Heavy Rainfall for Portions of the West and Southern Plains; Dangerous Heat for the Northwest

A front will bring chances for showers and thunderstorms over the Central Rockies and Southern Plains. Heavy rains are also possible in southern Arizona. A dangerous heat wave continues across the Pacific Northwest. Hot, dry conditions and lightning may cause new fire starts across the Cascades. Conversely, a cold front will bring unseasonably cool temperatures to much of the lower 48. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Mostly Cloudy

53°F

12°C

Humidity 91%
Wind Speed Calm
Barometer 30.46 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 24 Aug 8:55 pm MDT
Extended Forecast for

3 Miles NNW Berthoud Pass CO

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before midnight, then a chance of showers.  Mostly cloudy, with a steady temperature around 47. West southwest wind 6 to 8 mph.  Chance of precipitation is 70%.

    Low: 47 °F

    Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm, mainly before 3pm, then showers and thunderstorms after 3pm.  High near 48. West northwest wind 5 to 9 mph becoming east in the afternoon. Winds could gust as high as 16 mph.  Chance of precipitation is 90%.

    High: 48 °F

    Showers
    Likely then
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 43. East southeast wind 5 to 8 mph becoming south southwest after midnight. Winds could gust as high as 16 mph.  Chance of precipitation is 70%.

    Low: 43 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers and possibly a thunderstorm after noon.  High near 49. Southwest wind 5 to 7 mph, with gusts as high as 16 mph.  Chance of precipitation is 90%.

    High: 49 °F

    Chance
    Showers then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm.  Low around 44. West wind 6 to 9 mph, with gusts as high as 15 mph.  Chance of precipitation is 80%.

    Low: 44 °F

    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, then showers and possibly a thunderstorm after noon.  High near 49. Chance of precipitation is 90%.

    High: 49 °F

    Chance
    Showers then
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm.  Low around 44. Chance of precipitation is 80%.

    Low: 44 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: Showers likely, then showers and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 48.

    High: 48 °F

    Showers
    Likely then
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Showers
    Likely

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a steady temperature around 47. West southwest wind 6 to 8 mph. Chance of precipitation is 70%.
Monday
Showers and possibly a thunderstorm, mainly before 3pm, then showers and thunderstorms after 3pm. High near 48. West northwest wind 5 to 9 mph becoming east in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 90%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 43. East southeast wind 5 to 8 mph becoming south southwest after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 70%.
Tuesday
A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers and possibly a thunderstorm after noon. High near 49. Southwest wind 5 to 7 mph, with gusts as high as 16 mph. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 44. West wind 6 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 80%.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 49. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 44. Chance of precipitation is 80%.
Thursday
Showers likely, then showers and possibly a thunderstorm after noon. Mostly cloudy, with a high near 48.
Thursday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 43.
Friday
A chance of showers, then showers and thunderstorms likely after noon. Mostly cloudy, with a high near 49.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 42.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 50.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 42.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Berthoud Pass CO
 39.84°N 105.78°W (Elev. 11253 ft)
3:03 pm MDT Aug 24, 2025
9pm MDT Aug 24, 2025-6pm MDT Aug 31, 2025
 
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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