Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Great Falls, Great Falls International Airport (KGTF)

Lat: 47.47333°NLon: 111.38222°WElev: 3675.0ft.

Clear

88°F

31°C

Humidity 15%
Wind Speed S 13 MPH
Barometer 29.7 in (1005.76 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 25 Sep 02:00 PM MDT
Extended Forecast for

3 Miles N Great Falls International Airport MT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 89. Southwest wind 15 to 18 mph, with gusts as high as 28 mph.

    High: 89 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 10pm.  Cloudy during the early evening, then gradual clearing, with a low around 45. Breezy, with a southwest wind 14 to 19 mph increasing to 20 to 25 mph in the evening. Winds could gust as high as 39 mph.

    Low: 45 °F

    Breezy.
    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 64. Breezy, with a west southwest wind 20 to 28 mph, with gusts as high as 37 mph.

    High: 64 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 37. West wind 6 to 11 mph becoming light and variable  in the evening. Winds could gust as high as 24 mph.

    Low: 37 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 64. Light north northeast wind.

    High: 64 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42. East northeast wind around 5 mph becoming calm  in the evening.

    Low: 42 °F

    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. Light and variable wind becoming southwest 6 to 11 mph in the evening.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 72. Breezy.

    High: 72 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 89. Southwest wind 15 to 18 mph, with gusts as high as 28 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Cloudy during the early evening, then gradual clearing, with a low around 45. Breezy, with a southwest wind 14 to 19 mph increasing to 20 to 25 mph in the evening. Winds could gust as high as 39 mph.
Saturday
Mostly sunny, with a high near 64. Breezy, with a west southwest wind 20 to 28 mph, with gusts as high as 37 mph.
Saturday Night
Mostly cloudy, with a low around 37. West wind 6 to 11 mph becoming light and variable in the evening. Winds could gust as high as 24 mph.
Sunday
Partly sunny, with a high near 64. Light north northeast wind.
Sunday Night
Mostly cloudy, with a low around 42. East northeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 44. Light and variable wind becoming southwest 6 to 11 mph in the evening.
Tuesday
Mostly sunny, with a high near 72. Breezy.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 71.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Great Falls International Airport MT
 47.53°N 111.38°W (Elev. 3399 ft)
12:31 pm MDT Sep 25, 2026
2pm MDT Sep 25, 2026-6pm MDT Oct 1, 2026
 
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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