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

Heavy Rainfall for Portions of the West and Central U.S.; Monitoring Fire Weather Conditions for New England

Tropical moisture continues to flow across portions of the Great Basin, desert Southwest and California. Isolated instances of flash flooding remains possible. Meanwhile, a storm and associated frontal boundary will focus showers and thunderstorms for the center of the nation. For New England, dry and breezy conditions could enhance favorable fire weather conditions. Read More >

Current conditions at

HARLEM (HRLM)

Lat: 48.54333°NLon: 108.83472°WElev: 2358.0ft.

NA

90°F

32°C

Humidity 20%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Heat Index86°F (30°C)
Last update 20 Sep 04:00 PM MDT
Extended Forecast for

Chinook MT

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Southwest wind around 6 mph becoming south southeast in the evening.

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 85. West wind 6 to 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of rain, mainly after midnight. Increasing clouds, with a low around 49. West wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 49 °F

    Slight Chance
    Rain then
    Chance Rain

  • Monday

    Monday: A 20 percent chance of rain before noon. Cloudy through mid morning, then gradual clearing, with a high near 68. West wind 14 to 18 mph, with gusts as high as 30 mph.

    High: 68 °F

    Slight Chance
    Rain then
    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. Northwest wind 5 to 9 mph becoming light and variable in the evening.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Calm wind becoming south around 6 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44. Southeast wind around 6 mph.

    Low: 44 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Southeast wind 3 to 8 mph.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 49. Southwest wind around 6 mph becoming south southeast in the evening.
Sunday
Sunny, with a high near 85. West wind 6 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A 50 percent chance of rain, mainly after midnight. Increasing clouds, with a low around 49. West wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
A 20 percent chance of rain before noon. Cloudy through mid morning, then gradual clearing, with a high near 68. West wind 14 to 18 mph, with gusts as high as 30 mph.
Monday Night
Mostly clear, with a low around 39. Northwest wind 5 to 9 mph becoming light and variable in the evening.
Tuesday
Sunny, with a high near 77. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 44. Southeast wind around 6 mph.
Wednesday
Sunny, with a high near 84. Southeast wind 3 to 8 mph.
Wednesday Night
Mostly clear, with a low around 44.
Thursday
Sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 79.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chinook MT
 48.6°N 109.23°W (Elev. 2408 ft)
Last Update:
2:10 pm MDT Sep 20, 2025
Forecast Valid:
4pm MDT Sep 20, 2025-6pm MDT Sep 27, 2025
 
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Additional Resources

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Chance of Precipitation