Extreme Heat Lingers; Severe Thunderstorms for Portions of the Plains and Southeast; Heavy Rainfall Threats

Gusty winds and heavy rainfall may impact the Big Island of Hawaii as a nearby tropical system passes west of the islands. From the Southwest U.S., Rockies and across the Gulf Coast, heavy rainfall could lead to isolated flash flooding. Severe thunderstorms are expected for areas of the Plains, Gulf Coast and Southeast through Tuesday. Extreme heat lingers for the southern Plains and Southwest. Read More >

Current conditions at

Alpine (K46U)

Lat: 43.1846°NLon: 111.0424°WElev: 5634.0ft.

Partly Cloudy

75°F

24°C

Humidity 41%
Wind Speed N 0 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 24 Aug 06:15 PM MDT
Extended Forecast for

10 Miles SE Rafter J Ranch WY

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Some of the storms could be severe.  Mostly cloudy, with a low around 46. Breezy, with a southwest wind 12 to 17 mph becoming light and variable  after midnight. Winds could gust as high as 24 mph.

    Low: 46 °F

    Severe
    Thunderstorms
    and Breezy
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between 2pm and 4pm.  Mostly sunny, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the afternoon.  Chance of precipitation is 10%.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 48. West northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 48 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 48. Light and variable wind.

    Low: 48 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms.  Mostly cloudy, with a low around 46. Chance of precipitation is 20%.

    Low: 46 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Some of the storms could be severe. Mostly cloudy, with a low around 46. Breezy, with a southwest wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 24 mph.
Tuesday
A slight chance of showers and thunderstorms between 2pm and 4pm. Mostly sunny, with a high near 85. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 10%.
Tuesday Night
Mostly cloudy, with a low around 48. West northwest wind 5 to 8 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 87. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 47. Calm wind.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. Calm wind becoming west southwest around 5 mph in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48. Light and variable wind.
Friday
A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 82.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 46. Chance of precipitation is 20%.
Saturday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 41.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 38.
Monday
A slight chance of showers and thunderstorms. Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles SE Rafter J Ranch WY
 43.3°N 110.69°W (Elev. 7001 ft)
5:31 pm MDT Aug 24, 2026
6pm MDT Aug 24, 2026-6pm MDT Aug 31, 2026
 
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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