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

Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.

Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

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

Overcast

30°F

-1°C

Humidity 96%
Wind Speed Calm
Barometer 30.21 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 19 May 4:35 am MDT
Extended Forecast for

8 Miles W Grand Lake CO

  • Overnight

    Overnight: A 20 percent chance of snow showers. Mostly cloudy, with a low around 20. West southwest wind around 5 mph.

    Low: 20 °F

    Slight Chance
    Snow Showers

  • Tuesday

    Tuesday: A 30 percent chance of snow showers, mainly after 3pm. Some thunder is also possible. Increasing clouds, with a high near 37. Light and variable wind becoming west 5 to 8 mph in the morning. Winds could gust as high as 16 mph. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Partly Sunny
    then Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: A 40 percent chance of snow showers, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 25. Northwest wind 5 to 8 mph becoming southeast after midnight. Winds could gust as high as 15 mph. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow
    Showers

  • Wednesday

    Wednesday: A 40 percent chance of snow showers, mainly between 9am and 3pm. Some thunder is also possible. Partly sunny, with a high near 41. South wind 5 to 9 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Chance Snow
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. Northwest wind 5 to 8 mph becoming calm. Winds could gust as high as 17 mph.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of snow showers after noon. Some thunder is also possible. Partly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny
    then Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Snow showers likely, mainly before midnight. Some thunder is also possible. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.

    Low: 27 °F

    Snow Showers
    Likely

  • Friday

    Friday: A chance of snow showers. Some thunder is also possible. Partly sunny, with a high near 45.

    High: 45 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of snow showers. Mostly cloudy, with a low around 20. West southwest wind around 5 mph.
Tuesday
A 30 percent chance of snow showers, mainly after 3pm. Some thunder is also possible. Increasing clouds, with a high near 37. Light and variable wind becoming west 5 to 8 mph in the morning. Winds could gust as high as 16 mph. New snow accumulation of less than a half inch possible.
Tuesday Night
A 40 percent chance of snow showers, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 25. Northwest wind 5 to 8 mph becoming southeast after midnight. Winds could gust as high as 15 mph. New snow accumulation of less than a half inch possible.
Wednesday
A 40 percent chance of snow showers, mainly between 9am and 3pm. Some thunder is also possible. Partly sunny, with a high near 41. South wind 5 to 9 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around 23. Northwest wind 5 to 8 mph becoming calm. Winds could gust as high as 17 mph.
Thursday
A 50 percent chance of snow showers after noon. Some thunder is also possible. Partly sunny, with a high near 45.
Thursday Night
Snow showers likely, mainly before midnight. Some thunder is also possible. Mostly cloudy, with a low around 27. Chance of precipitation is 60%.
Friday
A chance of snow showers. Some thunder is also possible. Partly sunny, with a high near 45.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
A chance of snow showers between noon and 3pm, then a chance of rain showers after 3pm. Some thunder is also possible. Mostly sunny, with a high near 53.
Saturday Night
Partly cloudy, with a low around 32.
Sunday
Sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 35.
Memorial Day
Sunny, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles W Grand Lake CO
 40.26°N 106°W (Elev. 10896 ft)
Last Update:
12:46 am MDT May 19, 2026
Forecast Valid:
4am MDT May 19, 2026-6pm MDT May 25, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation