Current conditions at
Great Falls, Great Falls International Airport (KGTF)
Lat: 47.47333°NLon: 111.38222°WElev: 3675.0ft.
Overcast
45°F
7°C
| Humidity | 70% |
| Wind Speed | SSW 10 MPH |
| Barometer | 30.03 in (1016.93 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 40°F (4°C) |
| Last update | 20 May 03:05 AM MDT |
Extended Forecast for
Sun Prairie MT
Overnight

Low: 42 °F
Mostly Cloudy
Wednesday
High: 57 °F
Chance
Showers then
ShowersWednesday Night
Low: 34 °F
Chance
Showers then
Mostly CloudyThursday
High: 62 °F
Slight Chance
Showers then
Partly SunnyThursday Night

Low: 36 °F
Partly Cloudy
Friday

High: 72 °F
Mostly Sunny
Friday Night

Low: 42 °F
Partly Cloudy
Saturday

High: 79 °F
Mostly Sunny
Saturday Night

Low: 47 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a steady temperature around 42. Southwest wind around 7 mph.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 57. West southwest wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 50 percent chance of showers, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 34. North wind 5 to 8 mph becoming west in the evening.
Thursday
A slight chance of showers between 10am and 11am. Partly sunny, with a high near 62. Northwest wind around 7 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 36. Northwest wind around 6 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 72. West southwest wind 3 to 5 mph.
Friday Night
Partly cloudy, with a low around 42. West wind around 5 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 79. Southwest wind 5 to 8 mph.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 50.
Memorial Day
Mostly sunny, with a high near 84.
Monday Night
A chance of rain. Mostly cloudy, with a low around 49.
Tuesday
A chance of rain and thunderstorms. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST
Point Forecast:
Sun Prairie MT
47.54°N 111.47°W (Elev. 3399 ft)
47.54°N 111.47°W (Elev. 3399 ft)
3:02 am MDT May 20, 2026
3am MDT May 20, 2026-6pm MDT May 26, 2026


