Ohio, IL Weather Forecast

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Ohio, IL Weather Forecast

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Ohio IL weather  - Clear - 90°F
Clear
90°F
Updated 1:52 pm
Feels Like 101°F
Humidity 59%
Wind VRB 6 mph
Barometer  29.96 in
Dew Point 74°F
Ohio IL weather  - Clear - 32°C
Clear
32°C
Updated 1:52 pm
Feels Like 38°C
Humidity 59%
Wind VRB 10 km/h
Barometer  101.5 kPa
Dew Point 23°C

Ohio Weather Forecast

REST OF TODAY TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY TUESDAY WEDNESDAY WEDNESDAY NIGHT THURSDAY
Ohio, IL Weather - Rest Of Today Sunny Ohio, IL Weather - Tonight Clearing Ohio, IL Weather - Saturday Patchy Fog Ohio, IL Weather - Saturday Night Mostly Clear Ohio, IL Weather - Sunday Mostly Sunny Ohio, IL Weather - Sunday Night Partly Cloudy Ohio, IL Weather - Monday Partly Cloudy Ohio, IL Weather - Tuesday Partly Cloudy Ohio, IL Weather - Wednesday Partly Cloudy Ohio, IL Weather - Wednesday Night Chance Of Showers Ohio, IL Weather - Thursday Partly Sunny
Sunny Clearing Patchy Fog Mostly Clear Mostly Sunny Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Chance of Showers Partly Sunny
Hi: 95°FHi: 35°C
Lo: 71°FLo: 22°C Hi: 91°FHi: 33°C
Lo: 69°FLo: 21°C Hi: 85°FHi: 29°C
Hi: 81°FHi: 27°C
Lo: 65°FLo: 18°C
Hi: 81°FHi: 27°C
Lo: 65°FLo: 18°C
Hi: 90°FHi: 32°C
Lo: 75°FLo: 24°C
Hi: 90°FHi: 32°C
Lo: 75°FLo: 24°C
Lo: 70°FLo: 21°C Hi: 85°FHi: 29°C
POP: 20% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 1146 AM CDT Fri Sep 04 2026 Ohio, IL Weather - WeatherWorld.com

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Issued: 1235 PM CDT Fri Sep 4 2026

Key Messages

  • Impactful heat will continue across the area through Saturday with peak heat indices of 100 to 110. The heat warnings may need to be expanded Saturday into the I-80 corridor east of the Quad Cities.
  • There will be brief reprieves from the heat late this weekend and late next week. Another surge of heat and humidity with heat indices around 100 is expected the middle of next week. The overall pattern has a 55-70% probability of above normal temperatures through mid- September.
  • There is...