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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

HARLEM (HRLM)

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

NA

46°F

8°C

Humidity 76%
Wind Speed W 3 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 10 Oct 07:00 AM MDT
Extended Forecast for

Chinook MT

  • Today

    Today: Rain likely, mainly between 1pm and 5pm. Cloudy, with a high near 51. West northwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.

    High: 51 °F

    Slight Chance
    Rain then
    Rain Likely

  • Tonight

    Tonight: Rain likely before 3am, then rain, possibly mixed with snow. Low around 30. North wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 30 °F

    Rain Likely
    then
    Rain/Snow

  • Sunday

    Sunday: Rain and snow. High near 40. North northeast wind 10 to 14 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Snow, possibly mixed with rain. Low around 27. East northeast wind 8 to 11 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Rain/Snow

  • Columbus Day

    Columbus Day: Snow likely, possibly mixed with rain before 3pm, then a chance of rain. Cloudy, with a high near 44. East northeast wind 5 to 7 mph becoming south southeast in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24. South southeast wind around 5 mph becoming calm after midnight.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 54. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 54 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26. Light south wind.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

Detailed Forecast

Today
Rain likely, mainly between 1pm and 5pm. Cloudy, with a high near 51. West northwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Tonight
Rain likely before 3am, then rain, possibly mixed with snow. Low around 30. North wind 10 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
Rain and snow. High near 40. North northeast wind 10 to 14 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow, possibly mixed with rain. Low around 27. East northeast wind 8 to 11 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Columbus Day
Snow likely, possibly mixed with rain before 3pm, then a chance of rain. Cloudy, with a high near 44. East northeast wind 5 to 7 mph becoming south southeast in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday Night
Mostly cloudy, with a low around 24. South southeast wind around 5 mph becoming calm after midnight.
Tuesday
Mostly sunny, with a high near 54. Calm wind becoming west southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 26. Light south wind.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Partly cloudy, with a low around 31.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 29.
Friday
Sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chinook MT
 48.6°N 109.23°W (Elev. 2408 ft)
Last Update:
6:57 am MDT Oct 10, 2026
Forecast Valid:
8am MDT Oct 10, 2026-6pm MDT Oct 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation