National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

73°F

23°C

Humidity 18%
Wind Speed W 9 G 16 mph
Barometer 30.08 in
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 17 Jun 8:55 pm MDT
Extended Forecast for

3 Miles SSW Deer Ridge CO

  • Tonight

    Tonight: Mostly clear, with a low around 43. West northwest wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Calm wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 15 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.

    Low: 50 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 78. Calm wind becoming north northwest around 6 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50. East southeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 16 mph.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 78. Breezy.

    High: 78 °F

    Sunny then
    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 48. Breezy.

    Low: 48 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after noon. Sunny, with a high near 73.

    High: 73 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

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

    Low: 46 °F

    Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 43. West northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 77. Calm wind becoming west northwest 5 to 9 mph in the morning. Winds could gust as high as 15 mph.
Thursday Night
Partly cloudy, with a low around 50. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Juneteenth
Mostly sunny, with a high near 78. Calm wind becoming north northwest around 6 mph in the afternoon. Winds could gust as high as 17 mph.
Friday Night
Partly cloudy, with a low around 50. East southeast wind around 6 mph becoming calm in the evening. Winds could gust as high as 16 mph.
Saturday
Sunny, with a high near 78. Breezy.
Saturday Night
Mostly clear, with a low around 48. Breezy.
Sunday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 73.
Sunday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46.
Monday
A slight chance of showers, then showers and thunderstorms likely after noon. Mostly sunny, with a high near 72.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 48.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Sunny, with a high near 79.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Deer Ridge CO
 40.35°N 105.63°W (Elev. 8373 ft)
Last Update:
12:46 pm MDT Jun 17, 2026
Forecast Valid:
9pm MDT Jun 17, 2026-6pm MDT Jun 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation