Severe Thunderstorms and Possible Flooding in the East; Extreme Heat in the West.

Scattered severe storms with wind damage, large hail, and a few tornadoes will be possible this afternoon and evening across much of the Mid Atlantic and Southeast. Heavy rain may cause instances of flash flooding from eastern Kentucky to southern New York. Out west, dangerous heat will develop through Saturday, with record-breaking temperatures expected. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

43°F

6°C

Humidity 83%
Wind Speed Calm
Barometer 30.49 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 30 May 8:35 am MDT
Extended Forecast for

3 Miles S LONG'S PEAK CO

  • Today

    Today: Showers likely and possibly a thunderstorm, mainly after noon.  Increasing clouds, with a high near 59. North northwest wind 7 to 11 mph, with gusts as high as 18 mph.  Chance of precipitation is 60%.

    High: 59 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight.  Mostly cloudy, then gradually becoming mostly clear, with a low around 39. North wind 5 to 7 mph becoming west after midnight.  Chance of precipitation is 20%.

    Low: 39 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 61. West wind 5 to 8 mph becoming north in the afternoon.

    High: 61 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 41. North wind 6 to 13 mph becoming west in the evening. Winds could gust as high as 21 mph.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 67. West wind 8 to 13 mph, with gusts as high as 22 mph.

    High: 67 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight.  Partly cloudy, with a low around 46. Chance of precipitation is 20%.

    Low: 46 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A slight chance of showers, then showers and possibly a thunderstorm after noon.  High near 63. Chance of precipitation is 90%.

    High: 63 °F

    Slight Chance
    Showers then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before midnight, then showers likely.  Mostly cloudy, with a low around 39. Breezy.

    Low: 39 °F

    Showers and
    Breezy

  • Tuesday

    Tuesday: Rain, possibly mixed with snow showers. Some thunder is also possible.  Cloudy, with a high near 44.

    High: 44 °F

    Rain/Snow

Detailed Forecast

Today
Showers likely and possibly a thunderstorm, mainly after noon. Increasing clouds, with a high near 59. North northwest wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Tonight
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 39. North wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 20%.
Saturday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 61. West wind 5 to 8 mph becoming north in the afternoon.
Saturday Night
Mostly clear, with a low around 41. North wind 6 to 13 mph becoming west in the evening. Winds could gust as high as 21 mph.
Sunday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67. West wind 8 to 13 mph, with gusts as high as 22 mph.
Sunday Night
A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 46. Chance of precipitation is 20%.
Monday
A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 63. Chance of precipitation is 90%.
Monday Night
Showers and possibly a thunderstorm before midnight, then showers likely. Mostly cloudy, with a low around 39. Breezy.
Tuesday
Rain, possibly mixed with snow showers. Some thunder is also possible. Cloudy, with a high near 44.
Tuesday Night
Rain likely, possibly mixed with snow showers, mainly before midnight. Some thunder is also possible. Mostly cloudy, with a low around 33.
Wednesday
Rain and snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 49.
Wednesday Night
A chance of rain and snow showers. Some thunder is also possible. Partly cloudy, with a low around 34.
Thursday
A chance of rain and snow showers. Some thunder is also possible. Partly sunny, with a high near 54. Breezy.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S LONG'S PEAK CO
 40.2°N 105.61°W (Elev. 10141 ft)
3:59 am MDT May 30, 2025
8am MDT May 30, 2025-6pm MDT Jun 5, 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