Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

HARLEM (HRLM)

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

NA

57°F

14°C

Humidity 44%
Wind Speed WSW 5 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 20 Mar 10:00 PM MDT
Extended Forecast for

Chinook MT

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 5am.  Mostly cloudy, with a low around 50. Breezy, with a west wind 21 to 26 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 37 mph.

    Low: 50 °F

    Chance Rain
    and Breezy

  • Saturday

    Saturday: A 40 percent chance of rain, mainly before 3pm.  Mostly cloudy, with a temperature falling to around 50 by 5pm. West wind 13 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 24 mph.

    High: 56 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A slight chance of rain and snow before midnight, then a chance of snow.  Mostly cloudy, with a low around 27. North northwest wind 5 to 13 mph becoming east southeast after midnight. Winds could gust as high as 18 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 27 °F

    Slight Chance
    Rain/Snow
    then Chance
    Snow

  • Sunday

    Sunday: Sunny, with a high near 54. East southeast wind 6 to 11 mph becoming west 13 to 18 mph in the morning. Winds could gust as high as 25 mph.

    High: 54 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26. West wind 6 to 14 mph becoming south in the evening. Winds could gust as high as 21 mph.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 55. Light west wind becoming west northwest 5 to 9 mph in the afternoon.

    High: 55 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 28. North northwest wind 7 to 10 mph becoming east southeast after midnight.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 57. East wind 7 to 14 mph becoming south southeast in the afternoon. Winds could gust as high as 21 mph.

    High: 57 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of rain, mainly after 5am. Mostly cloudy, with a low around 50. Breezy, with a west wind 21 to 26 mph decreasing to 15 to 20 mph after midnight. Winds could gust as high as 37 mph.
Saturday
A 40 percent chance of rain, mainly before 3pm. Mostly cloudy, with a temperature falling to around 50 by 5pm. West wind 13 to 17 mph becoming north northwest in the afternoon. Winds could gust as high as 24 mph.
Saturday Night
A slight chance of rain and snow before midnight, then a chance of snow. Mostly cloudy, with a low around 27. North northwest wind 5 to 13 mph becoming east southeast after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
Sunny, with a high near 54. East southeast wind 6 to 11 mph becoming west 13 to 18 mph in the morning. Winds could gust as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 26. West wind 6 to 14 mph becoming south in the evening. Winds could gust as high as 21 mph.
Monday
Partly sunny, with a high near 55. Light west wind becoming west northwest 5 to 9 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 28. North northwest wind 7 to 10 mph becoming east southeast after midnight.
Tuesday
Mostly cloudy, with a high near 57. East wind 7 to 14 mph becoming south southeast in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Mostly cloudy, with a high near 63. Breezy.
Wednesday Night
Mostly cloudy, with a low around 23. Breezy.
Thursday
Mostly cloudy, with a high near 45.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
Chinook MT
 48.6°N 109.23°W (Elev. 2408 ft)
10:42 pm MDT Mar 20, 2026
11pm MDT Mar 20, 2026-6pm MDT Mar 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