Thunderstorms and Heavy Rainfall in the Mid-Atlantic; Fire Weather Concerns in the West

Thunderstorms are expected to bring heavy rain and potential significant flash and urban flooding to the Mid-Atlantic on Thursday, especially along the I-95 urban corridor. Dry conditions, gusty winds, and isolated dry thunderstorms will continue to bring a critical fire weather threat to the northwestern Great Basin into the interior Northwest through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

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

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

Fair

68°F

20°C

Humidity 65%
Wind Speed E 9 mph
Barometer 30.30 in (1019.7 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 30 Jul 10:56 pm MDT
Extended Forecast for

Johnstown CO

  • Tonight

    Tonight: A 40 percent chance of showers, mainly before midnight.  Partly cloudy, with a low around 57. South southeast wind 5 to 7 mph becoming north after midnight.

    Low: 57 °F

    Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny, with a high near 84. Southeast wind 5 to 13 mph, with gusts as high as 22 mph.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms before 9pm.  Mostly cloudy, with a low around 55. Southeast wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 21 mph.

    Low: 55 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 88. North wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 88 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55. South wind 5 to 10 mph becoming light and variable  after midnight. Winds could gust as high as 20 mph.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
A 40 percent chance of showers, mainly before midnight. Partly cloudy, with a low around 57. South southeast wind 5 to 7 mph becoming north after midnight.
Thursday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 84. Southeast wind 5 to 13 mph, with gusts as high as 22 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 55. Southeast wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 21 mph.
Friday
A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. North wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 55. South wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Sunny, with a high near 91.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 94.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny and hot, with a high near 97.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
Johnstown CO
 40.33°N 104.9°W (Elev. 4783 ft)
3:03 pm MDT Jul 30, 2025
11pm MDT Jul 30, 2025-6pm MDT Aug 6, 2025
 
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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