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FallThursday, October 29, 2026 · 4:42 AM CDT

Illinois weather forecast today

Scattered clouds, temperatures from 58° to 77°. Cool weather, bring a jacket.

  • Chance of rain0%
  • Humidity63%
  • UV0 · Low
Now in Illinois 63°F clear sky clear sky ↑ 77°   ↓ 58°  ·  Feels like 62°

Illinois weather through the day

Morning 7 AM clear sky 60° clear sky 0%
Noon 1 PM clear sky 76° clear sky 0%
Evening 6 PM scattered clouds 71° scattered clouds 0%
Night 10 PM clear sky 61° clear sky 0%

Illinois weather conditions right now

63% Humidity Dew point 50°
0 UV index Low
0% Cloud cover Visibility 6.2 mi
9 mph Wind S
Pressure
30.12 inHg
Wind gusts
–
Sunrise
7:23 AM CDT
Sunset
6:00 PM CDT

Illinois weather for the next 12 hours

Now clear sky 63° 0% rain
5 AM clear sky 62° 0% rain
6 AM few clouds 60° 0% rain
7 AM clear sky 59° 0% rain
8 AM clear sky 58° 0% rain
9 AM scattered clouds 63° 0% rain
10 AM few clouds 69° 0% rain
11 AM broken clouds 73° 0% rain
12 PM scattered clouds 76° 0% rain
1 PM clear sky 76° 0% rain
2 PM overcast clouds 76° 0% rain
3 PM overcast clouds 77° 0% rain
See the 48-hour weather clock →

Illinois weather for the coming days

55° – 77°
  1. TodayOct 29 scattered clouds scattered clouds 0% 58° 77°
  2. TomorrowOct 30 overcast clouds overcast clouds 37% 55° 72°
  3. SatOct 31 light rain light rain 98% 56° 61°
  4. SunNov 1 light rain light rain 100% 56° 70°
  5. MonNov 2 light rain light rain 100% 59° 67°
  6. TueNov 3 moderate rain moderate rain 100% 61° 67°
  7. WedNov 4 moderate rain moderate rain 100% 62° 65°
  8. ThuNov 5 light rain light rain 100% 58° 64°

Illinois temperature and rainfall for the coming days

Illinois weather outlook for the next 7 days

From Oct 29 to Nov 4, temperatures in Illinois will range from 55° to 77°. The hottest day is today (Oct 29), with a high of 77°; the coolest night is tomorrow (Oct 30), dipping to around 55°. Overall, daytime temperatures are expected to ease slightly towards the end of the period.

5 of the next 7 days are forecast to bring 0.04 in of rain or more: Saturday, Oct 31 (~0.13 in), Sunday, Nov 1 (~0.09 in), Monday, Nov 2 (~0.06 in) and Tuesday, Nov 3 (~0.98 in)…. The wettest day is Tuesday, Nov 3, with around 0.98 in of rain.

The windiest day is Tuesday, Nov 3, with average speeds of about 18 mph and gusts of up to 34 mph. The UV index peaks at 3.6 (moderate) tomorrow (Oct 30). Average daily humidity ranges from 55% to 92%.

Advice
  • Rainy days ahead: carry an umbrella or raincoat, slow down on wet roads and never drive through flooded roads – turn around, don't drown.
  • Strong winds: secure outdoor furniture and trash cans, watch for falling branches and downed power lines, and drivers of high-profile vehicles should use caution.

Frequently asked questions about the weather in Illinois

Will it rain in Illinois in the next 24 hours?

The chance of rain in Illinois over the next 24 hours is low, peaking at only about 0% at 4:00 AM. It should be fine for outdoor plans.

What is the weather in Illinois tomorrow?

Tomorrow (Friday, Oct 30), Illinois will see overcast clouds, with temperatures from 55° to 72°, a 37% chance of rain, humidity around 55% and winds of 8 mph. Light showers possible. Cool weather, bring a jacket.

Which day will be hottest in Illinois this week?

According to the forecast, today (Oct 29) will be the hottest day, with a high of about 77°. The coolest is tomorrow (Oct 30), with a low of about 55°.

Which day is best for going out or outdoor activities in Illinois?

Today (Oct 29) is the best day of the next 7: scattered clouds, 58° to 77°, with a 0% chance of rain. Go in the morning or late afternoon to avoid the strongest sun.

Is this forecast accurate for every part of Illinois?

The forecast is calculated for a representative point in Illinois. In mountain and coastal areas, or during showers and thunderstorms, conditions can vary a lot from place to place. For tornadoes, hurricanes, floods and winter storms, always follow the official National Weather Service warnings.

More forecasts for Illinois

Hourly48-hour clock 3 daysThree-day view 5 daysFive thermometers 7 daysWeek planner 10 daysTemperature wave 15 daysTemperature ladder 20 daysThree stages 30 daysWall calendar

About the weather in Illinois

Illinois is a state in the East North Central division of the United States, with its capital in Springfield. WeatherUS30Day covers 102 counties or county-equivalents and 1,451 cities, towns and census-designated places here, including Chicago, Aurora, Joliet, Naperville and Rockford.

Local time: Central Time. All times on this page are local.

The state-wide forecast is calculated for Springfield. Weather can be very different across Illinois, so choose your county or city for a local forecast, and check the official National Weather Service alerts before you travel.