Mercer County, OH Weather Forecast
County weather hub
Chance Rain Showers
Compare major city weather across Mercer County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain showers. Partly sunny, with a high near 76. East wind 0 to 5 mph.
County Weather Overview
This county weather page brings together forecast coverage for Mercer County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 4 of 4 mapped cities in Mercer County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jun 1 to Jun 6, 2026
- Latest sync
- May 31, 2026 9:22 AM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Mercer County
Friday looks like the warmest upcoming period in Mercer County at 85 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 14 mph NE.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- May 31, 2026 9:22 AM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- ILN
- Radar station
- KIWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers before 8pm. Partly cloudy, with a low around 54. Northeast wind around 5 mph.
Sunny, with a high near 76. Northeast wind 5 to 14 mph.
Mostly clear, with a low around 52.
Sunny, with a high near 78.
Clear, with a low around 55.
Sunny, with a high near 82.
Partly cloudy, with a low around 62.
Mostly sunny, with a high near 85.
A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Jun 1
|
Chance Rain Showers
|
76°F |
0 to 5 mph
E
|
|
Monday Night
Jun 1
|
Chance Rain Showers then Partly Cloudy
|
54°F |
5 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
76°F |
5 to 14 mph
NE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
52°F |
1 to 13 mph
NE
|
|
Wednesday
Jun 3
|
Sunny
|
78°F |
3 mph
NE
|
|
Wednesday Night
Jun 3
|
Clear
|
55°F |
3 mph
SE
|
|
Thursday
Jun 4
|
Sunny
|
82°F |
1 to 7 mph
SW
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
62°F |
6 mph
SW
|
|
Friday
Jun 5
|
Mostly Sunny
|
85°F |
6 to 13 mph
SW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
66°F |
7 to 12 mph
SW
|
|
Saturday
Jun 6
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
85°F |
9 to 13 mph
SW
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms
|
67°F |
7 to 10 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Mercer County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in Mercer County.
Largest mapped city population in this region: 10,438.
