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

Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend as gusty winds and low relative humidity continue. Read More >

Current conditions at

HARLEM (HRLM)

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

NA

53°F

12°C

Humidity 52%
Wind Speed WSW 2 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 19 Mar 09:00 PM MDT
Extended Forecast for

Chinook MT

  • Tonight

    Tonight: Partly cloudy, with a low around 51. Breezy, with a west wind 15 to 22 mph, with gusts as high as 31 mph.

    Low: 51 °F

    Partly Cloudy
    and Breezy

  • Friday

    Friday: A slight chance of rain between 8am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 78. Windy, with a west wind 13 to 18 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 20%.

    High: 78 °F

    Slight Chance
    Rain then
    Mostly Sunny
    and Windy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 53. Windy, with a west wind 20 to 30 mph, with gusts as high as 41 mph.

    Low: 53 °F

    Mostly Cloudy
    and Windy

  • Saturday

    Saturday: A 30 percent chance of rain after noon. Cloudy, with a high near 59. West wind 17 to 20 mph becoming north in the afternoon. Winds could gust as high as 28 mph.

    High: 59 °F

    Cloudy then
    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 26. North wind 6 to 16 mph, with gusts as high as 23 mph.

    Low: 26 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 53. South southeast wind 5 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 53 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 27. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.

    Low: 27 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 56. West southwest wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 56 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 51. Breezy, with a west wind 15 to 22 mph, with gusts as high as 31 mph.
Friday
A slight chance of rain between 8am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 78. Windy, with a west wind 13 to 18 mph increasing to 25 to 30 mph in the afternoon. Winds could gust as high as 41 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 53. Windy, with a west wind 20 to 30 mph, with gusts as high as 41 mph.
Saturday
A 30 percent chance of rain after noon. Cloudy, with a high near 59. West wind 17 to 20 mph becoming north in the afternoon. Winds could gust as high as 28 mph.
Saturday Night
Mostly cloudy, with a low around 26. North wind 6 to 16 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 53. South southeast wind 5 to 14 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Mostly cloudy, with a low around 27. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 56. West southwest wind 6 to 13 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 29.
Tuesday
Mostly cloudy, with a high near 55.
Tuesday Night
A slight chance of rain. Mostly cloudy, with a low around 37.
Wednesday
A slight chance of rain. Mostly cloudy, with a high near 61. Windy.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 22. Windy.
Thursday
Mostly sunny, with a high near 48.
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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:
10:17 pm MDT Mar 19, 2026
Forecast Valid:
10pm MDT Mar 19, 2026-6pm MDT Mar 26, 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