Onion Spring, Texas Weather
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Weather Forecast for Onion Spring, Texas : Brewster County
Issued: 6:06 am CDT Sep 14, 2025 Latitude: 29.4001973 Longitude: -103.3337878 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Monday Tuesday Wednesday Thursday Friday Saturday
50% chance of thunderstorms on Today 30% chance of thunderstorms on Tonight 20% chance of thunderstorms on Monday Mostly Sunny on Tuesday Partly Sunny on Wednesday Mostly Sunny on Thursday Mostly Sunny on Friday Mostly Sunny on Saturday
High: 91°F Low: 68°F High: 89°F High: 89°F High: 88°F High: 88°F High: 88°F High: 90°F
Low: 67°F Low: 66°F Low: 67°F Low: 67°F Low: 68°F  
Thunderstorms Thunderstorms Thunderstorms Mostly Sunny Partly Sunny Mostly Sunny Mostly Sunny Mostly Sunny
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Current Conditions at
PRESIDIO - (KPRS)
72°
Clear
as of 7:35 AM CDST
Rel. Humidity: 64%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 24 MPH
010° North
Cloud Level(s): Clear
Current Conditions at
ALPINE - (KE38)
61°
Mostly Cloudy
as of 7:35 AM CDST
Rel. Humidity: 93%
Dew Point: 59°F
Visibility: 10 Miles
Pressure: 30.19 in.
Flight Rule: VFR
Wind Data
6 MPH
220° Southwest
Cloud Level(s): Broken at 11000ft
Current Conditions at
MARFA - (KMRF)
61°
Cloudy
Light Rain
as of 7:01 AM CDST
Rel. Humidity: 87%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
10 MPH
060° Northeast
50% chance of thunderstorms Today Today... A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Southwest wind around 5 mph becoming east in the afternoon. Chance of precipitation is 50%.

30% chance of thunderstorms Tonight Tonight... A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 68. East wind 5 to 10 mph becoming light and variable in the evening.

20% chance of thunderstorms Monday Monday... A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Light and variable wind becoming east 5 to 10 mph in the morning.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 67. East wind 5 to 10 mph becoming light southeast after midnight.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 89. East wind 5 to 10 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 66.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 88.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 67.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 88.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 67.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 88.

Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 68.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 90.

Sun Almanac for Onion Spring, Texas
Sunrise: 07:38 AM
Sunset: 8:00 PM
Civil Sunrise:07:14 AM
Civil Sunset: 8:23 PM
Nautical Sunrise: 06:46 AM
Nautical Sunset: 8:51 PM
Astro Sunrise: 06:18 AM
Astro Sunset: 9:19 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.