Great Falls, MT Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Great Falls, MT in one place.
Sunny, with a high near 41. Southwest wind 3 to 7 mph.
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: Oct 11, 2026 10:59 PM MDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Great Falls, MT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 11, 2026 10:59 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 69 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 23 degrees F.
The strongest winds are forecast for Saturday at about 20 to 23 mph SW.
The forecast from Oct 13 through Oct 18 stays mostly dry.
Forecast Details
- Last updated
- Oct 11, 2026 10:59 PM MDT
- Coverage
- 6 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
Mostly clear, with a low around 23. South southwest wind 1 to 7 mph.
Sunny, with a high near 50. South southwest wind around 9 mph, with gusts as high as 20 mph.
Partly cloudy, with a low around 29. Southwest wind around 8 mph.
Sunny, with a high near 53. West southwest wind around 5 mph.
Mostly clear, with a low around 31.
Sunny, with a high near 63.
Mostly clear, with a low around 40.
Sunny, with a high near 69.
Partly cloudy, with a low around 41.
Mostly sunny, with a high near 66.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
41°F |
3 to 7 mph
SW
|
|
Tuesday Night
Oct 13
|
Mostly Clear
|
23°F |
1 to 7 mph
SSW
|
|
Wednesday
Oct 14
|
Sunny
|
50°F |
9 mph
SSW
|
|
Wednesday Night
Oct 14
|
Partly Cloudy
|
29°F |
8 mph
SW
|
|
Thursday
Oct 15
|
Sunny
|
53°F |
5 mph
WSW
|
|
Thursday Night
Oct 15
|
Mostly Clear
|
31°F |
0 to 5 mph
S
|
|
Friday
Oct 16
|
Sunny
|
63°F |
7 to 12 mph
SSW
|
|
Friday Night
Oct 16
|
Mostly Clear
|
40°F |
9 to 21 mph
SSW
|
|
Saturday
Oct 17
|
Sunny
|
69°F |
20 to 23 mph
SW
|
|
Saturday Night
Oct 17
|
Partly Cloudy
|
41°F |
15 mph
SW
|
|
Sunday
Oct 18
|
Mostly Sunny
|
66°F |
13 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Great Falls.
