with mostly sunny skies highs should reach into the low 60s.

Sunday

On Sunday we can’t rule out the possibility of some rain showers due to some atmospheric instability. However, I think chances, on the whole, are fairly low—likely 20 percent or less. Skies otherwise should be partly sunny, with highs near 60 degrees.

Next week

For Monday—M.L.K. Day—we should see the return of mostly sunny skies and highs in the low 60s. The forecast turns a bit more sour on Tuesday and Wednesday, as it looks like several ingredients will come together to bring healthy rain chances. It’s too early to have confidence in totals, but a general expectation for now is 0.5 to 1.0 inch of rain.

Good morning! We’re getting past the coldest weather of the week this morning, but it’s not exactly going to warm up dramatically any time soon. Looking ahead for the next 10 to 14 days, much of the region may not see highs above the mid-60s as Houston goes through what is climatologically the coldest time of the year.

Tuesday

A light freeze has fallen across much of the area this morning, although the urban core of Houston appears likely to remain at or just above freezing. Yesterday was quite cold. My personal weather station recorded highs briefly reaching 45 degrees during the afternoon. Today will be slightly warmer, with partly sunny skies allowing for temperatures to reach around 50 degrees. Winds will be light, out of the north at about 5 mph. Lows tonight should be about 5 degrees warmer than Monday night.

Wednesday and Thursday

High pressure will keep conditions on the sunny side for the middle of the week. Highs on Wednesday should reach about 60 degrees, and then Thursday looks to be the warmest day of the week as highs reach into the mid- or possibly upper-60s. Meanwhile, nights should see temperatures drop to around 40 degrees.

Friday and Saturday

A reinforcing front will arrive Thursday night. Since our atmosphere will be sufficiently dry, we likely won’t see any rain with this front. However, it will keep things on the cooler side, driving high temperatures back to around 60 degrees, with sunny skies on both Friday and Saturday.

Sunday and beyond

Sunday morning will start out cold, likely in the low 40s. But after this the models begin to diverge in how they handle an upper-level feature in the atmosphere that could potentially spark some rainfall. We have a couple of unanswered questions at this point: How close will this trough get to Houston, and how moist will the atmosphere be by Sunday? The bottom line is that after several sunny days, we could see the return of some clouds Sunday, and possibly some light rain showers later in the day.

By Monday, M.L.K. Day, we hope to see mostly sunny skies. However, next Tuesday and Wednesday may also generate some scattered to widespread showers across the region. The bottom line is that we’re pretty confident in the forecast through this Saturday, and the after that the picture becomes a bit more fuzzy.

Good morning! Although some parts of the Houston area saw flakes or sleet on Sunday, the real snowfall action remained to the north and west of the Houston metro area. Bryan-College Station saw a record 4.5 inches, and some nearby areas saw as much as 6 inches. For the rest of us closer to the coast, it was just a cold rain, with an average of 1 inch falling during what was a very chilly day. We’ll continue to see cold weather for much of the rest of this week, which falls during the dead of winter.

Monday

While winds have slackened for inland areas this morning, it remains breezy along the coast with gusts above 20 mph. Temperatures have bottomed out in the low 30s across much of the region and with mostly cloudy skies, high temperatures today probably won’t rise above the mid-40s. Winds will remain out of the north today, at 5 to 10 mph. Skies may break apart a little bit later tonight, but with partly to mostly cloudy skies providing a little bit of insulation most of the city should remain near or just above freezing. Outlying areas will see a freeze.

Tuesday, Wednesday, and Thursday

High pressure should more or less keep conditions on the mostly sunny side this week, and after a very cold Monday night a slow warming trend will begin on Tuesday. Look for highs in the low 50s on Tuesday, headed toward the upper 60s by Thursday. Nighttime temperatures, too, should warm from the low- to mid-30s on Tuesday night to mid-40s by Thursday night. All in all this will be a cold, very winter-like week for Houston.

The weekend and beyond

So what does the weekend hold? A cold front appears to be on track to cross the Houston area on Thursday night, or so. Right now this most likely will be a dry passage, with no rain, and bring more clear and cool weather for the weekend. We can probably expect highs in the neighborhood of 60 degrees, with lows down around to around 40 to 45 degrees.

Some clouds may begin to build later on Sunday—at about the same time our confidence in the forecast begins to decrease. Next week looks warmer, with more days in the 60s, and with more clouds. After our soaking and near miss with wintry precipitation this past Sunday, our next real chance for precipitation may not come for awhile. We don’t really need any more rain, so can anyone complain?