Weather Almanac: Berwyn, IL 60402

🗓️ Historical norms for May 2026

May avg. precipitation
🌧️ 4.13"
May days below freezing
📉 ≈0.1 days
Average May lows 48°F – 55°F
USDA Zone
6a
Annual extreme lows -10°F to -5°F
Last Spring Frost (36°F)
🌷 Apr 30
First Fall Frost (36°F)
🍂 Oct 12
Fri. May 1 🌕

🌅 5:47 a.m.

H: 55°F – 76°F

L: 39°F – 55°F

🌇 7:49 p.m.

Sat. May 2  

🌅 5:46 a.m.

H: 55°F – 76°F

L: 40°F – 55°F

🌇 7:50 p.m.

Sun. May 3  

🌅 5:44 a.m.

H: 56°F – 76°F

L: 40°F – 55°F

🌇 7:51 p.m.

Mon. May 4  

🌅 5:43 a.m.

H: 56°F – 77°F

L: 40°F – 56°F

🌇 7:52 p.m.

Tue. May 5  

🌅 5:42 a.m.

H: 56°F – 77°F

L: 41°F – 56°F

🌇 7:54 p.m.

Wed. May 6  

🌅 5:41 a.m.

H: 57°F – 77°F

L: 41°F – 56°F

🌇 7:55 p.m.

Thu. May 7  

🌅 5:39 a.m.

H: 57°F – 78°F

L: 41°F – 56°F

🌇 7:56 p.m.

Fri. May 8  

🌅 5:38 a.m.

H: 57°F – 78°F

L: 42°F – 57°F

🌇 7:57 p.m.

Sat. May 9 🌗

🌅 5:37 a.m.

H: 58°F – 78°F

L: 42°F – 57°F

🌇 7:58 p.m.

Sun. May 10  

🌅 5:36 a.m.

H: 58°F – 79°F

L: 42°F – 57°F

🌇 7:59 p.m.

Mon. May 11  

🌅 5:35 a.m.

H: 59°F – 79°F

L: 42°F – 58°F

🌇 8:00 p.m.

Tue. May 12  

🌅 5:34 a.m.

H: 59°F – 79°F

L: 43°F – 58°F

🌇 8:01 p.m.

Wed. May 13  

🌅 5:33 a.m.

H: 59°F – 79°F

L: 43°F – 58°F

🌇 8:02 p.m.

Thu. May 14 Ascension  

🌅 5:32 a.m.

H: 60°F – 80°F

L: 43°F – 59°F

🌇 8:03 p.m.

Fri. May 15  

🌅 5:31 a.m.

H: 60°F – 80°F

L: 44°F – 59°F

🌇 8:04 p.m.

Sat. May 16 🌑

🌅 5:30 a.m.

H: 60°F – 80°F

L: 44°F – 59°F

🌇 8:05 p.m.

Sun. May 17  

🌅 5:29 a.m.

H: 60°F – 81°F

L: 44°F – 60°F

🌇 8:06 p.m.

Mon. May 18  

🌅 5:28 a.m.

H: 61°F – 81°F

L: 44°F – 60°F

🌇 8:07 p.m.

Tue. May 19  

🌅 5:27 a.m.

H: 61°F – 81°F

L: 45°F – 60°F

🌇 8:08 p.m.

Wed. May 20  

🌅 5:26 a.m.

H: 62°F – 82°F

L: 45°F – 60°F

🌇 8:09 p.m.

Thu. May 21  

🌅 5:25 a.m.

H: 62°F – 82°F

L: 45°F – 61°F

🌇 8:10 p.m.

Fri. May 22  

🌅 5:24 a.m.

H: 62°F – 82°F

L: 46°F – 61°F

🌇 8:11 p.m.

Sat. May 23 🌓

🌅 5:24 a.m.

H: 63°F – 82°F

L: 46°F – 61°F

🌇 8:12 p.m.

Sun. May 24 Pentecost  

🌅 5:23 a.m.

H: 63°F – 83°F

L: 46°F – 62°F

🌇 8:13 p.m.

Mon. May 25 Memorial Day  

🌅 5:22 a.m.

H: 63°F – 83°F

L: 47°F – 62°F

🌇 8:14 p.m.

Tue. May 26  

🌅 5:21 a.m.

H: 64°F – 83°F

L: 47°F – 62°F

🌇 8:14 p.m.

Wed. May 27  

🌅 5:21 a.m.

H: 64°F – 83°F

L: 48°F – 63°F

🌇 8:15 p.m.

Thu. May 28  

🌅 5:20 a.m.

H: 64°F – 84°F

L: 48°F – 63°F

🌇 8:16 p.m.

Fri. May 29  

🌅 5:20 a.m.

H: 65°F – 84°F

L: 48°F – 63°F

🌇 8:17 p.m.

Sat. May 30  

🌅 5:19 a.m.

H: 65°F – 84°F

L: 49°F – 64°F

🌇 8:18 p.m.

Sun. May 31 🌕

🌅 5:19 a.m.

H: 66°F – 84°F

L: 49°F – 64°F

🌇 8:19 p.m.


Temperature climatic data from weather station: CHICAGO MIDWAY AP (USW00014819)

Precipitation climatic data from weather station: CHICAGO MIDWAY AP (USW00014819)

Agricultural climatic data from weather station: CHICAGO MIDWAY AP (USW00014819)