Union County, OH Weather Forecast
County weather hub
Partly Cloudy
Compare major city weather across Union County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Partly cloudy, with a low around 73. West wind around 5 mph.
County Weather Overview
This county weather page brings together forecast coverage for Union County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 0 of 0 mapped cities in Union County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 15 to Jul 22, 2026
- Latest sync
- Jul 15, 2026 11:11 PM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Union County
Thursday looks like the warmest upcoming period in Union County at 92 degrees F.
Sunday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Tuesday at about 10 to 15 mph NW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 15, 2026 11:11 PM 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
Areas of smoke after 8am. Mostly sunny, with a high near 92. Northwest wind around 7 mph.
Areas of smoke. Mostly clear, with a low around 68. East wind 2 to 6 mph.
Areas of smoke before 8am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 91. South wind 3 to 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms between 11pm and 5am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 89. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
A slight chance of rain showers before 8am. Mostly sunny, with a high near 83.
Mostly clear, with a low around 62.
Mostly sunny, with a high near 86.
A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%.
A chance of rain showers before 2am. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Mostly sunny, with a high near 79.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Jul 15
|
Partly Cloudy
|
73°F |
5 mph
W
|
|
Thursday
Jul 16
|
Areas Of Smoke
|
92°F |
7 mph
NW
|
|
Thursday Night
Jul 16
|
Areas Of Smoke
|
68°F |
2 to 6 mph
E
|
|
Friday
Jul 17
|
Areas Of Smoke then Chance Showers And Thunderstorms
|
91°F |
3 to 7 mph
S
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms
|
72°F |
7 mph
SW
|
|
Saturday
Jul 18
|
Chance Showers And Thunderstorms
|
89°F |
8 to 14 mph
SW
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms Likely
|
68°F |
8 to 14 mph
NW
|
|
Sunday
Jul 19
|
Slight Chance Rain Showers then Mostly Sunny
|
83°F |
10 mph
N
|
|
Sunday Night
Jul 19
|
Mostly Clear
|
62°F |
2 to 10 mph
E
|
|
Monday
Jul 20
|
Mostly Sunny
|
86°F |
2 to 7 mph
SW
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms
|
68°F |
5 to 9 mph
SW
|
|
Tuesday
Jul 21
|
Chance Showers And Thunderstorms
|
85°F |
10 to 15 mph
NW
|
|
Tuesday Night
Jul 21
|
Chance Rain Showers
|
62°F |
8 to 14 mph
NW
|
|
Wednesday
Jul 22
|
Mostly Sunny
|
79°F |
8 to 13 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union County.
Nearby forecast pages are not available for this location yet.
Coverage
Forecast coverage currently spans 0 of 0 mapped cities in Union County.
