Great Falls, Montana Weather Forecast
Today in Great Falls: moderate snow with a high near 54°F and a low around 34°F. Rain chance 100%. Rain chances peak at 46% on Wednesday. Cooling trend: highs fall from 54°F today to 42°F by Monday.
Forecast updated 2:05 AM MDT, Oct 23
Active Weather Alerts
7-Day Forecast for Great Falls
Today 10/23
100%
54°34°
Sat 10/24
45°28°
Sun 10/25
40°27°
Mon 10/26
42°28°
Tue 10/27
44%
44°32°
Wed 10/28
46%
40°31°
Thu 10/29
25%
37°27°
Next 24 Hours
| Now | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | Sat12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sky | | | |  |  | | | | | | | | | | | | | | | | | | | |
| Temp | 38° | 38° | 38° | 38° | 36° | 34° | 33° | 33° | 31° | 31° | 30° | 29° | 28° | 28° | 28° | 30° | 33° | 37° | 40° | 42° | 44° | 45° | 45° | 44° |
| Rain | 65% | 30% | 25% | 12% | 2% | 1% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Wind | WNW 11 | WNW 10 | WNW 9 | WNW 8 | W 7 | W 6 | W 5 | WSW 4 | WSW 4 | WSW 3 | WSW 3 | SSW 3 | SSW 3 | SSW 3 | SSW 3 | S 4 | SSE 4 | SSE 3 | SSE 3 | SSE 4 | SE 5 | SE 5 | ESE 5 | E 4 |
Growing Conditions
Growing degree days
2,575
since Apr 1, base 50°F
Rain, last 30 days
1.49 in
model analysis
Rain, year to date
17.53 in
since Jan 1
2-inch soil temperature
54°F
yesterday, daily average
Reference ET, last 7 days
0.83 in
FAO-56 grass reference
Through Oct 22. Season totals use model analysis for this point and update every morning.
Soil, ET and spray tools for Great Falls →
Current Stats & Observations
NWS Forecast
About Great Falls Weather
Great Falls sits at about 3,330 feet above sea level in Cascade County, Montana. About 65,131 people live in the Great Falls area. Official forecasts and warnings for the area come from the National Weather Service TFX office, and the nearest NEXRAD radar site is KTFX. The city is in USDA plant hardiness zone 4b, where the coldest winter night typically falls between -25 to -20°F. Over the past ten years the last spring freeze has come around Apr 30 and the first fall freeze around Oct 13.