Union, OH Weather Forecast
Montgomery County, Ohio
Live radar, warnings and storm tracking for Union, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Union
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Union, OH at a glance
Union is home to about 6,949 people in Montgomery County, across 8.3 square miles. It ranks 214th by population of 358 places in Ohio with a forecast here. The nearest neighbour with its own forecast is Englewood, 3 miles away.
- County
- Montgomery County
- Population
- 6,949 2023 est.
- Land area
- 8.3 sq mi
- People per sq mi
- 837
- Forecast point
- 39.9066°N, 84.2933°W
How well can the network see Union?
The nearest Doppler radar is KILN (Wilmington, OH), to the SE. Its lowest scan passes about 2,600 ft above Union. Close enough to see rotation in the low part of a storm, where tornadoes form. Union is closer to its radar than 57% of US cities.
The closest weather station is KDAY (Dayton/Cox Intl). Close enough that its readings are the conditions in town.
Forecasts near Union
- Englewood, OH3 mi
- Clayton, OH3 mi
- West Milton, OH4 mi
- Vandalia, OH6 mi
- Tipp City, OH7 mi
- Brookville, OH8 mi
- Trotwood, OH8 mi
- Dayton, OH10 mi
Elsewhere in Ohio
ColumbusClevelandCincinnatiToledoAkronDaytonAll Ohio forecasts →

