Weather Almanac: Great Falls, MT 59405

🗓️ Historical norms for October 2025

October avg. precipitation
🌧️ 0.92"
October days below freezing
📉 ≈10.0 days
Average October lows ≈35.3°F
USDA Zone
4b
Annual extreme lows -25°F to -20°F
Last Spring Frost (36°F)
🌷 Jun 6
First Fall Frost (36°F)
🍂 Sep 11
Wed. October 1  

🌅 7:24 a.m.

H: ≈64.2°F

L: ≈38.0°F

🌇 7:03 p.m.

Thu. October 2  

🌅 7:25 a.m.

H: ≈63.9°F

L: ≈37.8°F

🌇 7:01 p.m.

Fri. October 3  

🌅 7:27 a.m.

H: ≈63.5°F

L: ≈37.5°F

🌇 6:59 p.m.

Sat. October 4  

🌅 7:28 a.m.

H: ≈63.2°F

L: ≈37.3°F

🌇 6:57 p.m.

Sun. October 5  

🌅 7:30 a.m.

H: ≈62.9°F

L: ≈37.1°F

🌇 6:55 p.m.

Mon. October 6 🌕

🌅 7:31 a.m.

H: ≈62.6°F

L: ≈36.9°F

🌇 6:53 p.m.

Tue. October 7  

🌅 7:32 a.m.

H: ≈62.4°F

L: ≈36.7°F

🌇 6:51 p.m.

Wed. October 8  

🌅 7:34 a.m.

H: ≈62.1°F

L: ≈36.5°F

🌇 6:49 p.m.

Thu. October 9  

🌅 7:35 a.m.

H: ≈61.9°F

L: ≈36.3°F

🌇 6:47 p.m.

Fri. October 10  

🌅 7:36 a.m.

H: ≈61.7°F

L: ≈36.2°F

🌇 6:46 p.m.

Sat. October 11  

🌅 7:38 a.m.

H: ≈61.4°F

L: ≈36.0°F

🌇 6:44 p.m.

Sun. October 12  

🌅 7:39 a.m.

H: ≈61.2°F

L: ≈35.9°F

🌇 6:42 p.m.

Mon. October 13 Columbus Day 🌗

🌅 7:41 a.m.

H: ≈61.0°F

L: ≈35.7°F

🌇 6:40 p.m.

Tue. October 14  

🌅 7:42 a.m.

H: ≈60.8°F

L: ≈35.6°F

🌇 6:38 p.m.

Wed. October 15  

🌅 7:44 a.m.

H: ≈60.6°F

L: ≈35.5°F

🌇 6:36 p.m.

Thu. October 16  

🌅 7:45 a.m.

H: ≈60.3°F

L: ≈35.3°F

🌇 6:34 p.m.

Fri. October 17  

🌅 7:46 a.m.

H: ≈60.1°F

L: ≈35.2°F

🌇 6:32 p.m.

Sat. October 18  

🌅 7:48 a.m.

H: ≈59.9°F

L: ≈35.1°F

🌇 6:31 p.m.

Sun. October 19  

🌅 7:49 a.m.

H: ≈59.6°F

L: ≈34.9°F

🌇 6:29 p.m.

Mon. October 20  

🌅 7:51 a.m.

H: ≈59.4°F

L: ≈34.8°F

🌇 6:27 p.m.

Tue. October 21 🌑

🌅 7:52 a.m.

H: ≈59.1°F

L: ≈34.6°F

🌇 6:25 p.m.

Wed. October 22  

🌅 7:54 a.m.

H: ≈58.8°F

L: ≈34.5°F

🌇 6:23 p.m.

Thu. October 23  

🌅 7:55 a.m.

H: ≈58.5°F

L: ≈34.3°F

🌇 6:22 p.m.

Fri. October 24  

🌅 7:57 a.m.

H: ≈58.2°F

L: ≈34.1°F

🌇 6:20 p.m.

Sat. October 25  

🌅 7:58 a.m.

H: ≈57.8°F

L: ≈33.9°F

🌇 6:18 p.m.

Sun. October 26  

🌅 8:00 a.m.

H: ≈57.4°F

L: ≈33.7°F

🌇 6:17 p.m.

Mon. October 27  

🌅 8:01 a.m.

H: ≈57.0°F

L: ≈33.5°F

🌇 6:15 p.m.

Tue. October 28  

🌅 8:03 a.m.

H: ≈56.6°F

L: ≈33.2°F

🌇 6:13 p.m.

Wed. October 29 🌓

🌅 8:04 a.m.

H: ≈56.2°F

L: ≈33.0°F

🌇 6:12 p.m.

Thu. October 30  

🌅 8:06 a.m.

H: ≈55.7°F

L: ≈32.7°F

🌇 6:10 p.m.

Fri. October 31 Halloween  

🌅 8:07 a.m.

H: ≈55.2°F

L: ≈32.4°F

🌇 6:09 p.m.


Temperature climatic data from weather station: GREAT FALLS 16ST (USC00243749)

Precipitation climatic data from weather station: GREAT FALLS 16ST (USC00243749)

Agricultural climatic data from weather station: GREAT FALLS WFO (USC00243753)