Weather Almanac: Downers Grove, IL 60515

🗓️ Historical norms for October 2025

October avg. precipitation
🌧️ 3.12"
October days below freezing
📉 ≈6.8 days
Average October lows ≈39.3°F
USDA Zone
6a
Annual extreme lows -10°F to -5°F
Last Spring Frost (36°F)
🌷 May 28
First Fall Frost (36°F)
🍂 Sep 23
Wed. October 1  

🌅 6:49 a.m.

H: ≈68.6°F

L: ≈44.2°F

🌇 6:33 p.m.

Thu. October 2  

🌅 6:50 a.m.

H: ≈68.1°F

L: ≈43.9°F

🌇 6:31 p.m.

Fri. October 3  

🌅 6:51 a.m.

H: ≈67.7°F

L: ≈43.5°F

🌇 6:29 p.m.

Sat. October 4  

🌅 6:52 a.m.

H: ≈67.3°F

L: ≈43.1°F

🌇 6:28 p.m.

Sun. October 5  

🌅 6:53 a.m.

H: ≈66.9°F

L: ≈42.8°F

🌇 6:26 p.m.

Mon. October 6 🌕

🌅 6:54 a.m.

H: ≈66.5°F

L: ≈42.4°F

🌇 6:24 p.m.

Tue. October 7  

🌅 6:55 a.m.

H: ≈66.1°F

L: ≈42.1°F

🌇 6:23 p.m.

Wed. October 8  

🌅 6:56 a.m.

H: ≈65.7°F

L: ≈41.7°F

🌇 6:21 p.m.

Thu. October 9  

🌅 6:58 a.m.

H: ≈65.3°F

L: ≈41.4°F

🌇 6:19 p.m.

Fri. October 10  

🌅 6:59 a.m.

H: ≈64.9°F

L: ≈41.1°F

🌇 6:18 p.m.

Sat. October 11  

🌅 7:00 a.m.

H: ≈64.5°F

L: ≈40.8°F

🌇 6:16 p.m.

Sun. October 12  

🌅 7:01 a.m.

H: ≈64.1°F

L: ≈40.4°F

🌇 6:14 p.m.

Mon. October 13 Columbus Day 🌗

🌅 7:02 a.m.

H: ≈63.7°F

L: ≈40.1°F

🌇 6:13 p.m.

Tue. October 14  

🌅 7:03 a.m.

H: ≈63.3°F

L: ≈39.8°F

🌇 6:11 p.m.

Wed. October 15  

🌅 7:04 a.m.

H: ≈62.9°F

L: ≈39.5°F

🌇 6:10 p.m.

Thu. October 16  

🌅 7:05 a.m.

H: ≈62.5°F

L: ≈39.2°F

🌇 6:08 p.m.

Fri. October 17  

🌅 7:07 a.m.

H: ≈62.1°F

L: ≈38.9°F

🌇 6:07 p.m.

Sat. October 18  

🌅 7:08 a.m.

H: ≈61.7°F

L: ≈38.6°F

🌇 6:05 p.m.

Sun. October 19  

🌅 7:09 a.m.

H: ≈61.3°F

L: ≈38.3°F

🌇 6:03 p.m.

Mon. October 20  

🌅 7:10 a.m.

H: ≈61.0°F

L: ≈38.1°F

🌇 6:02 p.m.

Tue. October 21 🌑

🌅 7:11 a.m.

H: ≈60.6°F

L: ≈37.8°F

🌇 6:00 p.m.

Wed. October 22  

🌅 7:12 a.m.

H: ≈60.2°F

L: ≈37.5°F

🌇 5:59 p.m.

Thu. October 23  

🌅 7:14 a.m.

H: ≈59.8°F

L: ≈37.2°F

🌇 5:58 p.m.

Fri. October 24  

🌅 7:15 a.m.

H: ≈59.4°F

L: ≈36.8°F

🌇 5:56 p.m.

Sat. October 25  

🌅 7:16 a.m.

H: ≈58.9°F

L: ≈36.5°F

🌇 5:55 p.m.

Sun. October 26  

🌅 7:17 a.m.

H: ≈58.5°F

L: ≈36.2°F

🌇 5:53 p.m.

Mon. October 27  

🌅 7:18 a.m.

H: ≈58.1°F

L: ≈35.9°F

🌇 5:52 p.m.

Tue. October 28  

🌅 7:20 a.m.

H: ≈57.7°F

L: ≈35.6°F

🌇 5:51 p.m.

Wed. October 29 🌓

🌅 7:21 a.m.

H: ≈57.3°F

L: ≈35.3°F

🌇 5:49 p.m.

Thu. October 30  

🌅 7:22 a.m.

H: ≈56.8°F

L: ≈34.9°F

🌇 5:48 p.m.

Fri. October 31 Halloween  

🌅 7:23 a.m.

H: ≈56.4°F

L: ≈34.6°F

🌇 5:47 p.m.


Temperature climatic data from weather station: LISLE-MORTON ARBORETUM (USC00115097)

Precipitation climatic data from weather station: GLEN ELLYN 4S (USC00113490)

Agricultural climatic data from weather station: WHEATON 3 SE (USC00119221)