Weather Almanac: Arrowsmith, IL 61722

🗓️ Historical norms for September 2025

September avg. precipitation
🌧️ 2.89"
September days below freezing
📉 ≈0.0 days
Average September lows ≈51.6°F
USDA Zone
6a
Annual extreme lows -10°F to -5°F
Last Spring Frost (36°F)
🌷 May 7
First Fall Frost (36°F)
🍂 Sep 28
Mon. September 1 Labor Day  

🌅 6:22 a.m.

H: ≈81.6°F

L: ≈56.8°F

🌇 7:25 p.m.

Tue. September 2  

🌅 6:23 a.m.

H: ≈81.4°F

L: ≈56.5°F

🌇 7:24 p.m.

Wed. September 3  

🌅 6:24 a.m.

H: ≈81.2°F

L: ≈56.2°F

🌇 7:22 p.m.

Thu. September 4  

🌅 6:25 a.m.

H: ≈81.1°F

L: ≈55.9°F

🌇 7:20 p.m.

Fri. September 5  

🌅 6:26 a.m.

H: ≈80.9°F

L: ≈55.5°F

🌇 7:19 p.m.

Sat. September 6  

🌅 6:27 a.m.

H: ≈80.7°F

L: ≈55.2°F

🌇 7:17 p.m.

Sun. September 7 🌕

🌅 6:27 a.m.

H: ≈80.5°F

L: ≈54.9°F

🌇 7:16 p.m.

Mon. September 8  

🌅 6:28 a.m.

H: ≈80.2°F

L: ≈54.5°F

🌇 7:14 p.m.

Tue. September 9  

🌅 6:29 a.m.

H: ≈80.0°F

L: ≈54.1°F

🌇 7:12 p.m.

Wed. September 10  

🌅 6:30 a.m.

H: ≈79.8°F

L: ≈53.8°F

🌇 7:11 p.m.

Thu. September 11  

🌅 6:31 a.m.

H: ≈79.5°F

L: ≈53.4°F

🌇 7:09 p.m.

Fri. September 12  

🌅 6:32 a.m.

H: ≈79.3°F

L: ≈53.0°F

🌇 7:07 p.m.

Sat. September 13  

🌅 6:33 a.m.

H: ≈79.0°F

L: ≈52.6°F

🌇 7:06 p.m.

Sun. September 14 Holy Cross 🌗

🌅 6:34 a.m.

H: ≈78.7°F

L: ≈52.3°F

🌇 7:04 p.m.

Mon. September 15  

🌅 6:35 a.m.

H: ≈78.4°F

L: ≈51.9°F

🌇 7:02 p.m.

Tue. September 16  

🌅 6:36 a.m.

H: ≈78.1°F

L: ≈51.5°F

🌇 7:01 p.m.

Wed. September 17  

🌅 6:37 a.m.

H: ≈77.8°F

L: ≈51.1°F

🌇 6:59 p.m.

Thu. September 18  

🌅 6:38 a.m.

H: ≈77.5°F

L: ≈50.7°F

🌇 6:57 p.m.

Fri. September 19  

🌅 6:39 a.m.

H: ≈77.1°F

L: ≈50.3°F

🌇 6:56 p.m.

Sat. September 20  

🌅 6:40 a.m.

H: ≈76.8°F

L: ≈49.9°F

🌇 6:54 p.m.

Sun. September 21 🌑

🌅 6:41 a.m.

H: ≈76.5°F

L: ≈49.5°F

🌇 6:52 p.m.

Mon. September 22 Autumn Equinox  

🌅 6:42 a.m.

H: ≈76.1°F

L: ≈49.1°F

🌇 6:51 p.m.

Tue. September 23  

🌅 6:43 a.m.

H: ≈75.7°F

L: ≈48.7°F

🌇 6:49 p.m.

Wed. September 24  

🌅 6:44 a.m.

H: ≈75.4°F

L: ≈48.3°F

🌇 6:47 p.m.

Thu. September 25  

🌅 6:45 a.m.

H: ≈75.0°F

L: ≈48.0°F

🌇 6:46 p.m.

Fri. September 26  

🌅 6:46 a.m.

H: ≈74.6°F

L: ≈47.6°F

🌇 6:44 p.m.

Sat. September 27  

🌅 6:47 a.m.

H: ≈74.2°F

L: ≈47.2°F

🌇 6:42 p.m.

Sun. September 28  

🌅 6:48 a.m.

H: ≈73.8°F

L: ≈46.8°F

🌇 6:41 p.m.

Mon. September 29 🌓

🌅 6:49 a.m.

H: ≈73.4°F

L: ≈46.5°F

🌇 6:39 p.m.

Tue. September 30  

🌅 6:50 a.m.

H: ≈73.0°F

L: ≈46.1°F

🌇 6:37 p.m.


Temperature climatic data from weather station: SAYBROOK 2N (USC00117590)

Precipitation climatic data from weather station: SAYBROOK 2N (USC00117590)

Agricultural climatic data from weather station: FARMER CITY 3W (USC00112993)