Severe Thunderstorms and Heavy Rain in the Mid-Atlantic; Heat Persists Across the South

Scattered severe thunderstorms and excessive rainfall are possible into the night in the Mid Atlantic, and heavy rain will shift to Virginia and the Carolinas on Friday. Severe thunderstorms are also possible in the Central Plains into the Upper MS Valley and the Deep South tonight. Dangerous heat persists across the Southern Plains and Lower MS Valley and heat will expand into the Southwest. Read More >

Current conditions at

Hysham Hills I-94 MP 59.9 (MTHYH)

Lat: 46.16492°NLon: 107.30927°WElev: 3351.0ft.

NA

77°F

25°C

Humidity 26%
Wind Speed SE 8 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Heat Index77°F (25°C)
Last update 21 Aug 12:15 AM MDT
Extended Forecast for

19 Miles S Hysham MT

  • Overnight

    Overnight: Patchy smoke. Partly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm.

    Low: 63 °F

    Patchy Smoke

  • Friday

    Friday: Patchy smoke before 9am. Sunny, with a high near 88. Light and variable wind becoming north northeast 6 to 11 mph in the morning.

    High: 88 °F

    Patchy Smoke
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64. East wind 10 to 14 mph.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers after noon.  Mostly sunny and hot, with a high near 91. East wind 10 to 15 mph.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 64. Southeast wind 9 to 11 mph.

    Low: 64 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after noon.  Mostly sunny and hot, with a high near 93. South southwest wind 5 to 10 mph becoming west northwest in the afternoon.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 63. West northwest wind 5 to 7 mph becoming light and variable.

    Low: 63 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 86. North northwest wind 5 to 7 mph.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. Northeast wind around 5 mph.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy smoke. Partly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm.
Friday
Patchy smoke before 9am. Sunny, with a high near 88. Light and variable wind becoming north northeast 6 to 11 mph in the morning.
Friday Night
Partly cloudy, with a low around 64. East wind 10 to 14 mph.
Saturday
A 20 percent chance of showers after noon. Mostly sunny and hot, with a high near 91. East wind 10 to 15 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 64. Southeast wind 9 to 11 mph.
Sunday
A 20 percent chance of showers after noon. Mostly sunny and hot, with a high near 93. South southwest wind 5 to 10 mph becoming west northwest in the afternoon.
Sunday Night
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 63. West northwest wind 5 to 7 mph becoming light and variable.
Monday
Mostly sunny, with a high near 86. North northwest wind 5 to 7 mph.
Monday Night
Partly cloudy, with a low around 60. Northeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 83. Northeast wind 5 to 7 mph.
Tuesday Night
Partly cloudy, with a low around 60. East southeast wind around 6 mph.
Wednesday
Mostly sunny, with a high near 87. Northeast wind around 6 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61. East northeast wind around 5 mph becoming southeast after midnight.
Thursday
Mostly sunny, with a high near 85. East southeast wind 5 to 8 mph becoming north in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles S Hysham MT
 46.03°N 107.24°W (Elev. 3497 ft)
5:02 pm MDT Aug 20, 2026
12am MDT Aug 21, 2026-6pm MDT Aug 27, 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