Hazardous Coastal Conditions for the Mid-Atlantic; Storm System Approaching Southern Alaska

A Nor'easter will create hazardous marine and coastal conditions along the Mid-Atlantic coast through mid-week, with significant coastal flooding and beach erosion possible. Meanwhile, another strong storm system is forecast to bring high winds and heavy precipitation to portions of southern Alaska. Elsewhere, relatively benign weather is expected through the first half of the work week. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

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

Mostly Cloudy

64°F

18°C

Humidity 9%
Wind Speed Calm
Barometer 30.30 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Last update 18 Oct 4:55 pm MDT
Extended Forecast for

3 Miles E Arapahoe Peak CO

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. Light and variable wind becoming southwest around 6 mph after midnight.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of rain and snow showers after noon.  Mostly sunny, with a high near 48. West wind around 7 mph becoming east southeast in the afternoon.  Chance of precipitation is 20%.

    High: 48 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Light and variable wind becoming west 6 to 11 mph in the evening. Winds could gust as high as 20 mph.

    Low: 31 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon.  Mostly sunny, with a high near 49. West wind 8 to 13 mph becoming light and variable  in the afternoon. Winds could gust as high as 21 mph.

    High: 49 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 35. Calm wind becoming west 5 to 8 mph in the evening.

    Low: 35 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers likely after noon.  Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny
    then Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers.  Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 32. Light and variable wind becoming southwest around 6 mph after midnight.
Monday
A slight chance of rain and snow showers after noon. Mostly sunny, with a high near 48. West wind around 7 mph becoming east southeast in the afternoon. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 31. Light and variable wind becoming west 6 to 11 mph in the evening. Winds could gust as high as 20 mph.
Tuesday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 49. West wind 8 to 13 mph becoming light and variable in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 35. Calm wind becoming west 5 to 8 mph in the evening.
Wednesday
Mostly sunny, with a high near 52.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Showers likely after noon. Partly sunny, with a high near 52.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 36.
Friday
A chance of rain showers before 9am, then a chance of rain and snow showers. Partly sunny, with a high near 44.
Friday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 26. Breezy.
Saturday
A chance of snow showers. Partly sunny, with a high near 37. Breezy.
Saturday Night
A slight chance of snow showers. Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Arapahoe Peak CO
 40.02°N 105.59°W (Elev. 10997 ft)
12:46 pm MDT Oct 18, 2026
5pm MDT Oct 18, 2026-6pm MDT Oct 25, 2026
 
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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