FallToday, tomorrow and the day after

Illinois 3-day weather forecast

Three weather calendar pages to help you plan trips, get-togethers and outdoor work.

Now in Illinois 60°F clear sky clear sky ↑ 78°   ↓ 60°  ·  Feels like 59°

Illinois weather for the next 3 days

October 2026 Today
29
broken clouds

78° / 60°

Broken clouds

  • Morning60°
  • Noon76°
  • Evening72°
  • Night62°
Chance of rain
0%
Wind
10 mph S
Humidity
55%
UV
3.5 · Moderate
Sun
7:23 AM – 6:00 PM

Good weather for getting around.

October 2026 Tomorrow
30
overcast clouds

74° / 58°

Overcast clouds

  • Morning58°
  • Noon71°
  • Evening70°
  • Night64°
Chance of rain
7%
Wind
9 mph SE
Humidity
56%
UV
3.6 · Moderate
Sun
7:24 AM – 5:59 PM

Cool weather, bring a jacket.

October 2026 Saturday
31
overcast clouds

67° / 59°

Overcast clouds

  • Morning60°
  • Noon64°
  • Evening63°
  • Night60°
Chance of rain
45%
Wind
8 mph SE
Humidity
49%
UV
1.3 · Low
Sun
7:26 AM – 5:58 PM

Light showers possible.

Next 3 days in Illinois at a glance

MetricTodayOct 29TomorrowOct 30SatOct 31
High78°74°67°
Low60°58°59°
Feels like76°71°62°
Chance of rain0%7%45%
Rainfall0 in0 in0 in
Cloud cover73%100%100%
Pressure30.12 inHg30.27 inHg30.30 inHg

Illinois temperature by time of day, next 3 days

More forecasts for Illinois