Union County, OH Weather Forecast
County weather hub
Mostly Cloudy
Compare major city weather across Union County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly cloudy, with a low around 53. North wind around 3 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
- May 31 to Jun 7, 2026
- Latest sync
- May 31, 2026 8:12 PM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Union County
Sunday looks like the warmest upcoming period in Union County at 85 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Tuesday at about 7 to 14 mph NE.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- May 31, 2026 8:12 PM EDT
- Coverage
- 8 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
Partly sunny, with a high near 76. Northeast wind 1 to 6 mph.
Partly cloudy, with a low around 51. Northeast wind 5 to 8 mph.
Sunny, with a high near 74. Northeast wind 7 to 14 mph.
Mostly clear, with a low around 50. Northeast wind 2 to 13 mph.
Sunny, with a high near 77.
Clear, with a low around 55.
Sunny, with a high near 81.
Partly cloudy, with a low around 61.
Mostly sunny, with a high near 84.
A chance of rain showers after 8pm. Mostly cloudy, with a low around 65. 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 84. 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 66. Chance of precipitation is 50%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 85.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
May 31
|
Mostly Cloudy
|
53°F |
3 mph
N
|
|
Monday
Jun 1
|
Partly Sunny
|
76°F |
1 to 6 mph
NE
|
|
Monday Night
Jun 1
|
Partly Cloudy
|
51°F |
5 to 8 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
74°F |
7 to 14 mph
NE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
50°F |
2 to 13 mph
NE
|
|
Wednesday
Jun 3
|
Sunny
|
77°F |
5 mph
N
|
|
Wednesday Night
Jun 3
|
Clear
|
55°F |
2 mph
SE
|
|
Thursday
Jun 4
|
Sunny
|
81°F |
2 to 7 mph
SW
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
61°F |
6 mph
SW
|
|
Friday
Jun 5
|
Mostly Sunny
|
84°F |
7 to 14 mph
SW
|
|
Friday Night
Jun 5
|
Chance Rain Showers
|
65°F |
7 to 12 mph
SW
|
|
Saturday
Jun 6
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
84°F |
8 to 12 mph
SW
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms
|
66°F |
5 to 9 mph
SW
|
|
Sunday
Jun 7
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
85°F |
6 to 10 mph
SW
|
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.
