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

USCRN SITE NEAR LEWISTOWN 42WSW (JRWM8)

Lat: 46.88472°NLon: 110.28944°WElev: 5045.0ft.

NA

24°F

-4°C

Humidity 63%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 13°F (-11°C)
Visibility NA
Last update 30 Dec 08:00 AM MST
Extended Forecast for

6 Miles WSW Windham MT

  • Today

    Today: Sunny, with a high near 48. West southwest wind 7 to 10 mph.

    High: 48 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 34. West southwest wind 13 to 15 mph, with gusts as high as 23 mph.

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 57. South southwest wind around 10 mph.

    High: 57 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Partly sunny, with a high near 51. Southwest wind 6 to 9 mph.

    High: 51 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 34. Southwest wind 7 to 10 mph.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 52. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 52 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. Southwest wind around 14 mph, with gusts as high as 21 mph.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain and snow after 11am. Partly sunny, with a high near 52.

    High: 52 °F

    Slight Chance
    Rain/Snow

Detailed Forecast

Today
Sunny, with a high near 48. West southwest wind 7 to 10 mph.
Tonight
Mostly clear, with a low around 34. West southwest wind 13 to 15 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 57. South southwest wind around 10 mph.
Wednesday Night
Partly cloudy, with a low around 33. West southwest wind 10 to 13 mph, with gusts as high as 20 mph.
New Year's Day
Partly sunny, with a high near 51. Southwest wind 6 to 9 mph.
Thursday Night
Mostly cloudy, with a low around 34. Southwest wind 7 to 10 mph.
Friday
Partly sunny, with a high near 52. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 36. Southwest wind around 14 mph, with gusts as high as 21 mph.
Saturday
A slight chance of rain and snow after 11am. Partly sunny, with a high near 52.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 45.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles WSW Windham MT
 47.07°N 110.27°W (Elev. 4918 ft)
Last Update:
7:57 am MST Dec 30, 2025
Forecast Valid:
9am 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