Hamilton County, OH Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Hamilton County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 89. Southwest wind 3 to 8 mph. New rainfall amounts between a tenth and quarter of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Hamilton County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 27 of 27 mapped cities in Hamilton County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 9 to Jul 15, 2026
- Latest sync
- Jul 9, 2026 9:42 AM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Hamilton County
Wednesday looks like the warmest upcoming period in Hamilton County at 91 degrees F.
Saturday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Today at about 3 to 8 mph SW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 9, 2026 9:42 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- ILN
- Radar station
- KILN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms between 10pm and 2am, then showers and thunderstorms. Mostly cloudy, with a low around 70. Southwest wind 3 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms likely before 10am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 85. Southwest wind 5 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
A slight chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 68. West wind 1 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a high near 85. Northeast wind 2 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms likely before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly sunny, with a high near 86.
Partly cloudy, with a low around 66.
Sunny, with a high near 88.
Mostly clear, with a low around 68.
Sunny, with a high near 90.
Mostly clear, with a low around 70.
Sunny, with a high near 91.
Mostly clear, with a low around 71.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 9
|
Mostly Sunny
|
89°F |
3 to 8 mph
SW
|
|
Tonight
Jul 9
|
Chance Showers And Thunderstorms
|
70°F |
3 to 8 mph
SW
|
|
Friday
Jul 10
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
85°F |
5 to 8 mph
SW
|
|
Friday Night
Jul 10
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
68°F |
1 to 7 mph
W
|
|
Saturday
Jul 11
|
Showers And Thunderstorms Likely
|
85°F |
2 to 7 mph
NE
|
|
Saturday Night
Jul 11
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
66°F |
6 mph
NE
|
|
Sunday
Jul 12
|
Mostly Sunny
|
86°F |
5 to 8 mph
NE
|
|
Sunday Night
Jul 12
|
Partly Cloudy
|
66°F |
2 to 7 mph
NE
|
|
Monday
Jul 13
|
Sunny
|
88°F |
2 to 7 mph
NE
|
|
Monday Night
Jul 13
|
Mostly Clear
|
68°F |
1 to 6 mph
NE
|
|
Tuesday
Jul 14
|
Sunny
|
90°F |
1 to 6 mph
N
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
70°F |
1 to 6 mph
NW
|
|
Wednesday
Jul 15
|
Sunny
|
91°F |
1 to 8 mph
W
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
71°F |
3 to 7 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Hamilton County.
Coverage
Forecast coverage currently spans 27 of 27 mapped cities in Hamilton County.
Largest mapped city population in this region: 304,548.
