Unsettled Weather in the Eastern U.S. through Memorial Day

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

69°F

21°C

Humidity 17%
Wind Speed SW 7 mph
Barometer 30.24 in
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 25 May 12:35 pm MDT
Extended Forecast for

Saint Marys Glacier CO

  • Memorial Day

    Memorial Day: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm.  Mostly cloudy, with a temperature falling to around 47 by 3pm. South southeast wind 7 to 9 mph.  Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers before 9pm.  Mostly cloudy, with a low around 37. South southeast wind around 9 mph becoming southwest in the evening. Winds could gust as high as 20 mph.

    Low: 37 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Rain likely, possibly mixed with snow showers after noon. Some thunder is also possible.  Mostly cloudy, with a high near 49. South southwest wind 8 to 14 mph becoming southeast in the afternoon. Winds could gust as high as 29 mph.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 49 °F

    Partly Sunny
    then
    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight.  Mostly cloudy, with a low around 36. Southeast wind 6 to 9 mph becoming west southwest after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 70%.

    Low: 36 °F

    Showers
    Likely then
    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain and snow showers before noon, then rain showers. Some thunder is also possible.  High near 47. West southwest wind 7 to 13 mph becoming east southeast in the morning. Winds could gust as high as 22 mph.  Chance of precipitation is 90%.

    High: 47 °F

    Chance
    Rain/Snow
    then Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight.  Mostly cloudy, with a low around 38. Chance of precipitation is 50%.

    Low: 38 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 53. Breezy.

    High: 53 °F

    Mostly Sunny
    then Chance
    T-storms and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 39.

    Low: 39 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 53. Breezy.

    High: 53 °F

    Sunny then
    Chance
    T-storms and
    Breezy

Detailed Forecast

Memorial Day
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a temperature falling to around 47 by 3pm. South southeast wind 7 to 9 mph. Chance of precipitation is 60%.
Tonight
A 30 percent chance of showers before 9pm. Mostly cloudy, with a low around 37. South southeast wind around 9 mph becoming southwest in the evening. Winds could gust as high as 20 mph.
Tuesday
Rain likely, possibly mixed with snow showers after noon. Some thunder is also possible. Mostly cloudy, with a high near 49. South southwest wind 8 to 14 mph becoming southeast in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tuesday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Mostly cloudy, with a low around 36. Southeast wind 6 to 9 mph becoming west southwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 70%.
Wednesday
A chance of rain and snow showers before noon, then rain showers. Some thunder is also possible. High near 47. West southwest wind 7 to 13 mph becoming east southeast in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 90%.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
Thursday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 53. Breezy.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 39.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 53. Breezy.
Friday Night
A chance of rain showers before 3am, then a slight chance of rain and snow showers. Some thunder is also possible. Partly cloudy, with a low around 36.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 52.
Saturday Night
A slight chance of rain and snow showers. Some thunder is also possible. Partly cloudy, with a low around 38.
Sunday
Rain and snow showers likely. Some thunder is also possible. Partly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys Glacier CO
 39.82°N 105.66°W (Elev. 10981 ft)
2:41 am MDT May 25, 2026
12pm MDT May 25, 2026-6pm MDT May 31, 2026
 
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Additional Resources

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