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

58°F

14°C

Humidity 51%
Wind Speed W 13 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 21 Mar 02:00 AM MDT
Extended Forecast for

Chinook MT

  • Overnight

    Overnight: A 20 percent chance of rain after 4am.  Mostly cloudy, with a low around 50. West wind 15 to 20 mph, with gusts as high as 28 mph.

    Low: 50 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A 40 percent chance of rain, mainly before 3pm.  Mostly cloudy, with a high near 56. 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 58. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.

    High: 58 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 28. North northwest wind 7 to 9 mph becoming east southeast after midnight.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 54. East wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 54 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of rain before midnight.  Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Overnight
A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 50. West wind 15 to 20 mph, with gusts as high as 28 mph.
Saturday
A 40 percent chance of rain, mainly before 3pm. Mostly cloudy, with a high near 56. 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 58. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 28. North northwest wind 7 to 9 mph becoming east southeast after midnight.
Tuesday
Mostly cloudy, with a high near 54. East wind 7 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
A chance of rain before midnight. Mostly cloudy, with a low around 35.
Wednesday
Mostly sunny, with a high near 60. Breezy.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 23. Blustery.
Thursday
Mostly sunny, with a high near 45.
Thursday Night
Partly cloudy, with a low around 19.
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)
2:52 am MDT Mar 21, 2026
3am MDT Mar 21, 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