Weather Almanac: East Glacier Park, MT 59434

🗓️ Historical norms for September 2025

September avg. precipitation
🌧️ 2.01"
September days below freezing
📉 ≈5.0 days
Average September lows ≈39.3°F
USDA Zone
4b
Annual extreme lows -25°F to -20°F
Last Spring Frost (36°F)
🌷 Always
First Fall Frost (36°F)
🍂 Always
Mon. September 1 Labor Day  

🌅 6:51 a.m.

H: ≈70.0°F

L: ≈43.0°F

🌇 8:15 p.m.

Tue. September 2  

🌅 6:53 a.m.

H: ≈69.6°F

L: ≈42.7°F

🌇 8:13 p.m.

Wed. September 3  

🌅 6:54 a.m.

H: ≈69.2°F

L: ≈42.5°F

🌇 8:11 p.m.

Thu. September 4  

🌅 6:56 a.m.

H: ≈68.8°F

L: ≈42.3°F

🌇 8:09 p.m.

Fri. September 5  

🌅 6:57 a.m.

H: ≈68.4°F

L: ≈42.1°F

🌇 8:07 p.m.

Sat. September 6  

🌅 6:58 a.m.

H: ≈68.0°F

L: ≈41.9°F

🌇 8:04 p.m.

Sun. September 7 🌕

🌅 7:00 a.m.

H: ≈67.5°F

L: ≈41.6°F

🌇 8:02 p.m.

Mon. September 8  

🌅 7:01 a.m.

H: ≈67.1°F

L: ≈41.4°F

🌇 8:00 p.m.

Tue. September 9  

🌅 7:03 a.m.

H: ≈66.7°F

L: ≈41.1°F

🌇 7:58 p.m.

Wed. September 10  

🌅 7:04 a.m.

H: ≈66.2°F

L: ≈40.9°F

🌇 7:56 p.m.

Thu. September 11  

🌅 7:05 a.m.

H: ≈65.8°F

L: ≈40.6°F

🌇 7:54 p.m.

Fri. September 12  

🌅 7:07 a.m.

H: ≈65.3°F

L: ≈40.4°F

🌇 7:52 p.m.

Sat. September 13  

🌅 7:08 a.m.

H: ≈64.9°F

L: ≈40.1°F

🌇 7:50 p.m.

Sun. September 14 Holy Cross 🌗

🌅 7:10 a.m.

H: ≈64.4°F

L: ≈39.8°F

🌇 7:48 p.m.

Mon. September 15  

🌅 7:11 a.m.

H: ≈64.0°F

L: ≈39.5°F

🌇 7:46 p.m.

Tue. September 16  

🌅 7:12 a.m.

H: ≈63.5°F

L: ≈39.3°F

🌇 7:43 p.m.

Wed. September 17  

🌅 7:14 a.m.

H: ≈63.1°F

L: ≈39.0°F

🌇 7:41 p.m.

Thu. September 18  

🌅 7:15 a.m.

H: ≈62.7°F

L: ≈38.7°F

🌇 7:39 p.m.

Fri. September 19  

🌅 7:17 a.m.

H: ≈62.2°F

L: ≈38.4°F

🌇 7:37 p.m.

Sat. September 20  

🌅 7:18 a.m.

H: ≈61.8°F

L: ≈38.1°F

🌇 7:35 p.m.

Sun. September 21 🌑

🌅 7:20 a.m.

H: ≈61.3°F

L: ≈37.8°F

🌇 7:33 p.m.

Mon. September 22 Autumn Equinox  

🌅 7:21 a.m.

H: ≈60.9°F

L: ≈37.5°F

🌇 7:31 p.m.

Tue. September 23  

🌅 7:22 a.m.

H: ≈60.5°F

L: ≈37.2°F

🌇 7:29 p.m.

Wed. September 24  

🌅 7:24 a.m.

H: ≈60.1°F

L: ≈37.0°F

🌇 7:26 p.m.

Thu. September 25  

🌅 7:25 a.m.

H: ≈59.7°F

L: ≈36.7°F

🌇 7:24 p.m.

Fri. September 26  

🌅 7:27 a.m.

H: ≈59.2°F

L: ≈36.4°F

🌇 7:22 p.m.

Sat. September 27  

🌅 7:28 a.m.

H: ≈58.8°F

L: ≈36.1°F

🌇 7:20 p.m.

Sun. September 28  

🌅 7:30 a.m.

H: ≈58.4°F

L: ≈35.9°F

🌇 7:18 p.m.

Mon. September 29 🌓

🌅 7:31 a.m.

H: ≈58.1°F

L: ≈35.6°F

🌇 7:16 p.m.

Tue. September 30  

🌅 7:32 a.m.

H: ≈57.7°F

L: ≈35.3°F

🌇 7:14 p.m.


Temperature climatic data from weather station: ST. MARY 1 SSW (USW00004130)

Precipitation climatic data from weather station: ST. MARY 1 SSW (USW00004130)

Agricultural climatic data from weather station: BABB 6 NE (USC00240392)