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

Hazardous Weather Conditions

Current conditions at

Fort Collins/Loveland - Northern Colorado Regional Airport (KFNL)

Lat: 40.45°NLon: 105.02°WElev: 5016ft.

Fair

69°F

21°C

Humidity 68%
Wind Speed NE 5 mph
Barometer 30.27 in (1017.9 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 22 Aug 7:56 am MDT
Extended Forecast for

Johnstown CO

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Increasing clouds, with a high near 92. North northeast wind 5 to 9 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.

    High: 92 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 61. Southeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 17 mph.

    Low: 61 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 93. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 61. South wind 5 to 7 mph becoming light and variable after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers then
    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Increasing clouds, with a high near 92. North northeast wind 5 to 9 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 61. Southeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 17 mph.
Sunday
A 50 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 93. Calm wind becoming south 5 to 7 mph in the afternoon.
Sunday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 61. South wind 5 to 7 mph becoming light and variable after midnight. Winds could gust as high as 16 mph. Chance of precipitation is 30%.
Monday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92. Light and variable wind becoming northwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Monday Night
A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90.
Tuesday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58.
Wednesday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89.
Wednesday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Friday
Sunny, with a high near 94.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown CO
 40.33°N 104.9°W (Elev. 4783 ft)
Last Update:
2:15 am MDT Aug 22, 2026
Forecast Valid:
8am MDT Aug 22, 2026-6pm MDT Aug 28, 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