Union, OH Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Union, OH in one place.
Partly sunny, with a high near 88. Southwest wind 3 to 12 mph.
Local Weather Overview
This forecast page for Union, OH 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 27, 2026 11:33 AM EDT.
The active forecast window currently covers Jul 27 to Aug 2, 2026 for Union, OH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 27 to Aug 2, 2026
- Latest sync
- Jul 27, 2026 11:33 AM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Union
Today looks like the warmest upcoming period in Union at 88 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Tuesday at about 15 mph NW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 27, 2026 11:33 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 8pm and 11pm, then showers and thunderstorms between 11pm and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind 10 to 14 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Partly sunny, with a high near 83. Northwest wind around 15 mph. New rainfall amounts between a quarter and half of an inch possible.
Partly cloudy, with a low around 63. North wind 8 to 14 mph.
Sunny, with a high near 80. North wind 9 to 14 mph.
Clear, with a low around 59.
Sunny, with a high near 82.
Mostly clear, with a low around 62.
Mostly sunny, with a high near 84.
A slight chance of rain showers after 2am. Mostly cloudy, with a low around 66.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
A slight chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 27
|
Partly Sunny
|
88°F |
3 to 12 mph
SW
|
|
Tonight
Jul 27
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
72°F |
10 to 14 mph
SW
|
|
Tuesday
Jul 28
|
Partly Sunny
|
83°F |
15 mph
NW
|
|
Tuesday Night
Jul 28
|
Partly Cloudy
|
63°F |
8 to 14 mph
N
|
|
Wednesday
Jul 29
|
Sunny
|
80°F |
9 to 14 mph
N
|
|
Wednesday Night
Jul 29
|
Clear
|
59°F |
5 to 13 mph
N
|
|
Thursday
Jul 30
|
Sunny
|
82°F |
5 to 8 mph
N
|
|
Thursday Night
Jul 30
|
Mostly Clear
|
62°F |
2 to 7 mph
NW
|
|
Friday
Jul 31
|
Mostly Sunny
|
84°F |
2 to 6 mph
SW
|
|
Friday Night
Jul 31
|
Mostly Cloudy then Slight Chance Rain Showers
|
66°F |
5 mph
NE
|
|
Saturday
Aug 1
|
Chance Rain Showers
|
83°F |
6 mph
S
|
|
Saturday Night
Aug 1
|
Chance Showers And Thunderstorms
|
65°F |
6 mph
N
|
|
Sunday
Aug 2
|
Chance Showers And Thunderstorms
|
82°F |
5 to 9 mph
N
|
|
Sunday Night
Aug 2
|
Chance Showers And Thunderstorms then Partly Cloudy
|
64°F |
5 to 8 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Union.