National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.

Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >

Current conditions at

Alpine, Alpine-Casparis Municipal Airport (KE38)

Lat: 30.38°NLon: 103.68°WElev: 4514ft.

Fair

71°F

22°C

Humidity 10%
Wind Speed W 6 mph
Barometer 30.01 in
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Last update 18 May 11:15 pm CDT
Extended Forecast for

5 Miles SE Marathon TX

  • Tonight

    Tonight: Clear, with a low around 60. East wind 5 to 15 mph becoming northeast after midnight.

    Low: 60 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. North wind 5 to 10 mph becoming southeast in the afternoon.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 60. East wind 10 to 15 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 40 mph.

    Low: 60 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 85. Southeast wind 10 to 15 mph.

    High: 85 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 1am. Low around 58. East wind 5 to 10 mph. Chance of precipitation is 80%.

    Low: 58 °F

    Showers

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 56.

    Low: 56 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 85.

    High: 85 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 58.

    Low: 58 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 60. East wind 5 to 15 mph becoming northeast after midnight.
Tuesday
Sunny, with a high near 93. North wind 5 to 10 mph becoming southeast in the afternoon.
Tuesday Night
Increasing clouds, with a low around 60. East wind 10 to 15 mph increasing to 20 to 25 mph after midnight. Winds could gust as high as 40 mph.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 85. Southeast wind 10 to 15 mph.
Wednesday Night
Showers and possibly a thunderstorm before 1am. Low around 58. East wind 5 to 10 mph. Chance of precipitation is 80%.
Thursday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 56.
Friday
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 85.
Friday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 58.
Saturday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 82.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Sunday
A chance of showers and thunderstorms. Sunny, with a high near 83.
Sunday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 57.
Memorial Day
A chance of showers and thunderstorms. Sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Marathon TX
 30.15°N 103.19°W (Elev. 4226 ft)
Last Update:
6:07 pm CDT May 18, 2026
Forecast Valid:
11pm CDT May 18, 2026-6pm CDT May 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation