Great Falls, MT Weather Forecast
Local 7-day forecast
Partly Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Great Falls, MT in one place.
A slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 91. North northwest wind 3 to 9 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Great Falls, MT is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 11, 2026 10:28 PM MDT.
The active forecast window currently covers Jul 14 to Jul 18, 2026 for Great Falls, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 11, 2026 10:28 PM MDT
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Great Falls
Saturday looks like the warmest upcoming period in Great Falls at 92 degrees F.
Friday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Tuesday Night at about 3 to 10 mph ESE.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 11, 2026 10:28 PM MDT
- Coverage
- 5 days
- Time zone
- America/Denver
- Forecast office
- TFX
- Radar station
- KTFX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely. Mostly cloudy, with a low around 61. East southeast wind 3 to 10 mph.
A chance of rain showers before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. South southwest wind 2 to 6 mph.
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91.
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59.
Sunny, with a high near 89.
A slight chance of rain showers. Partly cloudy, with a low around 57.
Sunny, with a high near 92.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
91°F |
3 to 9 mph
NNW
|
|
Tuesday Night
Jul 14
|
Showers And Thunderstorms Likely
|
61°F |
3 to 10 mph
ESE
|
|
Wednesday
Jul 15
|
Chance Rain Showers
|
88°F |
2 to 6 mph
SSW
|
|
Wednesday Night
Jul 15
|
Chance Showers And Thunderstorms then Partly Cloudy
|
59°F |
3 to 8 mph
ESE
|
|
Thursday
Jul 16
|
Mostly Sunny then Chance Showers And Thunderstorms
|
91°F |
2 to 8 mph
SSW
|
|
Thursday Night
Jul 16
|
Chance Showers And Thunderstorms then Partly Cloudy
|
59°F |
5 to 10 mph
NNW
|
|
Friday
Jul 17
|
Sunny
|
89°F |
3 to 7 mph
W
|
|
Friday Night
Jul 17
|
Slight Chance Rain Showers
|
57°F |
5 to 9 mph
S
|
|
Saturday
Jul 18
|
Sunny
|
92°F |
3 to 7 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Great Falls.
