Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

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

Overcast

62°F

17°C

Humidity 49%
Wind Speed W 12 mph
Barometer 30.27 in
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 25 Sep 1:15 pm MDT
Extended Forecast for

2 Miles WSW Saint Marys Glacier CO

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a steady temperature around 42. West northwest wind 7 to 10 mph, with gusts as high as 16 mph.  Chance of precipitation is 60%.

    High: 42 °F

    Showers
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 9pm.  Partly cloudy, with a low around 37. Breezy, with a west northwest wind 11 to 16 mph increasing to 17 to 22 mph in the evening. Winds could gust as high as 34 mph.

    Low: 37 °F

    Breezy.
    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 50. Breezy, with a west northwest wind 16 to 21 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 33 mph.

    High: 50 °F

    Sunny and
    Breezy then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39. Light and variable wind becoming west 5 to 10 mph in the evening. Winds could gust as high as 16 mph.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 51. West wind 5 to 10 mph becoming light and variable  in the afternoon. Winds could gust as high as 17 mph.  Chance of precipitation is 20%.

    High: 51 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 46. Chance of precipitation is 70%.

    High: 46 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before midnight, then showers likely.  Mostly cloudy, with a low around 35.

    Low: 35 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, then showers and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 40.

    High: 40 °F

    Showers

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 42. West northwest wind 7 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 60%.
Tonight
A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 37. Breezy, with a west northwest wind 11 to 16 mph increasing to 17 to 22 mph in the evening. Winds could gust as high as 34 mph.
Saturday
Sunny, with a high near 50. Breezy, with a west northwest wind 16 to 21 mph decreasing to 5 to 10 mph in the afternoon. Winds could gust as high as 33 mph.
Saturday Night
Partly cloudy, with a low around 39. Light and variable wind becoming west 5 to 10 mph in the evening. Winds could gust as high as 16 mph.
Sunday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 51. West wind 5 to 10 mph becoming light and variable in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 40.
Monday
A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 46. Chance of precipitation is 70%.
Monday Night
Showers and possibly a thunderstorm before midnight, then showers likely. Mostly cloudy, with a low around 35.
Tuesday
Showers likely, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 40.
Tuesday Night
Rain showers likely before midnight, then rain and snow showers likely between midnight and 3am, then rain showers likely after 3am. Mostly cloudy, with a low around 35.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 43.
Wednesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 35.
Thursday
A slight chance of rain and snow showers. Mostly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Saint Marys Glacier CO
 39.82°N 105.66°W (Elev. 10981 ft)
12:46 pm MDT Sep 25, 2026
1pm MDT Sep 25, 2026-6pm MDT Oct 1, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database