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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

HARLEM (HRLM)

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

NA

35°F

2°C

Humidity 68%
Wind Speed WNW 1 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 30 Dec 11:00 AM MST
Extended Forecast for

Chinook MT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 36. West wind around 7 mph becoming south.

    High: 36 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 18. South southeast wind 6 to 11 mph becoming west northwest in the evening.

    Low: 18 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 31. West northwest wind around 7 mph becoming east in the afternoon.

    High: 31 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 13. East wind 5 to 7 mph becoming west after midnight.

    Low: 13 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 29. West wind around 6 mph becoming calm in the morning.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 16. East southeast wind around 5 mph.

    Low: 16 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 32. East southeast wind 6 to 8 mph.

    High: 32 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 19. South southeast wind 7 to 9 mph.

    Low: 19 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 39.

    High: 39 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 36. West wind around 7 mph becoming south.
Tonight
Partly cloudy, with a low around 18. South southeast wind 6 to 11 mph becoming west northwest in the evening.
Wednesday
Mostly sunny, with a high near 31. West northwest wind around 7 mph becoming east in the afternoon.
Wednesday Night
Partly cloudy, with a low around 13. East wind 5 to 7 mph becoming west after midnight.
New Year's Day
Mostly sunny, with a high near 29. West wind around 6 mph becoming calm in the morning.
Thursday Night
Mostly cloudy, with a low around 16. East southeast wind around 5 mph.
Friday
Mostly cloudy, with a high near 32. East southeast wind 6 to 8 mph.
Friday Night
Mostly cloudy, with a low around 19. South southeast wind 7 to 9 mph.
Saturday
Mostly cloudy, with a high near 39.
Saturday Night
Mostly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 37.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chinook MT
 48.59°N 109.26°W (Elev. 2408 ft)
Last Update:
10:12 am MST Dec 30, 2025
Forecast Valid:
12pm MST Dec 30, 2025-6pm MST Jan 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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