Dangerous Heat Expands; Heavy Rainfall Threats; Fire Weather Concerns for the West

The heat will increase and expand across the Central Plains, Mississippi Valley, Southeast and into the Eastern U.S. through the week as high pressure builds across the eastern two-thirds of the country. On the northern periphery of this heat, the threat for severe thunderstorms and heavy rainfall across the northern Plains and upper Midwest through Tuesday. Critical Fire Weather for the west. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

80°F

27°C

Humidity 22%
Wind Speed W 8 mph
Barometer 30.29 in
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 21 Jul 3:35 pm MDT
Extended Forecast for

Guanella Pass CO

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 64. Southwest wind around 7 mph.  Chance of precipitation is 60%.

    High: 64 °F

    Showers
    Likely

  • Tonight

    Tonight: A 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 41. Southwest wind 6 to 8 mph becoming northwest in the evening.  Chance of precipitation is 40%.

    Low: 41 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm after noon.  High near 61. West wind around 8 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%.

    High: 61 °F

    Mostly Sunny
    then T-storms

  • 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 40. West northwest wind 6 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%.

    Low: 40 °F

    Showers
    Likely then
    Mostly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after noon.  High near 59. West northwest wind 7 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 21 mph.  Chance of precipitation is 80%.

    High: 59 °F

    Partly Sunny
    then T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight.  Mostly cloudy, with a low around 39. Chance of precipitation is 60%.

    Low: 39 °F

    Showers
    Likely then
    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then showers and possibly a thunderstorm after noon.  High near 59. Chance of precipitation is 90%.

    High: 59 °F

    Slight Chance
    Showers then
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 38.

    Low: 38 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 63.

    High: 63 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 64. Southwest wind around 7 mph. Chance of precipitation is 60%.
Tonight
A 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 41. Southwest wind 6 to 8 mph becoming northwest in the evening. Chance of precipitation is 40%.
Tuesday
Showers and possibly a thunderstorm after noon. High near 61. West wind around 8 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Mostly cloudy, with a low around 40. West northwest wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Wednesday
Showers and possibly a thunderstorm after noon. High near 59. West northwest wind 7 to 10 mph becoming northeast in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%.
Wednesday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Thursday
A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 59. Chance of precipitation is 90%.
Thursday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 38.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 39.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
Guanella Pass CO
 39.6°N 105.72°W (Elev. 11752 ft)
2:10 pm MDT Jul 21, 2025
3pm MDT Jul 21, 2025-6pm MDT Jul 27, 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