Great Falls, Montana Weather
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Weather Forecast for Great Falls, Montana : Cascade County
Issued: 2:37 pm MDT May 11, 2025 Latitude: 47.5002354 Longitude: -111.3008083 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
70% chance of thunderstorms on This Afternoon 20% chance of thunderstorms on Tonight Mostly Sunny on Monday 50% chance of rain on Tuesday 50% chance of rain on Wednesday Rain on Thursday 10% chance of on Friday 20% chance of thunderstorms on Saturday 20% chance of thunderstorms on Sunday
High: 75°F Low: 49°F High: 73°F High: 62°F High: 64°F High: 59°F High: 65°F High: 66°F High: 63°F
Low: 46°F Low: 43°F Low: 43°F Low: 38°F Low: 43°F Low: 43°F  
Thunderstorms Thunderstorms Mostly Sunny Rain Rain Rain Partly Sunny Thunderstorms Thunderstorms
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Current Conditions at
GREAT FALLS - (KGTF)
54°
Mostly Cloudy
Thunderstorm Rain Mist
as of 3:06 PM MDST
Rel. Humidity: 87%
Dew Point: 50°F
Visibility: 2 1/2 Miles
Pressure: 29.71 in.
Flight Rule: IFR
Wind Data
37 MPH
Gust: 52 MPH
260° West
Cloud Level(s): Few at 3000ft, Broken at 7000ft, Broken at 9000ft
Current Conditions at
HELENA - (KHLN)
63°
Mostly Cloudy
Light Thunderstorm Rain
as of 3:11 PM MDST
Rel. Humidity: 63%
Dew Point: 50°F
Visibility: 3 Miles
Pressure: 29.74 in.
Flight Rule: MVFR
Wind Data
8 MPH
280° West
Cloud Level(s): Few at 2600ft, Scattered at 5500ft, Broken at 7000ft
Current Conditions at
CUTBANK - (KCTB)
72°
Mostly Cloudy
as of 2:56 PM MDST
Rel. Humidity: 26%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.68 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 21 MPH
170° South
Cloud Level(s): Scattered at 9500ft, Broken at 12000ft
70% chance of thunderstorms This Afternoon This Afternoon... Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Partly sunny, with a steady temperature around 75. South southeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
20% chance of thunderstorms Tonight Tonight... A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Some of the storms could be severe. Partly cloudy, with a low around 49. Northeast wind 5 to 8 mph becoming south southwest after midnight. Chance of precipitation is 20%.
Mostly Sunny on Monday Monday... Mostly sunny, with a high near 73. Southwest wind 9 to 14 mph increasing to 16 to 21 mph in the morning. Winds could gust as high as 36 mph.
50% chance of rain Monday Night Monday Night... A 50 percent chance of showers. Cloudy, with a low around 46. Southwest wind 7 to 16 mph, with gusts as high as 28 mph.
50% chance of rain Tuesday Tuesday... A 50 percent chance of showers. Mostly cloudy, with a high near 62. West southwest wind 6 to 10 mph becoming north northwest in the afternoon.
30% chance of rain Tuesday Night Tuesday Night... A 30 percent chance of showers. Mostly cloudy, with a low around 43. North northwest wind 5 to 10 mph becoming west after midnight.
50% chance of rain Wednesday Wednesday... A 50 percent chance of showers. Mostly cloudy, with a high near 64. West wind 5 to 11 mph, with gusts as high as 20 mph.
20% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 43. West wind 9 to 11 mph, with gusts as high as 18 mph.
Rain on Thursday Thursday... Showers likely, mainly before noon. Mostly cloudy, with a high near 59.
Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 38.
10% chance of Friday Friday... A slight chance of showers. Partly sunny, with a high near 65.
20% chance of rain Friday Night Friday Night... A chance of showers. Mostly cloudy, with a low around 43.
20% chance of thunderstorms Saturday Saturday... A chance of showers and thunderstorms. Partly sunny, with a high near 66.
20% chance of rain Saturday Night Saturday Night... A chance of showers. Mostly cloudy, with a low around 43.
20% chance of thunderstorms Sunday Sunday... A chance of showers and thunderstorms. Partly sunny, with a high near 63.
Current Radar Image


Sun Almanac for Great Falls, Montana
Sunrise: 05:52 AM
Sunset: 8:51 PM
Civil Sunrise:05:16 AM
Civil Sunset: 9:27 PM
Nautical Sunrise: 04:30 AM
Nautical Sunset: 10:13 PM
Astro Sunrise: 03:34 AM
Astro Sunset: 11:09 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.