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Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

FORT PECK DAM (GGWFP)

Lat: 48.0084°NLon: 106.3962°WElev: 2280.0ft.

NA

78°F

26°C

Humidity 54%
Wind Speed WNW 16 MPH
Barometer NA
Dewpoint 60°F (16°C)
Visibility NA
Heat Index79°F (26°C)
Last update 17 Aug 10:52 AM MDT
Extended Forecast for

19 Miles SSE Fort Peck MT

  • This Afternoon

    This Afternoon: Sunny, with a high near 87. West northwest wind around 6 mph.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 5am. Mostly cloudy, with a low around 64. West northwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Calm wind becoming south southeast 5 to 7 mph in the afternoon.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 65. East wind 3 to 7 mph.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Southeast wind 3 to 8 mph.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 70. South southeast wind around 8 mph.

    Low: 70 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. Southeast wind 6 to 10 mph becoming southwest in the afternoon.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66. West wind 6 to 10 mph becoming north after midnight.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 83. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 83 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 87. West northwest wind around 6 mph.
Tonight
A chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 5am. Mostly cloudy, with a low around 64. West northwest wind around 6 mph becoming calm after midnight. Chance of precipitation is 30%.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Calm wind becoming south southeast 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 65. East wind 3 to 7 mph.
Tuesday
Sunny and hot, with a high near 98. Southeast wind 3 to 8 mph.
Tuesday Night
Mostly clear, with a low around 70. South southeast wind around 8 mph.
Wednesday
Sunny and hot, with a high near 99. Southeast wind 6 to 10 mph becoming southwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 66. West wind 6 to 10 mph becoming north after midnight.
Thursday
Sunny, with a high near 83. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday Night
A 20 percent chance of showers after midnight. Mostly clear, with a low around 56. North wind 6 to 10 mph, with gusts as high as 18 mph.
Friday
Sunny, with a high near 78. North northwest wind 6 to 9 mph.
Friday Night
Mostly clear, with a low around 54.
Saturday
Sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles SSE Fort Peck MT
 47.78°N 106.25°W (Elev. 2398 ft)
Last Update:
2:28 am MDT Aug 17, 2025
Forecast Valid:
12pm MDT Aug 17, 2025-6pm MDT Aug 23, 2025
 
Forecast Discussion
 
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Additional Resources

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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