2018 Long Range Weather Forecast for San Antonio, TX


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See long range weather forecasts for the next 60 days from The Old Farmer’s Almanac! Our long range forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to sporting events and outdoor activities.

To see long term forecasts for the entire year, pick up a copy of the annual Old Farmer’s Almanac, available online and in stores.

Note: Long range forecasts are regional, not city-specific. If your city is located inside a region, the region's forecast will apply to you.

Free 2-Month Weather Forecast

June 2018 Long Range Weather Forecast for Texas-Oklahoma
DatesWeather Conditions
Jun 1-3Sunny, warm
Jun 4-11Scattered t-storms, warm
Jun 12-20Sunny north, t-storms south; cool
Jun 21-30Scattered t-storms, warm
Junetemperature 78° (1° below avg.)
precipitation 6" (avg. north, 4" above south)

July 2018 Long Range Weather Forecast for Texas-Oklahoma
DatesWeather Conditions
Jul 1-8Scattered t-storms north, sunny south; warm
Jul 9-12Sunny, warm
Jul 13-16T-storms north, sunny south; warm
Jul 17-26Scattered t-storms, warm
Jul 27-31Sunny, cool
Julytemperature 80° (1° below avg.)
precipitation 4" (1" above avg.)

Annual Weather Summary: November 2017 to October 2018

Winter will be colder than normal, with above-normal precipitation. The coldest periods will be from late November into early December, from late December into early January, and in early February. Snowfall will be near to above normal, with the snowiest periods in late December and early to mid-February. April and May will be cooler and rainier than normal. Summer will be cooler and rainier than normal, with the hottest periods in mid-July and mid-August. Expect a hurricane threat in late August. September and October will be warmer and rainier than normal. Watch for a tropical storm threat in early September.

Map showing Old Farmer's Almanac long range weather region number 11

About the Texas-Oklahoma Region

The Texas-Oklahoma long range weather region includes all or part of the following states: NEW MEXICO (Eunice, Hobbs, Jal, Lovington, Portales), OKLAHOMA (Broken Arrow, Lawton, Norman, Oklahoma City, Tulsa), TEXAS (Austin, Dallas, Fort Worth, Houston, San Antonio).

Texas-Oklahoma Neighboring Regions

Here are the regions that neighbor the Texas-Oklahoma long range weather region:

Temperature and Precipitation November 2017 to October 2018

Temperature and Precipitation Graph

Reader Comments

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Not accurate for 2018 for sure

Think this forecast is incorrect for north Texas. Had an over abundance of rain in February and the rest of the time we've been below average for rainfall. Maybe the precipitation and temperature graph bars needs to be flipped the other direction for above normal temps and below normal rainfall...

Wrong Precipitation by a lot for February 2018

We had so much rain in February - normal is 3", we had 9" in Denton, Texas. Other than that, I was told that El Nino will be predominant from August on, so we expect more rail to come our way.


Hello, I was wondering if I could get an estimate on the forecast in Southwestern Oklahoma on October 20, 2018. I am planning an outdoor wedding and I want to plan for everything... but I am on a tight budget so if I could get a better educated guess than a "maybe" I would greatly appreciated it. Maybe a percentage as of right now the likelihood of us getting any precipitation?

Thank you for your time and assistance; I look forward to hearing from you.


Long range forecast for TX OK

FA was spot on for Austin San Antonio metroplex. We had a colder than the "new normal" winter with snow that didn't melt as it hit the ground. Cooler than average for spring. Planted my garden later than usual and plants are doing fine. But this week we had triple digit heat we don't typically have this early.

Forecast completely wrong

For Odessa Texas the forecast was completely wrong. It was a warm dry winter and has been hot and dry since then. Have had less than an inch of rain for the year. It’s been over 100 for days now Any way for an update forecast.

Missed it by a Mile

Here in north-Central Texas the FA has missed the temps by far. Suppose to hit the 100's today and will stay over that for the next week. Would love to have the 'above average' rainfall... would love to have rainfall!

Abnormally Hot

Here in RGV the temperatures have reached more than 100 for almost two weeks. Seems like Summer could't wait any longer and just took its place. I just hope this isn't a glimpse of how hellish the following months will be.

Dryer than normal

Farmers almanac didn't get it right for my area, which is Southeast Texas... We've had dryer than normal precip and no rain in the forecast.. Hotter than normal Temps all next week. Hope we don't have another drought like in 2011


Ever think it could be all the "clean air" we have now causing these hot summers? No smog left to filter out the sun lol.

Long range

Here in San Antonio we had a great snow during our short winter. Very wet April and cool. May 2018 has been basically dry, windy, and next 8 days are forecast to be 100+! Whew! Moved here from Virginia mountains 1.5 years ago. Used to love gardening there but gracious, its been a trial here. Growers need to adjust their shipping times for mail order delivery to this area! By the time it arrives, it is so hot the poor baby plants struggle, even those indicated for this zone.