Ohio, IL Weather Forecast

Local 7-day forecast

90°
F

Sunny then Chance Showers And Thunderstorms

Track current conditions, temperature changes, wind, and the full daily outlook for Ohio, IL in one place.

Saturday, July 18, 2026
Wind: 10 to 15 mph W
Saturday

A chance of showers and thunderstorms after 2pm. Sunny. High near 90, with temperatures falling to around 86 in the afternoon. West wind 10 to 15 mph. Chance of precipitation is 40%.

Local 7-day forecast

Local Weather Overview

This forecast page for Ohio, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 3:18 PM CDT.

The active forecast window currently covers Jul 18 to Jul 23, 2026 for Ohio, IL.

Page Snapshot

Page focus
city weather
Forecast window
Jul 18 to Jul 23, 2026
Latest sync
Jul 17, 2026 3:18 PM CDT
Forecast office
DVN
Source
NOAA / NWS
Next High
90°F
Saturday
Next Low
64°F
Saturday Night
Rain Outlook
4
Periods mentioning precipitation
Windiest
10 to 15 mph
Saturday

Daily Outlook

Today
Jul 18
Sunny then Chance Showers And Thunderstorms
90 °F
/ 64°F
Wind 10 to 15 mph
Sun
Jul 19
Patchy Smoke then Sunny
84 °F
/ 65°F
Wind 5 mph
Mon
Jul 20
Mostly Sunny then Chance Showers And Thunderstorms
89 °F
/ 70°F
Wind 5 to 15 mph
Tue
Jul 21
Chance Showers And Thunderstorms then Sunny
85 °F
/ 61°F
Wind 10 to 15 mph
Wed
Jul 22
Sunny
79 °F
/ 59°F
Wind 5 to 10 mph
Thu
Jul 23
Sunny
79 °F
/ 61°F
Wind 5 mph

This Week in Ohio

Saturday looks like the warmest upcoming period in Ohio at 90 degrees F.

Wednesday Night is the coolest period ahead with temperatures near 59 degrees F.

The strongest winds are forecast for Saturday at about 10 to 15 mph W.

Precipitation is mentioned in 4 upcoming forecast periods.

Forecast Details

Last updated
Jul 17, 2026 3:18 PM CDT
Coverage
6 days
Time zone
America/Chicago
Forecast office
DVN
Radar station
KDVN

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Saturday Night
Jul 18
64°F
Partly Cloudy then Patchy Smoke
5 to 10 mph NE

Patchy smoke after 2am. Partly cloudy, with a low around 64. Northeast wind 5 to 10 mph.

Sunday
Jul 19
84°F
Patchy Smoke then Sunny
5 mph E

Patchy smoke before 7am. Sunny, with a high near 84.

Sunday Night
Jul 19
65°F
Mostly Clear
5 mph SE

Mostly clear, with a low around 65.

Monday
Jul 20
89°F
Mostly Sunny then Chance Showers And Thunderstorms
5 to 15 mph S

A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. Chance of precipitation is 40%.

Monday Night
Jul 20
70°F
Chance Showers And Thunderstorms
10 to 15 mph W

A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 50%.

Tuesday
Jul 21
85°F
Chance Showers And Thunderstorms then Sunny
10 to 15 mph NW

A chance of showers and thunderstorms before 7am. Sunny, with a high near 85. Chance of precipitation is 30%.

Tuesday Night
Jul 21
61°F
Mostly Clear
10 to 15 mph N

Mostly clear, with a low around 61.

Wednesday
Jul 22
79°F
Sunny
5 to 10 mph N

Sunny, with a high near 79.

Wednesday Night
Jul 22
59°F
Mostly Clear
0 to 5 mph E

Mostly clear, with a low around 59.

Thursday
Jul 23
79°F
Sunny
5 mph SE

Sunny, with a high near 79.

Thursday Night
Jul 23
61°F
Partly Cloudy
5 mph S

Partly cloudy, with a low around 61.

Detailed Forecast

Period Conditions Temp Wind
Saturday
Jul 18
Sunny then Chance Showers And Thunderstorms
90°F
10 to 15 mph
W
Saturday Night
Jul 18
Partly Cloudy then Patchy Smoke
64°F
5 to 10 mph
NE
Sunday
Jul 19
Patchy Smoke then Sunny
84°F
5 mph
E
Sunday Night
Jul 19
Mostly Clear
65°F
5 mph
SE
Monday
Jul 20
Mostly Sunny then Chance Showers And Thunderstorms
89°F
5 to 15 mph
S
Monday Night
Jul 20
Chance Showers And Thunderstorms
70°F
10 to 15 mph
W
Tuesday
Jul 21
Chance Showers And Thunderstorms then Sunny
85°F
10 to 15 mph
NW
Tuesday Night
Jul 21
Mostly Clear
61°F
10 to 15 mph
N
Wednesday
Jul 22
Sunny
79°F
5 to 10 mph
N
Wednesday Night
Jul 22
Mostly Clear
59°F
0 to 5 mph
E
Thursday
Jul 23
Sunny
79°F
5 mph
SE
Thursday Night
Jul 23
Partly Cloudy
61°F
5 mph
S
Old Marathon Filling Station  Ohio  Illinois 8-27-2012
Old Marathon Filling Station Ohio Illinois 8-27-2012 image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.