Eric Berger

Temperatures have generally fallen into the low-50s across much of Houston this morning, with plenty of dry air. Brisk northerly winds bringing in more dry and cool air today will set the stage for the region’s coldest night in at least six months, and maybe seven. The forecast low at Bush Intercontinental Airport for Wednesday morning is 43 degrees. The last time it got that cold here was:

• April 9: 44 degrees
• March 25: 43 degrees
• March 13: 32 degrees

So we are guaranteed to have our coldest night since at least April 9 tonight, and there’s a good chance it will be our coldest night since late March or even earlier. There is no chance, of course, that we’re going to see freezing temperatures tonight anywhere near the Houston metro area.

Tuesday

It will be slow to warm today, with winds out of the north at 10 to 15 mph providing a chilly breeze all day. Skies will be sunny, with highs generally in the upper 60s. As the sun sets tonight, temperatures will drop accordingly. Most of the metro area will be in the 40s, with the immediate coast in the low 50s, and some far inland areas north and east of Houston dropping into the upper 30s.

Wednesday

A day a lot like Tuesday, albeit with slightly lower winds shifting to come out of the northeast. Lows on Wednesday night should be a degree or three warmer than Tuesday night.

Thursday and Friday

As winds shift to come from a more southerly direction, we’ll see a warming trend with sunny skies and highs in the low 80s. Overnight temperatures may drop into the 50s on Thursday night, but by Friday night they’ll probably remain in the low 60s.

Saturday and Sunday

The weekend looks sunny and warm, with highs in the mid-80s, and nights in the 60s. While humidity returns, I think dewpoints will be under control enough such that it won’t be summer-sticky out there.

Next week

There is a fair amount of uncertainty about our weather next week. By late Sunday or Monday it’s possible that an atmospheric disturbance could spark some showers, or we could continue to see mostly sunny skies and warm weather. Then, by the middle of next week, there is a fair amount of model support for a strong-ish cold front to move in, with some pretty decent rain chances. But that is far enough into the future for our confidence to be fairly low. So … stay tuned. Maybe we’ll have a little bit more clarity by tomorrow.

I’m not going to lie: for mid-October this weekend’s temperatures and humidity felt pretty gross outside. I know there are some people living here who love summer, and can’t get enough. God bless you. But y’all have had more than five months now. And after a high of 91 degrees on Saturday, and 92 on Sunday, it’s time for a change. Fortunately that is just what is coming with today’s front. In fact, a lot of the region in the 90s this week will be in the 40s (or possibly even upper 30s) by Wednesday morning.

Monday

The front has slogged to the coast already, but it will take some time for drier and cooler air to work its way down into Houston. Accordingly we’re seeing shower activity this morning across much of the northern half of the region, and this should shift closer to the coast later today. Overall rain chances are about 50 percent, with accumulations for those areas that do see rain on the order of one-quarter to one-half inch. High temperatures should remain in the 70s today, with winds out of north and northeast. Low temperatures tonight will drop into the 50s for most of the area, away from the coast.

Tuesday

This will be a chilly day, with highs in the upper 60s to 70 degrees, to go along with mostly sunny skies. Houston will not have had a day as cool as this since March, about seven months ago. Breezy conditions out of the north, with gusts up to 20 mph, will add to the chill. This influx of colder and drier air will set the stage for a cold night, with lows likely in the low- to mid-40s for much of the metro area, and even chillier still further inland. Even Galveston Island should get down into the 50s.

Wednesday

This will be another sunny and cool day, with a high near 70 degrees. Lows Wednesday night will be chilly again, but likely a few degrees warmer than Tuesday night.

Thursday and Friday

A warming trend begins toward the end of the work week as high pressure shifts to our east, and the onshore flow returns. Look for highs in the low 80s both days to go along with sunny skies.

Saturday, Sunday, and beyond

This weekend should see highs in the mid-80s with partly to mostly sunny skies. There is some question about whether another front will push through early next week, bringing some rainfall with it. Quite frankly there is broad disagreement in the models. For now my expectation would be a continuation of warmish weather, in the 80s and low-ish rain chances. We’ll see.

A few readers may have heard some thunderstorms as a weak cool front moved down into the Houston region this morning. These storms are fairly isolated, and should move southward as the front pushes off the coast after sunrise, later this morning. This will bring a brief reprieve from Wednesday’s heat and humidity, but for truly fall-like conditions we’ll need to wait for a stronger front to arrive on Monday. This one should bring glorious weather, as well as a nice dose of much-needed rainfall with it.

Thursday

High temperatures today will reach about 90 degrees, and it will take some time for the drier air to work into the region following the frontal passage. With the front stalling near the coast, high resolution models are showing the potential for some additional showers and thunderstorms to fire up this afternoon and early evening over Houston. I expect them to be fairly scattered, however. As drier air moves in, expect lows tonight to drop into the 60s for Houston, and showers to end.

Friday

Don’t blink, otherwise you’re going to miss the front’s impact on our humidity. That’s because dewpoints are expected to only briefly bottom out on Friday morning before humidity levels start to rise again. Friday should see mostly sunny skies, with highs in the upper 80s and light winds turning southeast. As this more moist flow resumes, lows on Friday night should be a few degrees warmer than Thursday night.

Saturday

The first half of the weekend looks sunny and warm, with high temperatures near 90 degrees. Humidity will be back, in abundance. Enjoy your last day of full-on summer, you diehards.

Sunday

The atmosphere will start to become a bit more perturbed by Sunday, as a disturbance or two passes over the region, ahead of the next front. So while Sunday morning should be partly sunny and warm, there will be an increasing chance of showers and thunderstorms later in the day, and overnight. Look for highs in the mid- to upper-80s depending on cloud cover and rainfall at your location.

Monday

Cold front day! A stronger front should move through Houston on Monday, and this will also support the best chance of rainfall. Much of the area should see 1 to 2 inches of rainfall through Monday night, but as usual some parts of Houston will get more, and others less. Highs on Monday may only reach the upper 70s, depending on the timing of the front, and how far away from the coast you live. Lows on Monday night will probably drop into the upper 50s for most areas away from the immediate coast, but again this depends on the timing of the front.

Next week

As for the rest of next week, well, it looks pretty freaking great. I’m expecting at least a few days with highs in the 70s and lows in the 50s (for Houston) and 40s for areas further inland. Fall is here, baby, and it’s going to be spectacular.

Good morning. Houston faces four or five more fairly warm to hot days—today should be the hottest—before the arrival of a fairly robust cold front. The really good news about this front is that there should be plenty of atmospheric moisture to work with, so our confidence has begun to increase in a pretty healthy amount of precipitation accompanying the front. While it’s too early for precise information, 1 to 3 inches of rain would go along way toward ameliorating some of our recent dryness.

Wednesday

Today is going to be pretty muggy as tropical moisture moves into the area. Highs should push into the low 90s for much of the region, with partly to mostly sunny skies, and some of the highest humidity levels we’ve seen in a while. Winds will be light, generally out of the southwest. A weak front will approach the region this evening, and this should spark a 10 to 20 percent chance of rainfall late this afternoon, evening, and overnight. Don’t expect rain, and then you won’t be disappointed when it fails to materialize. Lows will drop into the low 70s tonight.

Thursday

As a modest amount of drier air filters in on Thursday, we can expect sunny skies and highs near 90 degrees. The evening hours should be pleasant, with drier air and temperatures in the upper 70s. Overnight lows will drop into the mid- to upper-60s for the region.

Friday

Drier air starts to go away as winds turn to come from the southeast. Look for sunny skies and highs of around 90 degrees. Lows on Friday night will be a couple of degrees warmer than Thursday night.

Saturday

The first half of the weekend will see humidity levels rise, and partly sunny skies. As moisture levels rebound, we will probably have about a 20 percent chance of rain. Look for highs near 90 degrees once again, with a warm and humid night.

Sunday

Rain chances on Sunday are better, perhaps 40 percent, but I expect showers to remain fairly scattered. Look for more clouds, and as a result highs in the mid-80s.

Monday and beyond

The stronger front looks set to arrive some time on Monday, and combined with a moist atmosphere, this will bring our region’s best chance of rain in more than a month. Forecast models are still quite variable in their outcomes, but I think much of the region should see at least 1 inch of rain, with the potential for more. I am quite optimistic about this right now, but since this remains five days out we just can’t offer any guarantees.

Colder and drier air after the front is coming, however, and I expect Houston to see at least a few days with highs in the 70s and lows in the 50s. Some inland areas may even touch the 40s by Wednesday or Thursday morning, if you can believe that.

Tropics

Tropical Storm Karl has formed in the Gulf of Mexico. Should you be concerned if you live in Texas? No. We told you more than a week ago that the Texas hurricane season was over, and when we’re that definitive on something you should probably trust us. The storm could bring heavy rainfall and flash flooding to parts of the Veracruz and Tabasco states on Mexico this week, however.