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

Hazardous Weather Conditions

Current conditions at

Boulder Municipal Airport (KBDU)

Lat: 40.04°NLon: 105.23°WElev: 5288ft.

Fair

77°F

25°C

Humidity 26%
Wind Speed SW 12 G 17 mph
Barometer 30.16 in
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 18 Aug 12:15 am MDT
Extended Forecast for

Jamestown CO

  • Overnight

    Overnight: Mostly clear, with a low around 58. West wind around 8 mph.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79. West wind 6 to 8 mph becoming north northeast in the afternoon.

    High: 79 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 56. Light and variable wind becoming west around 6 mph. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76. Calm wind becoming north around 6 mph in the afternoon.

    High: 76 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 56. Light and variable wind. Chance of precipitation is 30%.

    Low: 56 °F

    Chance
    Showers then
    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.

    High: 76 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59.

    Low: 59 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.

    High: 80 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 58. West wind around 8 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79. West wind 6 to 8 mph becoming north northeast in the afternoon.
Tuesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 56. Light and variable wind becoming west around 6 mph. Chance of precipitation is 40%.
Wednesday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76. Calm wind becoming north around 6 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 56. Light and variable wind. Chance of precipitation is 30%.
Thursday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
Thursday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 60.
Saturday
Showers likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 79.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Sunday
Showers and possibly a thunderstorm. Partly sunny, with a high near 79.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 58.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jamestown CO
 40.12°N 105.4°W (Elev. 7664 ft)
Last Update:
12:46 pm MDT Aug 17, 2026
Forecast Valid:
12am MDT Aug 18, 2026-6pm MDT Aug 24, 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