I hope everyone enjoyed that incredible weekend, as our weather this week will involve a number of tricks to go along with a few treats. What we are increasingly confident of is that conditions will probably dry out before Thursday afternoon or evening, with the most likely scenario of cool, breezy, and dry weather for trick-or-treating. Warm costumes are recommended for the kids.

Monday

The onshore flow has kicked into gear, but today should still be a pretty nice one across the Houston area, with partly to mostly sunny skies, and highs holding to around 80 degrees. Increasing moisture levels will lead to a fairly cloudy night, and as a result low temperatures tonight will not fall much below 70 degrees for most of the metro area.

Tuesday and Wednesday

As the amount of moisture in the atmosphere rises, we’ll see a corresponding increase in rain chances on Tuesday and Wednesday ahead of the next cold front. Rain chances on Tuesday will be fairly high, without about two-thirds of the area probably seeing light showers. If you’re heading to the Astros game Tuesday evening, however, we think any daytime rainfall will probably wane by or before game time. Post-game temperatures will be around 70 degrees.

The heavier rainfall will hold off until Wednesday—most likely during the afternoon or overnight hours. In terms of accumulation, we can probably expect between 0.5 to 1.5 inches for most areas through Thursday morning, although we cannot rule out greater accumulations. Highs both days will be around 80 degrees. Let’s hope the Astros wrap the series up Tuesday, because Wednesday evening could definitely a bit wet for any revelry.

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It will feel more like a winter day today than a mid-autumn one as we struggle to get out of the 50s! Dress appropriately. Read on for details, as well as the latest thinking for Halloween.

Today

The cold front is already through basically the entire Houston area as of early this morning. Temperatures are noticeably colder this morning.

Most places have dropped into the 50s, and if they haven’t they will soon.

The heaviest rainfall is exiting Houston as I write this post. Look for continued clouds and showers or light rain through the afternoon, along with a good bit of cloud cover. There is a slight chance we do clear out in the afternoon, setting up a nice back half of the day, but right now we would lean toward clouds. Additional rainfall totals should be rather light. We did see some impressive rains overnight.

Unfortunately, the areas west of Houston that needed the rain most saw the least with a half-inch or less in most spots. As you move south or east of downtown Houston, rain totals increased. The area around Santa Fe seems to be the jackpot with close to 4 inches falling.

Temperatures should hold in the 50s for much of the day, maybe inching back up close to 60 degrees, especially west of Houston. Winds will continue gusty at times, generally up to 20 to 25 mph inland and 30 to 35 mph along the coast or bays. Higher gusts are possible in a few spots.

Saturday

If there are still a few clouds Saturday morning, don’t be surprised, but I expect we will clear out rapidly and entirely by afternoon. Winds will gradually subside as well, and all in all Saturday should be a nice day. After a morning low near 50° or in the low-50s, we should warm to the middle or upper-60s.

Sunday

Another fine day is in store on Sunday. We will start off in the 50s (near 60 along the coast) and warm into the 70s on Sunday afternoon. Look for oodles of sunshine, really a sublime day.

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Good morning. Muggier weather will briefly return on Thursday before a cold front pushes into Houston on Friday morning. This frontal passage will bring some fairly heavy rainfall to the region from about midnight Thursday through noon Friday, before much cooler air arrives for the weekend. Saturday and Sunday should be brilliantly fall-like.

Thursday

Breezy conditions today will help pull moisture into the region, but we should still see partly sunny skies this morning. (A coastal flood advisory is in effect due to the pronounced onshore flow). High temperatures will likely get into the low 80s, limited later this afternoon by some developing clouds. Some scattered showers are possible later today, but for the most part any heavy rain should hold off until tonight, probably at least a couple of hours after sunset.

Thursday night through Friday morning

The cold front should reach College Station by around 10pm Thursday night, push into Houston a couple of hours after midnight, and move off the coast before sunrise. The combination of the front, ample Gulf moisture, and favorable dynamics in the upper atmosphere will help generate a broad line of showers and thunderstorms as the front pushes slowly to the southeast. Most parts of the Houston area will likely see 1 to 2 inches of rain between midnight and noon, although we can’t rule out few isolated areas—most likely in Liberty and Galveston counties—seeing up to 4 inches.

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After Tuesday’s stellar weather, conditions will turn a little bit warmer before a cold front sweeps into the area toward the end of the week. The big question remains when this will happen—anywhere from early to late Friday—and this timing will help determine how wet things get in Houston.

Wednesday

Most of the region is starting out this morning somewhere in the neighborhood of 60 degrees. An east wind will turn southeasterly later today, allowing for the onshore flow to resume. Winds could become a bit gusty this afternoon. All in all, however, this still should be a pretty nice fall day with high temperatures tickling 80 degrees and mostly sunny skies. Lows tonight should fall into the mid-60s for central Houston, a bit warmer to the north, and a bit cooler to the south.

Thursday

This should be a more cloudy affair, as moisture begins to stream inland. This will augur the potential for some heavier rain, but for now this appears unlikely before sunset, and most likely after midnight. Highs Thursday will be in the low 80s, with ample humidity, and lows Thursday night probably won’t drop much below 70 degrees.

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