Month: May 2025

In brief: Scattered to numerous storms will impact the Houston area once more today. Severe risks, while low are not zero. We’ll remain unsettled heading into the late week and weekend but hopefully at a less intense pace than we’ve started the week with. Hotter weather lurks on the horizon.

[UPDATE: We’ll pulling the trigger on Stage 1 Flood Alert. See the details at the bottom of the post.]

Today

After things calmed down yesterday, they stayed calm, thankfully. We will not have that luxury today. Storms (non-severe) are already moving across Matagorda County and Wharton County this morning.

There are also a couple isolated storms just west of Downtown. Over the next few hours, the activity near Matagorda Bay will slide across Brazoria and Galveston Counties. Some of those storms could be strong to severe with gusty winds. Lightning and heavy rain are a given with these storms as well. Elsewhere, scattered storms will pop across the rest of the area today. While we don’t expect significant severe weather, we cannot rule out isolated severe storms. Gusty winds are the main concern today.

It’s possible we see an additional cluster of storms develop with daytime heating out near College Station and the Brazos Valley. Those could swing through in the evening hours. Again, the primary concern would be isolated gusty wind as that happens.

Also keep an eye out for heavy rainfall. These storms are putting down close to 2 inch per hour rainfall rates. This could cause some street flooding to crop up in spots. Nothing too, too serious but just be mindful in typically flood-prone spots. Temperatures will be held back in the 80s today.

Thursday through Sunday

We may venture back to a somewhat less widespread coverage of storm chances here, with more sea breeze driven daily thunderstorms. Those tend to be less intense but can produce locally heavy rainfall. So all days should see the potential for a little street flooding in isolated spots. Many places would end up without much rain. One or two storms could be strong.

That said, we will want to keep tabs on what happens out in western Texas. We’ll be in a northwest flow aloft, as winds 20,000 feet up move from northwest to southeast across Texas. If any sort of complexes of storms can develop out west, they could end up nearby eventually. Models don’t do a great job predicting those features more than 18-36 hours out, so there’s certainly a tinge of uncertainty in the forecast. So with all that in mind, we don’t currently expect widespread storms but we’ll be babysitting the situation through the week.

Temperatures look to top out in the upper-80s on days with rain and low-90s on days without. Morning lows should generally be in the 70s.

Next week

A return to drier, hotter weather seems likely next week. High pressure may try to anchor over the Southeast or Gulf, which would keep Southeast Texas at least at the periphery of hot weather, with temperatures likely starting the week in the low 90s and moving upward from there.

Mid-90s will probably return at some point. Stay tuned.

Update: Storms this morning are producing localized torrential downpours with rates of 2-4 inches per hour that will cause heavy ponding and some street flooding in spots. As as result, we’re pulling the trigger on a Stage 1 alert on our Flood Scale.

In brief: Houston rocked and rolled on Monday night as a storm system rumbled through, but in its wake we’re seeing calmer and cooler weather this morning. The reprieve will probably last for 12 to 24 hours before widespread showers return on Wednesday and possibly Thursday.

Monday night’s fireworks

As expected, a line of storms roared through the area overnight. Most parts of the Houston region received a good soaking of 1 to 2 inches of rainfall. In addition to the front, there were straight-line wind gusts of up to 40 or 50 mph in some locations as the storms blew in. There are a few scattered power outages in the Houston area, but the stronger cells went well north of the city, where electricity issues are more widespread this morning.

You may have had an issue loading Space City Weather last night, and for that I apologize. We had website issues unrelated to the storm, but they should be fixed now. Thank you for your patience.

Tuesday

Light rainfall is lingering near the coast this morning, but these showers should end by mid-morning. Following Monday night’s storms the atmosphere is pretty well worked over, and I expect a fairly quiet day in terms of showers and thunderstorms. Most of the area should see partly sunny skies and highs around 90 degrees today as a result. We might see a few scattered showers pop up late this afternoon or evening, but generally expect calm weather today and tonight. Lows tonight will only drop into the mid-70s.

Wednesday and Thursday

Our overall pattern will remain unsettled through at least Thursday, and therefore we can expect both of these days to produce a healthy chance of showers and possibly some thunderstorms. At this time the likelihood of severe weather is lower than what the region experienced on Monday night, but I’m not ruling anything out, especially on Wednesday. I expect most locations to pick up an additional 0.5 to 2 inches of rainfall through Thursday. High temperatures will be in the vicinity of the upper 80s with warm and muggy nights.

Friday

A weak front will approach the area on Friday, and this may spark an additional chance of rainfall. However at this time any showers look to be mostly light. Rain chances will likely ebb during the afternoon and evening hours as drier air slowly filters in. Look for highs in the upper 80s on Friday, with partly sunny skies, and lows dropping to around 70 degrees.

Saturday and Sunday

Our weather this weekend will depend on how that front, stalled near the coast, waffles around. My best guess is that we’ll see partly sunny skies, highs of around 90 degrees, and a slight chance (maybe 20 percent on Saturday and 30 percent on Sunday) of showers and thunderstorms. We’ll see.

Next week

Most of next week looks hotter and sunnier, with highs likely in the lower 90s and low rain chances. So, pretty normal for early June, most likely.

In brief: We hope everyone is enjoying Memorial Day weekend, and we join in remembering all of the US military personnel who gave their lives for this country. The weather should be fine for outdoor ceremonies today. However, Houston will face a series of storm systems this week, including a potentially impactful event tonight. Most of the region should see some much-needed rainfall during the next seven days.

Not a drought, but close

The second half of spring has been fairly dry. Drought conditions are much more acute in central and West Texas, where an exceptional drought has developed ahead of summer. Although Houston is not in a drought, abnormally dry conditions have moved into Brazoria and Waller Counties, with a moderate drought southwest of there. Now that we are approaching the hottest and often driest part of the year, these drought-like conditions would spread into Houston rapidly in June, in the absence of rain. However, as the forecast for this week indicates, that is now unlikely to happen.

Memorial Day and night

A series of disturbances will impact our area’s weather this week, and the first of these is already propagating to the north of College Station this morning. I anticipate that the majority of this activity will remain north of the Houston metro area, likely along Highway 105 and points north in Montgomery County. But we can’t rule out some activity further south. Skies in Houston should be mostly sunny today, with highs in the low 90s and gusty southerly winds. Humidity will, accordingly, be high.

Another disturbance should move into the region this evening, perhaps not reaching Harris County until midnight or later. This has the potential (and the emphasis here is on potential, given the uncertainty) to bring more widespread showers and thunderstorms into the entire region, all the way down to the coast. The most likely time for significant activity is between midnight tonight and noon on Tuesday. Some hail and damaging winds will be possible during thunderstorms, and most locations should pick up 0.5 to 2 inches of rain.

Tuesday, Wednesday, and Thursday

After these storms we’ll remain in an unsettled pattern for the remainder of the week. Each day will have a healthy chance of showers and thunderstorms, perhaps on the order of 50 percent. Accordingly, high temperatures should be in the upper 80s with partly to mostly cloudy skies. To be clear, these days won’t be total washouts. But pop-up showers will be possible at any time.

Friday

By Friday the overall pattern may start to change a little bit, but with an unsettled atmosphere lingering there still will be a decent chance of rain, in the 30 to 50 percent range. Expect partly sunny skies and highs in the upper 80s.

Saturday, Sunday, and beyond

By this weekend we should see partly to sunny skies, with highs around 90 degrees. Rain chances won’t go away entirely, but they look to be on the order of maybe 30 percent daily. Next week likely brings us back into the lower 90s, with mostly sunny skies and little to no rain. So stock up this week!

In brief: The holiday weekend should be mostly fine (albeit hot) in Houston. Rain chances will rev back up a bit late Sunday night and Monday morning and again deeper into next week. For now, Memorial Day Monday looks unsettled but perhaps not a total loss.

Memorial Day Weekend

Let’s jump right into the big holiday weekend. First off, if you have plans in the Houston area or on the coast today and tomorrow, you’re more than likely going to have no issues whatsoever. There could be a passing shower or storm in the region, but it would most likely be extremely isolated. The vast majority of us should see absolutely nothing.

If the odds of rain on Friday and Saturday are something like 5 percent, then I think Sunday’s odds nudge up to about 10 percent. Again, the vast majority of the area will be fine on Sunday. But there should be at least a few more pop-up showers or a very, very isolated thunderstorm.

So what about Monday? Well, that’s the trickiest day of them all this weekend. Models have been pretty consistent about trying to bring a cluster of thunderstorms in from the north on Sunday night into Monday morning. We could then see a break in the action followed by another round perhaps on Monday night. We’ll see if that’s how it unfolds. Eric or I will throw an update out there on Monday morning with the latest thinking. I would not postpone any plans at this point, but I’d be mindful that the chance of rain is highest on Monday.

Region-wide holiday weekend weather

If you’ll be traveling across Texas this weekend, there should not be a whole heck of a lot to bother you today or tomorrow. Isolated storms could be on the stronger side between the Permian and the Panhandle. And there’s a slight (2/5) risk of severe storms near Wichita Falls on Saturday.

Sunday is a little more interesting with the potential for more severe storms, especially from the Caprock into North Texas.

The remnants of those storms are what we could see in the Houston area late Sunday night or Monday morning.

And then for Monday, that chance of severe weather moves more into Hill Country and Central Texas up through DFW. Basically, between Houston and Dallas, there will be some severe risk Monday afternoon and evening.

Memorial Day Weekend has had a history of flash flooding in Texas. At this time, the risk of flooding looks to be about average given the forecast; there are no significant flash flooding concerns right now.

Holiday weekend temperatures

As for the temperatures? They look hot. The combination of heat and humidity will make it feel like 100 to 105 degrees at times tomorrow through Monday. Actual highs will be in the mid-90s, with morning lows in the upper-70s. It will be cooler by day closer to the coast and a bit hotter farther inland.

Next week

Temperatures will back down a bit due to clouds and rain chances next week. While it won’t rain everywhere or every day, there will be a good chance of rounds of thunderstorms throughout the week.