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

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

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

Fair

87°F

31°C

Humidity 17%
Wind Speed Calm
Barometer 30.01 in (1008.7 mb)
Dewpoint 37°F (3°C)
Visibility 8.00 mi
Heat Index84°F (29°C)
Last update 3 Sep 12:56 pm MDT
Extended Forecast for

Johnstown CO

  • This Afternoon

    This Afternoon: Sunny, with a high near 93. South southeast wind 7 to 9 mph, with gusts as high as 15 mph.

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. Southeast wind 5 to 8 mph becoming northwest after midnight.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 95. Light and variable wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 95 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61. South southeast wind 5 to 9 mph becoming light and variable. Winds could gust as high as 18 mph.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 94. Light and variable wind becoming north northeast 5 to 7 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 20%.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight. Partly cloudy, with a low around 62.

    Low: 62 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers then
    Mostly Cloudy

  • Labor Day

    Labor Day: A chance of showers and thunderstorms after noon. Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 93. South southeast wind 7 to 9 mph, with gusts as high as 15 mph.
Tonight
Mostly clear, with a low around 59. Southeast wind 5 to 8 mph becoming northwest after midnight.
Friday
Sunny, with a high near 95. Light and variable wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 15 mph.
Friday Night
Partly cloudy, with a low around 61. South southeast wind 5 to 9 mph becoming light and variable. Winds could gust as high as 18 mph.
Saturday
A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 94. Light and variable wind becoming north northeast 5 to 7 mph in the morning. Winds could gust as high as 16 mph. Chance of precipitation is 20%.
Saturday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 62.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92.
Sunday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 63.
Labor Day
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 91.
Monday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60.
Tuesday
Sunny, with a high near 90.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 60.
Wednesday
Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown CO
 40.33°N 104.9°W (Elev. 4783 ft)
Last Update:
12:46 pm MDT Sep 3, 2026
Forecast Valid:
1pm MDT Sep 3, 2026-6pm MDT Sep 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation