Weather Almanac: Wheaton, IL 60187

🗓️ Historical norms for August 2025

July September

Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.

August avg. precipitation

🌧️ 4.18"

August days below freezing

📉 ≈0.0 days

Average August lows ≈60.0°F

USDA Zone

Annual extreme lows -15°F to -10°F

Last Spring Frost (36°F)

🌷 May 28

View full details

First Fall Frost (36°F)

🍂 Sep 23

View full details

Book Recommendations (ads!)

📚 Illinois, Indiana & Ohio Month-by-Month Gardening: What to Do Each Month to Have a Beautiful Garden All Year

📚 Grow Great Vegetables Illinois

📚 Midwest Gardener's Handbook, 2nd Edition: All You Need to Know to Plan, Plant & Maintain a Midwest Garden

F: Forecast

H: Normal High Temp

L: Normal Low Temp

Sunday

Monday

Tuesday

Wednesday

Thursday

Friday

Saturday

Fri. August 1

🌅 5:46 a.m.

F: 78°F / 58°F

H: ≈82.3°F

L: ≈61.3°F

🌇 8:10 p.m.

Sat. August 2

🌅 5:47 a.m.

F: 80°F / 60°F

H: ≈82.2°F

L: ≈61.3°F

🌇 8:09 p.m.

Sun. August 3

🌅 5:48 a.m.

F: 81°F / 62°F

H: ≈82.1°F

L: ≈61.2°F

🌇 8:07 p.m.

Mon. August 4

🌅 5:49 a.m.

F: 83°F / 65°F

H: ≈82.0°F

L: ≈61.2°F

🌇 8:06 p.m.

Tue. August 5

🌅 5:50 a.m.

F: 82°F / 65°F

H: ≈81.9°F

L: ≈61.2°F

🌇 8:05 p.m.

Wed. August 6

🌅 5:51 a.m.

F: 84°F / 67°F

H: ≈81.9°F

L: ≈61.1°F

🌇 8:04 p.m.

Thu. August 7

🌅 5:52 a.m.

H: ≈81.8°F

L: ≈61.1°F

🌇 8:02 p.m.

Fri. August 8

🌅 5:53 a.m.

H: ≈81.7°F

L: ≈61.0°F

🌇 8:01 p.m.

Sat. August 9

🌅 5:54 a.m.

H: ≈81.7°F

L: ≈61.0°F

🌇 8:00 p.m.

Sun. August 10

🌅 5:55 a.m.

H: ≈81.6°F

L: ≈60.9°F

🌇 7:59 p.m.

Mon. August 11

🌅 5:56 a.m.

H: ≈81.6°F

L: ≈60.9°F

🌇 7:57 p.m.

Tue. August 12

🌅 5:57 a.m.

H: ≈81.5°F

L: ≈60.8°F

🌇 7:56 p.m.

Wed. August 13

🌅 5:58 a.m.

H: ≈81.5°F

L: ≈60.7°F

🌇 7:54 p.m.

Thu. August 14

🌅 5:59 a.m.

H: ≈81.4°F

L: ≈60.6°F

🌇 7:53 p.m.

Fri. August 15

🌅 6:00 a.m.

H: ≈81.4°F

L: ≈60.5°F

🌇 7:52 p.m.

Sat. August 16

🌅 6:02 a.m.

H: ≈81.3°F

L: ≈60.4°F

🌇 7:50 p.m.

Sun. August 17

🌅 6:03 a.m.

H: ≈81.3°F

L: ≈60.3°F

🌇 7:49 p.m.

Mon. August 18

🌅 6:04 a.m.

H: ≈81.2°F

L: ≈60.2°F

🌇 7:47 p.m.

Tue. August 19

🌅 6:05 a.m.

H: ≈81.1°F

L: ≈60.0°F

🌇 7:46 p.m.

Wed. August 20

🌅 6:06 a.m.

H: ≈81.1°F

L: ≈59.9°F

🌇 7:44 p.m.

Thu. August 21

🌅 6:07 a.m.

H: ≈81.0°F

L: ≈59.7°F

🌇 7:43 p.m.

Fri. August 22

🌅 6:08 a.m.

H: ≈80.9°F

L: ≈59.5°F

🌇 7:41 p.m.

Sat. August 23

🌅 6:09 a.m.

H: ≈80.8°F

L: ≈59.3°F

🌇 7:39 p.m.

Sun. August 24

🌅 6:10 a.m.

H: ≈80.7°F

L: ≈59.1°F

🌇 7:38 p.m.

Mon. August 25

🌅 6:11 a.m.

H: ≈80.6°F

L: ≈58.9°F

🌇 7:36 p.m.

Tue. August 26

🌅 6:12 a.m.

H: ≈80.5°F

L: ≈58.7°F

🌇 7:35 p.m.

Wed. August 27

🌅 6:13 a.m.

H: ≈80.3°F

L: ≈58.4°F

🌇 7:33 p.m.

Thu. August 28

🌅 6:14 a.m.

H: ≈80.2°F

L: ≈58.1°F

🌇 7:31 p.m.

Fri. August 29

🌅 6:15 a.m.

H: ≈80.0°F

L: ≈57.8°F

🌇 7:30 p.m.

Sat. August 30

🌅 6:16 a.m.

H: ≈79.9°F

L: ≈57.5°F

🌇 7:28 p.m.

Sun. August 31

🌅 6:17 a.m.

H: ≈79.7°F

L: ≈57.2°F

🌇 7:26 p.m.

July September

Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sep. Oct. Nov. Dec.

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)