Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

78°F

26°C

Humidity 15%
Wind Speed NW 6 mph
Barometer 30.33 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 25 Jul 3:15 pm MDT
Extended Forecast for

3 Miles WNW Berthoud Falls CO

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms, mainly before 5pm.  Patchy smoke. Partly sunny, with a steady temperature around 54. West southwest wind around 7 mph.

    High: 54 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 7pm.  Patchy smoke before 9pm. Partly cloudy, with a low around 42. South southwest wind 8 to 10 mph, with gusts as high as 16 mph.

    Low: 42 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon.  Increasing clouds, with a high near 57. West southwest wind 7 to 9 mph, with gusts as high as 15 mph.  Chance of precipitation is 30%.

    High: 57 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, then gradually becoming clear, with a low around 41. Southwest wind around 10 mph, with gusts as high as 16 mph.

    Low: 41 °F

    Decreasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 61. Southwest wind 6 to 11 mph becoming north in the afternoon. Winds could gust as high as 18 mph.

    High: 61 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 58.

    High: 58 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms, mainly before 5pm. Patchy smoke. Partly sunny, with a steady temperature around 54. West southwest wind around 7 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 7pm. Patchy smoke before 9pm. Partly cloudy, with a low around 42. South southwest wind 8 to 10 mph, with gusts as high as 16 mph.
Saturday
A slight chance of showers between 11am and noon, then a chance of showers and thunderstorms after noon. Increasing clouds, with a high near 57. West southwest wind 7 to 9 mph, with gusts as high as 15 mph. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, then gradually becoming clear, with a low around 41. Southwest wind around 10 mph, with gusts as high as 16 mph.
Sunday
Mostly sunny, with a high near 61. Southwest wind 6 to 11 mph becoming north in the afternoon. Winds could gust as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 45.
Monday
A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 61.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
A chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 58.
Tuesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 43.
Wednesday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 54.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 42.
Thursday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Berthoud Falls CO
 39.79°N 105.86°W (Elev. 12247 ft)
2:30 pm MDT Jul 25, 2025
3pm MDT Jul 25, 2025-6pm MDT Jul 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