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

41°F

5°C

Humidity 85%
Wind Speed NW 2 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 11 Oct 01:00 AM MDT
Extended Forecast for

4 Miles NNE Harlem MT

  • Overnight

    Overnight: Rain. Steady temperature around 35. North northeast wind around 9 mph. Chance of precipitation is 90%.

    Low: 35 °F

    Rain

  • Sunday

    Sunday: Rain, possibly mixed with snow. High near 40. Northeast wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 40 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Snow, possibly mixed with rain, becoming all snow after 5am. Low around 26. East northeast wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 26 °F

    Rain/Snow

  • Columbus Day

    Columbus Day: Rain and snow, mainly before 5pm. High near 42. North northeast wind 3 to 7 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 42 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 23. Light south southeast wind.

    Low: 23 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 25. West southwest wind around 5 mph becoming light and variable in the evening.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 57. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 57 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Overnight
Rain. Steady temperature around 35. North northeast wind around 9 mph. Chance of precipitation is 90%.
Sunday
Rain, possibly mixed with snow. High near 40. Northeast wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Sunday Night
Snow, possibly mixed with rain, becoming all snow after 5am. Low around 26. East northeast wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Columbus Day
Rain and snow, mainly before 5pm. High near 42. North northeast wind 3 to 7 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday Night
Mostly cloudy, with a low around 23. Light south southeast wind.
Tuesday
Mostly sunny, with a high near 50. Calm wind becoming west 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 25. West southwest wind around 5 mph becoming light and variable in the evening.
Wednesday
Sunny, with a high near 57. Calm wind becoming south 5 to 9 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Partly cloudy, with a low around 27.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 31.
Saturday
Sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Harlem MT
 48.59°N 108.75°W (Elev. 2598 ft)
Last Update:
12:32 am MDT Oct 11, 2026
Forecast Valid:
1am MDT Oct 11, 2026-6pm MDT Oct 17, 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