Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

FLATTOP MTN. (FTMM8)

Lat: 48.80225°NLon: 113.85713°WElev: 6300.0ft.

-9°F

-23°C

Humidity	80%
Wind Speed	NA NA MPH
Barometer	NA
Dewpoint	-13°F (-25°C)
Visibility	NA
Last update	28 Dec 03:00 AM MST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

16 Miles W St Mary MT

Today
High: 4 °F
Mostly Sunny
then Patchy
Blowing Snow
Tonight
Low: 4 °F⇑
Mostly Cloudy
and Breezy
Monday
High: 13 °F
Breezy.
Slight Chance
Snow then
Mostly Cloudy
Monday Night
Low: 13 °F
Mostly Cloudy
Tuesday
High: 19 °F
Partly Sunny
Tuesday Night
Low: 16 °F
Mostly Cloudy
Wednesday
High: 22 °F
Partly Sunny
Wednesday Night
Low: 16 °F
Mostly Cloudy
New Year's Day
High: 23 °F
Mostly Cloudy

Detailed Forecast

Today

Patchy blowing snow between 2pm and 3pm. Mostly sunny and cold, with a high near 4. Wind chill values as low as -30. Southwest wind 14 to 20 mph, with gusts as high as 28 mph.

Tonight

Mostly cloudy, with a temperature rising to around 8 by 3am. Wind chill values as low as -20. Breezy, with a southwest wind around 23 mph, with gusts as high as 32 mph.

Monday

A slight chance of snow between 8am and noon. Mostly cloudy, with a high near 13. Wind chill values as low as -10. Breezy, with a southwest wind 20 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.

Monday Night

Mostly cloudy, with a low around 13. Wind chill values as low as -5. West southwest wind 14 to 21 mph, with gusts as high as 29 mph.

Tuesday

Partly sunny, with a high near 19. West southwest wind 14 to 17 mph, with gusts as high as 23 mph.

Tuesday Night

Mostly cloudy, with a low around 16. West southwest wind around 17 mph, with gusts as high as 23 mph.

Wednesday

Partly sunny, with a high near 22. West southwest wind 14 to 17 mph, with gusts as high as 21 mph.

Wednesday Night

Mostly cloudy, with a low around 16. West southwest wind around 15 mph, with gusts as high as 18 mph.

New Year's Day

Mostly cloudy, with a high near 23.