Weather Almanac: Sheridan, MT 59749

🗓️ Historical norms for September 2025

September avg. precipitation
🌧️ 0.95"
September days below freezing
📉 ≈1.0 days
Average September lows ≈40.5°F
USDA Zone
5a
Annual extreme lows -20°F to -15°F
Last Spring Frost (36°F)
🌷 Always
First Fall Frost (36°F)
🍂 Always
Mon. September 1 Labor Day  

🌅 6:50 a.m.

H: ≈76.0°F

L: ≈45.0°F

🌇 8:05 p.m.

Tue. September 2  

🌅 6:51 a.m.

H: ≈75.6°F

L: ≈44.8°F

🌇 8:03 p.m.

Wed. September 3  

🌅 6:52 a.m.

H: ≈75.2°F

L: ≈44.6°F

🌇 8:01 p.m.

Thu. September 4  

🌅 6:54 a.m.

H: ≈74.7°F

L: ≈44.3°F

🌇 7:59 p.m.

Fri. September 5  

🌅 6:55 a.m.

H: ≈74.3°F

L: ≈44.1°F

🌇 7:57 p.m.

Sat. September 6  

🌅 6:56 a.m.

H: ≈73.8°F

L: ≈43.8°F

🌇 7:55 p.m.

Sun. September 7 🌕

🌅 6:57 a.m.

H: ≈73.3°F

L: ≈43.5°F

🌇 7:53 p.m.

Mon. September 8  

🌅 6:58 a.m.

H: ≈72.8°F

L: ≈43.3°F

🌇 7:52 p.m.

Tue. September 9  

🌅 7:00 a.m.

H: ≈72.2°F

L: ≈43.0°F

🌇 7:50 p.m.

Wed. September 10  

🌅 7:01 a.m.

H: ≈71.7°F

L: ≈42.6°F

🌇 7:48 p.m.

Thu. September 11  

🌅 7:02 a.m.

H: ≈71.2°F

L: ≈42.3°F

🌇 7:46 p.m.

Fri. September 12  

🌅 7:03 a.m.

H: ≈70.6°F

L: ≈42.0°F

🌇 7:44 p.m.

Sat. September 13  

🌅 7:04 a.m.

H: ≈70.0°F

L: ≈41.6°F

🌇 7:42 p.m.

Sun. September 14 Holy Cross 🌗

🌅 7:06 a.m.

H: ≈69.5°F

L: ≈41.3°F

🌇 7:40 p.m.

Mon. September 15  

🌅 7:07 a.m.

H: ≈68.9°F

L: ≈40.9°F

🌇 7:38 p.m.

Tue. September 16  

🌅 7:08 a.m.

H: ≈68.3°F

L: ≈40.5°F

🌇 7:36 p.m.

Wed. September 17  

🌅 7:09 a.m.

H: ≈67.8°F

L: ≈40.2°F

🌇 7:34 p.m.

Thu. September 18  

🌅 7:11 a.m.

H: ≈67.2°F

L: ≈39.8°F

🌇 7:32 p.m.

Fri. September 19  

🌅 7:12 a.m.

H: ≈66.6°F

L: ≈39.4°F

🌇 7:30 p.m.

Sat. September 20  

🌅 7:13 a.m.

H: ≈66.1°F

L: ≈39.0°F

🌇 7:28 p.m.

Sun. September 21 🌑

🌅 7:14 a.m.

H: ≈65.5°F

L: ≈38.6°F

🌇 7:27 p.m.

Mon. September 22 Autumn Equinox  

🌅 7:15 a.m.

H: ≈65.0°F

L: ≈38.2°F

🌇 7:25 p.m.

Tue. September 23  

🌅 7:17 a.m.

H: ≈64.4°F

L: ≈37.8°F

🌇 7:23 p.m.

Wed. September 24  

🌅 7:18 a.m.

H: ≈63.9°F

L: ≈37.4°F

🌇 7:21 p.m.

Thu. September 25  

🌅 7:19 a.m.

H: ≈63.4°F

L: ≈37.1°F

🌇 7:19 p.m.

Fri. September 26  

🌅 7:20 a.m.

H: ≈62.9°F

L: ≈36.7°F

🌇 7:17 p.m.

Sat. September 27  

🌅 7:22 a.m.

H: ≈62.4°F

L: ≈36.3°F

🌇 7:15 p.m.

Sun. September 28  

🌅 7:23 a.m.

H: ≈62.0°F

L: ≈35.9°F

🌇 7:13 p.m.

Mon. September 29 🌓

🌅 7:24 a.m.

H: ≈61.5°F

L: ≈35.6°F

🌇 7:11 p.m.

Tue. September 30  

🌅 7:25 a.m.

H: ≈61.1°F

L: ≈35.2°F

🌇 7:09 p.m.


Temperature climatic data from weather station: LAURIN 2NE (USC00244896)

Precipitation climatic data from weather station: ALDER RUBY DAM (USC00240115)

Agricultural climatic data from weather station: VIRGINIA CITY (USC00248597)