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

Significant Flood Threat Continues For South-Central U.S.

A widespread and significant flood risk continues across the south-central U.S. from repeated rounds of intense rain and strong to severe thunderstorms. Flash flood watches are in effect for large part of the ArkLaTex. Today's concern extends from the Louisiana and extreme Upper Texas Gulf Coast to northeastern Texas and southeastern Oklahoma before shifting to all of eastern Texas on Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Granby-Grand County Airport (KGNB)

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

Fair

44°F

7°C

Humidity 81%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 18 May 8:55 am MDT
Extended Forecast for

Grand Lake CO

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 59. Calm wind becoming northeast 5 to 7 mph in the afternoon.

    Chance
    T-storms

    High: 59 °F

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 33. East northeast wind around 6 mph becoming calm in the evening.

    Chance
    T-storms then
    Mostly Cloudy

    Low: 33 °F

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 9am. Partly sunny, with a high near 61. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 50%.

    Slight Chance
    T-storms then
    Chance
    T-storms

    High: 61 °F

  • Wednesday
    Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 36. South wind around 6 mph becoming calm in the evening.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 36 °F

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67. Calm wind becoming south southwest 5 to 8 mph in the morning. Winds could gust as high as 18 mph.

    Sunny then
    Slight Chance
    T-storms

    High: 67 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 38.

    Partly Cloudy

    Low: 38 °F

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 66.

    Partly Sunny
    then Chance
    Showers

    High: 66 °F

  • Friday
    Night

    Friday Night: A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 37.

    Slight Chance
    T-storms then
    Partly Cloudy

    Low: 37 °F

  • Saturday

    Saturday: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 65.

    Mostly Sunny
    then Chance
    T-storms

    High: 65 °F

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after noon. Mostly cloudy, with a high near 59. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 33. East northeast wind around 6 mph becoming calm in the evening.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 9am. Partly sunny, with a high near 61. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 50%.
Wednesday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 36. South wind around 6 mph becoming calm in the evening.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67. Calm wind becoming south southwest 5 to 8 mph in the morning. Winds could gust as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 38.
Friday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 66.
Friday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 37.
Saturday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 65.
Saturday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 37.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 32.
Monday
Sunny, with a high near 63.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Grand Lake CO
 40.25°N 105.82°W (Elev. 8386 ft)
Last Update:
6:55 am MDT May 18, 2021
Forecast Valid:
9am MDT May 18, 2021-6pm MDT May 24, 2021
 
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