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

Severe Thunderstorms for Mid-Atlantic and Northeast; Typhoon Approaching Guam

A cold front will sweep eastward today accompanied by strong to severe thunderstorms for the mid-Atlantic and Northeast today. In the wake of this cold front, autumn like temperatures and gusty winds from the Plains, Mississippi Valley, Great Lakes to most of the eastern seaboard. Fire weather conditions for lower Mississippi Valley into portions of California. For Guam, a typhoon is approaching. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Fair

34°F

1°C

Humidity 37%
Wind Speed SE 3 mph
Barometer 30.72 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 16 Oct 10:35 pm MDT
Extended Forecast for

2 Miles W Saint Marys Glacier CO

  • Tonight

    Tonight: Clear, with a low around 25. West northwest wind around 11 mph, with gusts as high as 21 mph.

    Low: 25 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 44. West northwest wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28. West wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 28 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 43. West wind 5 to 13 mph becoming east in the afternoon. Winds could gust as high as 22 mph.

    High: 43 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 30. East wind around 7 mph becoming west after midnight.

    Low: 30 °F

    Mostly Cloudy

  • Monday

    Monday: A 40 percent chance of snow showers after noon. Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny
    then Chance
    Snow Showers

  • Monday Night

    Monday Night: A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 30.

    Low: 30 °F

    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Tuesday

    Tuesday: A slight chance of snow showers after noon. Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 25. West northwest wind around 11 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 44. West northwest wind 8 to 13 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 28. West wind 8 to 13 mph, with gusts as high as 23 mph.
Sunday
Mostly sunny, with a high near 43. West wind 5 to 13 mph becoming east in the afternoon. Winds could gust as high as 22 mph.
Sunday Night
Mostly cloudy, with a low around 30. East wind around 7 mph becoming west after midnight.
Monday
A 40 percent chance of snow showers after noon. Partly sunny, with a high near 41.
Monday Night
A 20 percent chance of snow showers before midnight. Partly cloudy, with a low around 30.
Tuesday
A slight chance of snow showers after noon. Mostly sunny, with a high near 41.
Tuesday Night
Partly cloudy, with a low around 31.
Wednesday
Mostly sunny, with a high near 42.
Wednesday Night
Partly cloudy, with a low around 33.
Thursday
A chance of rain and snow showers. Mostly sunny, with a high near 42.
Thursday Night
A chance of snow showers. Mostly cloudy, with a low around 29.
Friday
A chance of snow showers. Partly sunny, with a high near 36. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles W Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
Last Update:
12:46 pm MDT Oct 16, 2026
Forecast Valid:
10pm MDT Oct 16, 2026-6pm MDT Oct 23, 2026
 
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