Waukegan, Illinois Weather Forecast
Today in Waukegan: mostly sunny with a high near 67°F and a low around 50°F. Rain chance 0%. No day tops a 20% rain chance through Thursday. Highs run 58 to 71°F through Thursday.
Forecast updated 9:05 AM CDT, Oct 23
Active Weather Alerts
7-Day Forecast for Waukegan
Today 10/23
67°50°
Sat 10/24
67°51°
Sun 10/25
71°52°
Mon 10/26
61°52°
Tue 10/27
58°49°
Wed 10/28
66°49°
Thu 10/29
14%
65°50°
Next 24 Hours
| Now | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | Sat12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sky |  | | | | | | | |  | | | | | | | | | | | | | | | |
| Temp | 66° | 67° | 67° | 67° | 66° | 63° | 61° | 58° | 57° | 57° | 56° | 55° | 55° | 55° | 54° | 54° | 53° | 52° | 51° | 51° | 52° | 56° | 59° | 62° |
| Rain | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 1% | 1% | 1% | 2% | 2% | 2% | 2% | 3% | 3% | 3% |
| Wind | SSE 4 | SE 5 | ESE 5 | ESE 5 | ESE 6 | ESE 5 | ESE 4 | SE 3 | SE 3 | SE 3 | SE 4 | SSE 4 | SSE 3 | SSE 3 | S 3 | S 3 | S 3 | S 3 | S 3 | S 3 | S 4 | S 5 | S 5 | S 6 |
Growing Conditions
Growing degree days
3,193
since Apr 1, base 50°F
Rain, last 30 days
2.64 in
model analysis
Rain, year to date
34.63 in
since Jan 1
2-inch soil temperature
55°F
yesterday, daily average
Reference ET, last 7 days
0.61 in
FAO-56 grass reference
Through Oct 22. Season totals use model analysis for this point and update every morning.
Soil, ET and spray tools for Waukegan →
Current Stats & Observations
NWS Forecast
About Waukegan Weather
Waukegan sits at about 722 feet above sea level in Lake County, Illinois. About 86,075 people live in the Waukegan area. Official forecasts and warnings for the area come from the National Weather Service LOT office, and the nearest NEXRAD radar site is KMKX. The city is in USDA plant hardiness zone 6a, where the coldest winter night typically falls between -10 to -5°F. Over the past ten years the last spring freeze has come around Apr 18 and the first fall freeze around Nov 3.
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