Weather Almanac: White Sulphur Springs, MT 59645

🗓️ Historical norms for September 2026

September avg. precipitation
🌧️ 1.12"
September days below freezing
📉 ≈4.9 days
Average September lows 36°F – 40°F
USDA Zone
4b
Annual extreme lows -25°F to -20°F
Last Spring Frost (36°F)
🌷 Always
First Fall Frost (36°F)
🍂 Always
Tue. September 1  

🌅 6:44 a.m.

H: 67°F – 86°F

L: 37°F – 49°F

🌇 8:03 p.m.

Wed. September 2  

🌅 6:45 a.m.

H: 66°F – 85°F

L: 36°F – 49°F

🌇 8:01 p.m.

Thu. September 3  

🌅 6:46 a.m.

H: 66°F – 85°F

L: 36°F – 48°F

🌇 7:59 p.m.

Fri. September 4  

🌅 6:48 a.m.

H: 65°F – 84°F

L: 36°F – 48°F

🌇 7:57 p.m.

Sat. September 5  

🌅 6:49 a.m.

H: 64°F – 84°F

L: 35°F – 48°F

🌇 7:55 p.m.

Sun. September 6  

🌅 6:50 a.m.

H: 64°F – 84°F

L: 35°F – 48°F

🌇 7:53 p.m.

Mon. September 7 Labor Day  

🌅 6:51 a.m.

H: 63°F – 84°F

L: 35°F – 47°F

🌇 7:51 p.m.

Tue. September 8  

🌅 6:53 a.m.

H: 63°F – 83°F

L: 34°F – 47°F

🌇 7:49 p.m.

Wed. September 9  

🌅 6:54 a.m.

H: 62°F – 83°F

L: 34°F – 47°F

🌇 7:47 p.m.

Thu. September 10  

🌅 6:55 a.m.

H: 62°F – 83°F

L: 34°F – 46°F

🌇 7:45 p.m.

Fri. September 11  

🌅 6:57 a.m.

H: 61°F – 82°F

L: 33°F – 46°F

🌇 7:43 p.m.

Sat. September 12  

🌅 6:58 a.m.

H: 61°F – 82°F

L: 33°F – 46°F

🌇 7:41 p.m.

Sun. September 13  

🌅 6:59 a.m.

H: 60°F – 81°F

L: 33°F – 46°F

🌇 7:39 p.m.

Mon. September 14 Holy Cross  

🌅 7:00 a.m.

H: 60°F – 81°F

L: 32°F – 45°F

🌇 7:37 p.m.

Tue. September 15  

🌅 7:02 a.m.

H: 59°F – 81°F

L: 32°F – 45°F

🌇 7:35 p.m.

Wed. September 16  

🌅 7:03 a.m.

H: 59°F – 80°F

L: 32°F – 45°F

🌇 7:33 p.m.

Thu. September 17  

🌅 7:04 a.m.

H: 58°F – 80°F

L: 31°F – 44°F

🌇 7:31 p.m.

Fri. September 18  

🌅 7:06 a.m.

H: 58°F – 80°F

L: 31°F – 44°F

🌇 7:29 p.m.

Sat. September 19  

🌅 7:07 a.m.

H: 57°F – 79°F

L: 31°F – 44°F

🌇 7:27 p.m.

Sun. September 20  

🌅 7:08 a.m.

H: 57°F – 79°F

L: 30°F – 44°F

🌇 7:25 p.m.

Mon. September 21  

🌅 7:10 a.m.

H: 56°F – 79°F

L: 30°F – 43°F

🌇 7:23 p.m.

Tue. September 22 Autumn Equinox  

🌅 7:11 a.m.

H: 56°F – 78°F

L: 29°F – 43°F

🌇 7:21 p.m.

Wed. September 23  

🌅 7:12 a.m.

H: 55°F – 78°F

L: 29°F – 43°F

🌇 7:19 p.m.

Thu. September 24  

🌅 7:13 a.m.

H: 55°F – 78°F

L: 29°F – 43°F

🌇 7:17 p.m.

Fri. September 25  

🌅 7:15 a.m.

H: 54°F – 77°F

L: 28°F – 42°F

🌇 7:15 p.m.

Sat. September 26 🌕

🌅 7:16 a.m.

H: 54°F – 77°F

L: 28°F – 42°F

🌇 7:13 p.m.

Sun. September 27  

🌅 7:17 a.m.

H: 53°F – 76°F

L: 27°F – 42°F

🌇 7:11 p.m.

Mon. September 28  

🌅 7:19 a.m.

H: 53°F – 76°F

L: 27°F – 42°F

🌇 7:09 p.m.

Tue. September 29  

🌅 7:20 a.m.

H: 52°F – 76°F

L: 27°F – 41°F

🌇 7:07 p.m.

Wed. September 30  

🌅 7:21 a.m.

H: 52°F – 75°F

L: 26°F – 41°F

🌇 7:05 p.m.


Temperature climatic data from weather station: WHITE SULPHUR SPRNGS 2 (USC00248930)

Precipitation climatic data from weather station: FT LOGAN 4 ESE (USC00243157)

Agricultural climatic data from weather station: WHITE SULPHUR SPRNGS 2 (USC00248930)