Matt Lanza

In brief: Get ready for a wild ride in the temperature department. Houston will threaten our all-time November high temperature tomorrow before a cold front knocks 20 degrees off things for Sunday, followed by morning lows in the 30s and 40s. Don’t get too comfortable because 80s should return later next week.

Today & Saturday

The main story the next two days will be temperatures. Hot temperatures. Typical early November daytime highs are in the mid-70s. We’ll easily jump 10 to 15 degrees above that today and Saturday. Can we do our first official 90 degree November day on record? If I were in Vegas, I would take the under, but not by much. My guess is we hit 86 to 88 today and 87 to 89 tomorrow at IAH.

Upper air temperatures do support highs as close to 90 as we’ll ever see in November, so the chance is definitely there. Either way, it will be close to a record for the date (89 both days). Dewpoints crept back into the mid-60s on Thursday. Look for more of that today and tomorrow, with a chance for dews to get into the 70s (very humid) tomorrow night ahead of the front.

Sunday

The cold front itself should hit the Houston area between about 2 to 6 AM on Sunday, give or take. It will come with perhaps a handful of light showers, especially south and east of the city. But for the most part the only way you’ll know is by the increase in wind. Wind gusts of 25 to 30 mph, with a few 35 mph gusts as well are likely Sunday and Sunday night. This won’t be quite as windy as the front that hit us right before Halloween but you will notice it out there.

As far as temperatures go, Sunday will be interesting. We may see temps drop for a few hours on Sunday morning after sunrise before stabilizing and warming back to near 70 degrees Sunday afternoon. Either way, it will be roughly 15 to 20 degrees cooler on Sunday than it will be Saturday, so break out the pumpkin spice latte. Have some weight to stabilize your Texans tailgate canopies in the breezy conditions and perhaps a light jacket before the game against the Jags. It’ll be sunny otherwise.

Monday and Tuesday

More sun Monday and Tuesday. It appears that the coldest morning will be Tuesday, with the best combination of clear skies and light winds.

We should see numerous 40s everywhere on Monday and then 40s with many upper-30s peppered in on Tuesday morning. Tuesday’s record low of 32 degrees seems comfortably safe for Houston, but a few spots could push the freezing mark well outside of the Metro area. Highs on Monday may not even get much past 60 degrees in spots. Time to get up the Christmas lights.

Beyond Tuesday

If you thought this was it, that this was winter arriving for the season, Charlie Brown would like a word.

You are probably going to be surprised to know that high temperatures may push back into the low to mid-80s by late next week. If they don’t hate you already, I assure you that your sinuses will hate you by next weekend.

In brief: The coolest morning since spring has brought crisp conditions to Houston today! Look for more of that tomorrow. A chance of showers will disrupt the forecast on Saturday, but additional pleasant fall weather should follow Sunday through Tuesday. We may then see a more significant warm up in temperatures later next week.

Apologies for the delay on this. I was a little absent-minded this morning and forgot I switched with Eric, who unlike myself actually runs on cool mornings! For those that have been waiting for this, congratulations! One of the five warmest Octobers on record in Houston has saved its most crisp weather for the end. Temperatures this morning were in the 40s and low 50s everywhere. Here’s a map of all places that clocked in at or below 46 degrees (because I can’t get the filter to sit at 45 degrees):

Some cool things to note on the map above are the presence of the urban heat island, where most areas inside the Beltway ended up closer to 50 degrees, as well as the influence of the Gulf and Galveston Bay, which moderates temperatures warmer near the coast.

Anyway, the good news is that we’ll have some delightful weather today, with much less wind.

Today and Friday

Look for ample sunshine today and tomorrow. High temperatures will peak near 70 today and probably in the mid-70s tomorrow. Humidity will remain low, and there will be generally light winds, except at the immediate coast today. Morning lows on Friday should be fairly similar to this morning.

Saturday

The one forecast hiccup comes Saturday. A weak reinforcing cool front is going to move in from the north. As it does so, we’ll see an increase in clouds and some scattered showers. Not everyone will see rain on Saturday. But at least scattered coverage and a few isolated thunderstorms seem likely. After morning lows in the 50s, look for daytime highs in the 70s.

Sunday

The air mass behind this front will be less potent than what we’re currently seeing. Look for lows in the upper-40s and low-50s on Sunday. Winds will be notable, but a good 10 mph or more lower than what we saw on Wednesday. Gusts of 20 to 30 mph will be possible, especially along the immediate Gulf coast. Other than the breeze, expect sunshine.

Next week

Quiet weather locks in for most of next week it appears. Temperatures will begin to warm up with highs in the low-70s Monday, mid-70s Tuesday, and near 80 on Wednesday. Warm weather may linger deep into next week or weekend.

It does look like the first half of November may pick up where October left off last week. I anticipate we will see a front or two sneak in eventually, but in general, warmer and drier than normal weather is expected to dominate the front half of November.

In brief: Scattered showers and some embedded thunderstorms will dot the Houston area today and Saturday, although we really, really need some rain. A generally pleasant stretch of weather will follow, with periodic cool fronts reinforcing warm but mostly comfortable autumn weather. Our first real big front of the season may be on the horizon before Halloween.

The first 16 days of October have ended with Houston recording a top 10 warmest front half of the month on record. It’s not just us either. Chicago’s had a top 10 warmest October so far. Atlanta is in the top 20. Miami is in the top 25, and St. Louis ranks third warmest right now. While the West has been cooler and the East Coast near average, the center of the country has remained toasty so far this month. That may be about to change a bit. We may be in line for more fairly nice mornings, warm to perhaps hot daytimes but I think at levels below what we’ve seen so far this autumn. In other words, we’re getting there.

Speaking of temperatures…

If you use the Space City Weather app (and you should), and if you set your city to Houston, those observations come from Bush Airport. If you’ve followed along this summer, you know that the official Houston temperature sensor at IAH has been a source of confusion, amusement, annoyance, conspiracy theories, outrage, and curiosity. To that end, out of an abundance of caution, the temperature sensor at IAH was replaced this week. The previous sensor was reading within what was expected, but given the wide ranging displeasure that has been shared, including by some credible folks on the matter, it’s been replaced. As I noted earlier this summer, we can quibble with the choice of IAH to represent Houston’s official temperature, but that doesn’t mean the sensor itself is wrong. It’s a temperature at IAH, not in your backyard. How that impacts how we view records is perhaps a bit more complicated and contentious but after looking at summer’s data, it does not seem to have made IAH a distinct outlier in the region by any means.

Anyway, for those of you scoring at home, there’s a new temperature sensor in town. Have at the data.

Friday through Sunday

Scattered showers are going to pop up today across the region. We need the rain.

Drought now covers nearly 40 percent of the Houston area, with severe drought now showing up in parts of Colorado and Wharton Counties. If you get a passing shower today or tomorrow, consider yourself fortunate. Expect showers today to behave with the heating of the day, increasing in coverage from morning through afternoon, then diminishing after dark. Showers should maneuver farther inland today so hopefully other parts of the area away from the coast could pick up a scattered quarter to half-inch of rain.

On Saturday, showers will start in the morning again, initially mostly near the coast and west of I-45 out across Katy into Fort Bend County. By the time we get to midday, the focus of the activity should migrate eastward toward I-45 and perhaps east of downtown Houston. Include an umbrella in your plans both Friday and Saturday anywhere in the area, but it is unlikely you’ll need one all day or even most of the day. We probably won’t see severe weather on Saturday, but to our north, there is a slight risk (level 2 of 5) in place up toward Lufkin and a marginal risk (level 1 of 5) closer to Lake Livingston.

The front itself passes on Sunday morning around sunrise. Right now, we aren’t expecting much fanfare with the front; it looks like a dry passage. We’ll see temperatures and humidity drop off a bit as it does so. The rest of the day looks breezy with sunshine and highs in the upper 80s. It will feel much more comfortable. Some wildfire risk is in place in the area Sunday afternoon, but it does not appear any worse than previous wildfire risk days we’ve had so far this autumn. Just use caution with anything flammable outdoors.

Early next week

Monday looks sunny and pleasant with highs in the upper-80s and morning lows in the 50s and 60s. Another front should reinforce this pleasant but not quite “cool” air mass on Tuesday night. It may bring a few showers out ahead of it as humidity attempts to return, but the odds look minimal right now. We’ll hold with mid to upper 80s for highs and generally 60s for lows.

Later next week

I’m with Eric that we could very well see another weak cold front later in the week. It does not appear to be THE fall front just yet, however. There is increasing signal in the modeling that that front will wait until right before Halloween. We’ll either be celebrating the arrival of fall or celebrating its imminent arrival at our Fall Day celebration next weekend. Stay tuned.

In brief: Dry weather will continue in the Houston area for the foreseeable future with warm to hot afternoons and somewhat pleasant mornings. Drought is expanding in Houston now, and with that comes some elevated wildfire risk, particularly today north and east of Houston. Thankfully, winds look generally light on land.

Good morning, and if you’ve stepped outside this morning, it really does feel kind of good! Much of the area is seeing temperatures in the 60s this morning.

Tonight should be even a bit cooler. Low humidity will allow for cooler nights and continued warm to hot days heading into next week.

Drought update

A couple notes on that drier air: First off, drought has finally begun to creep into the Houston area.

We’ve seen some drought on the fringes, but that has now begun creeping into the immediate metro. With no rain expected over the next week, this should continue to slowly expand. Thankfully, we were able to bank some rain this summer due to the frequent cadence of daily storms. But that only gets you so far once you get to autumn.

Wildfire risk

Because of this dry, less humid weather and expanding drought, human-caused wildfire risk is somewhat elevated, particularly today and possibly tomorrow. Please continue to use extreme caution outdoors when it comes to anything that could lead to a fire. Thankfully the winds are well below Red Flag Warning criteria, but even still, this is a reminder that wildfires can and have happened here before.

Humidity levels increase enough to suppress wildfire risk after tomorrow. We may get a brief reinforcing “cool” front next week, but aside from that, today should be the most elevated day for fire risk for a bit.

Forecast notes

The forecast is pretty straightforward other than what we’ve discussed above! We expect little to no rain over the next 7 to 10 days. Daytime highs will be in the upper 80s to low 90s. Morning lows will be in the lower 60s tomorrow, then mid to upper 60s heading into next week. Not a whole lot of risk or wrinkles to this forecast right now. So, expect sunshine, occasional ozone alerts, and continued bad allergy weather. Both the good and the bad in early October in Houston.