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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

HARLEM (HRLM)

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

NA

46°F

8°C

Humidity 67%
Wind Speed E 3 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 03 Oct 10:00 PM MDT
Extended Forecast for

Chinook MT

  • Tonight

    Tonight: Mostly clear, with a low around 39. East wind around 9 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 73. East southeast wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 73 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43. East southeast wind 5 to 10 mph becoming light and variable after midnight.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 81. West wind 7 to 17 mph, with gusts as high as 26 mph.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. West wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 73. West northwest wind around 6 mph.

    High: 73 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 43. Light and variable wind.

    Low: 43 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72. Light and variable wind becoming southeast around 6 mph in the morning.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 39. East wind around 9 mph.
Sunday
Sunny, with a high near 73. East southeast wind 9 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 43. East southeast wind 5 to 10 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 81. West wind 7 to 17 mph, with gusts as high as 26 mph.
Monday Night
Mostly clear, with a low around 47. West wind 8 to 11 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 73. West northwest wind around 6 mph.
Tuesday Night
Partly cloudy, with a low around 43. Light and variable wind.
Wednesday
Mostly sunny, with a high near 72. Light and variable wind becoming southeast around 6 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 74.
Friday Night
Mostly cloudy, with a low around 42.
Saturday
A slight chance of rain. Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chinook MT
 48.59°N 109.26°W (Elev. 2408 ft)
Last Update:
10:41 pm MDT Oct 3, 2026
Forecast Valid:
11pm MDT Oct 3, 2026-6pm MDT Oct 10, 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