Weather Tomorrow

Weather Tomorrow for ZIP 60657

Chicago, IL · View full Chicago forecast

Flood WatchUntil Sep 20, 5:00 AM

Flood Watch issued September 19 at 3:57PM CDT until September 20 at 7:00AM CDT by NWS Chicago IL

A Flood Watch for flash flooding means rapid-onset flooding is possible, but not yet certain, based upon the latest forecasts. Flash flooding is a dangerous situation. Persons with interests along area rivers, creeks, and other waterways should monitor the latest forecasts and be prepared to take action should flooding develop.

Beach Hazards StatementUntil Sep 20, 4:00 AM

Beach Hazards Statement issued September 19 at 2:50PM CDT until September 22 at 7:00PM CDT by NWS Chicago IL

Remain out of the water to avoid dangerous swimming conditions and do not venture out onto piers, jetties, breakwalls, or other shoreline structures.

Sunday, September 20, 2026

68°Low 63°FColdHot
Thunderstorms

Precip chance

100%

Wind

5-25 mph

Humidity

95%

Feels like

66–65°F

Rain forecast

Rain likely starts around 5 AM and may continue until 8 PM. Peak chance: 100% around 8 AM.

Data source: National Weather Service (NOAA) · Updated 4 min ago

Tomorrow by Hour

63°Temperature trend68°
TimeTempConditionRain %Wind
5 AM68°FShowers And Thunderstorms
80%
5 mph SE
6 AM68°FShowers And Thunderstorms
90%
5 mph SSE
7 AM68°FShowers And Thunderstorms
95%
5 mph ESE
8 AM68°FShowers And Thunderstorms
100%
10 mph NNE
9 AM68°FShowers And Thunderstorms
100%
10 mph N
10 AM68°FShowers And Thunderstorms
100%
10 mph N
11 AM67°FShowers And Thunderstorms
88%
15 mph N
12 PM67°FShowers And Thunderstorms
84%
15 mph N
1 PM66°FShowers And Thunderstorms
78%
15 mph NNE
2 PM66°FShowers And Thunderstorms Likely
72%
20 mph NNE
3 PM66°FRain Showers Likely
71%
20 mph NNE
4 PM66°FRain Showers Likely
71%
20 mph NNE
5 PM66°FRain Showers Likely
71%
20 mph NE
6 PM66°FChance Rain Showers
54%
20 mph NE
7 PM66°FChance Rain Showers
54%
25 mph NE
8 PM65°FChance Rain Showers
54%
25 mph NE
9 PM65°FSlight Chance Rain Showers
23%
25 mph NE
10 PM66°FSlight Chance Rain Showers
23%
25 mph NE
11 PM65°FSlight Chance Rain Showers
23%
25 mph NE
12 AM64°FMostly Cloudy
14%
25 mph NE
1 AM63°FMostly Cloudy
8%
25 mph ENE
2 AM63°FMostly Cloudy
7%
25 mph ENE
3 AM63°FMostly Cloudy
4%
25 mph ENE
4 AM63°FMostly Cloudy
7%
20 mph ENE

Precipitation Timeline

100%
50%
100%
5a11a5p11p
<20%20-50%50-70%>70%

What to Wear Tomorrow

Warm and comfortable — dress light

Clothing

  • T-shirt or light blouse
  • Shorts or light pants

Footwear

Comfortable shoes or sandals

Accessories

  • Umbrella
  • Windbreaker

Conditions

High: 68°F

Low: 63°F

Wind: 5-25 mph

Rain: 100%

Rain expected around 5 AM — carry an umbrella. Windy conditions (gusts up to 25 mph) — secure loose items.

Best Time to Be Outside Tomorrow

9 PM – 10 PM74

Good conditions for being outside (comfortable temp, daylight)

5a11a5p11p