Heat Expands for Center of the Nation; Severe Thunderstorms for Plains and Upper Midwest

Dangerous heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest. Critical fire weather for portions of the Intermountain West. Risk for severe thunderstorms and flash flooding across the Upper Midwest/Great Lakes, Ohio Valley, and portions of the mid-Atlantic. Active monsoonal moisture fuels thunderstorms over the Southwest. Hurricane Fausto in the Pacific, should weaken Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

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

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

3 Miles WNW Saint Marys Glacier CO

  • Today

    Today: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then showers and thunderstorms likely after 3pm.  Partly sunny, with a high near 64. Northwest wind 6 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 17 mph.  Chance of precipitation is 70%.

    High: 64 °F

    Slight Chance
    Showers then
    T-storms
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 50. East southeast wind 7 to 9 mph becoming northwest in the evening. Winds could gust as high as 17 mph.  Chance of precipitation is 40%.

    Low: 50 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: A chance of showers, then showers and thunderstorms likely after noon.  Increasing clouds, with a high near 61. South southeast wind 6 to 8 mph becoming northwest in the morning.  Chance of precipitation is 70%.

    High: 61 °F

    Chance
    Showers then
    T-storms
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 48. West southwest wind 6 to 9 mph becoming south in the evening. Winds could gust as high as 16 mph.  Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm after noon.  High near 60. West wind 6 to 8 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph.  Chance of precipitation is 80%.

    High: 60 °F

    Mostly Sunny
    then T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before midnight.  Mostly cloudy, with a low around 47. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after noon.  High near 60. Chance of precipitation is 80%.

    High: 60 °F

    Mostly Sunny
    then T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms after noon.  Partly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then showers and thunderstorms likely after 3pm. Partly sunny, with a high near 64. Northwest wind 6 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 70%.
Tonight
A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. East southeast wind 7 to 9 mph becoming northwest in the evening. Winds could gust as high as 17 mph. Chance of precipitation is 40%.
Monday
A chance of showers, then showers and thunderstorms likely after noon. Increasing clouds, with a high near 61. South southeast wind 6 to 8 mph becoming northwest in the morning. Chance of precipitation is 70%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 48. West southwest wind 6 to 9 mph becoming south in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 60%.
Tuesday
Showers and possibly a thunderstorm after noon. High near 60. West wind 6 to 8 mph becoming northeast in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm before midnight. Mostly cloudy, with a low around 47. Chance of precipitation is 60%.
Wednesday
Showers and possibly a thunderstorm after noon. High near 60. Chance of precipitation is 80%.
Wednesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 46.
Thursday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 60.
Thursday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 46.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Saint Marys Glacier CO
 39.84°N 105.69°W (Elev. 12507 ft)
3:11 am MDT Jul 26, 2026
8am MDT Jul 26, 2026-6pm MDT Aug 1, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database