Union, Ohio Weather
Union, Ohio — live current conditions, hourly and 7-day forecasts, NWS alerts, radar and satellite imagery, soil and crop conditions for Union, Montgomery County.
Full aviation weather for Union is published on the James M. Cox Dayton International Airport (KDAY) page, 7 km away. It carries the current METAR decoded into plain language — surface wind, visibility, cloud layers and ceiling, temperature and dewpoint, and altimeter setting — alongside the raw observation as transmitted. 6 airfields within reach of Union have their own pages, listed below.
The Terminal Aerodrome Forecast (TAF) is shown across its full validity period, with each change group broken out so you can see when conditions are expected to shift. Flight category is derived automatically — VFR, MVFR, IFR or LIFR — from reported ceiling and visibility, with runway details and field elevation alongside. Observations update roughly hourly and forecasts several times a day.
Other airports near Union: Dahio Trotwood Airport (KI44) 15 km · Wright-Patterson Air Force Base (KFFO) 23 km · Dayton-Wright Brothers Airport (KMGY) 35 km · Middletown Regional Airport (KMWO) 42 km · Richmond Municipal Airport (KRID) 48 km
Conditions reported at KDAY describe the airfield itself. Weather 7 km away can differ, particularly in terrain or near the coast. For conditions at Union specifically, see the current conditions and forecast above.
Soil conditions, frost risk and crop weather for Union.
About Union, Ohio
Union is a place where the land remembers its past, a quiet corner of Montgomery County where the horizon stretches wide and the soil holds the memory of fertile fields. It lies 6.3 miles west-north-west of Butler Township, OH (from Butler Township, OH: bearing 295°T), and is situated 7.1 miles north-north-west of Harrison Township. The terrain here is a gentle swell, the kind that suggests a slow, deliberate shaping by water and wind over ages, not the sharp drama of mountains, but the enduring presence of rolling farmland and woodlands that soften the edges of the sky. The air, particularly in the late afternoon, carries a certain sweetness, a blend of cut grass and distant woodsmoke that settles over the neighborhood roads and the occasional cluster of homes. You can see the subtle changes in the light as it filters through the leaves of mature oak and maple trees, casting shifting patterns on driveways and sidewalks, a quiet testament to the persistent cycle of seasons. This land was once the domain of agricultural endeavors, its economy deeply rooted in the cultivation of the very soil that still nourishes it, though the economic landscape has shifted, embracing a more diversified character. Union’s growth has been marked by a steady integration of residential areas and a developing commercial presence, serving the needs of its inhabitants while retaining a connection to its agrarian heritage. It’s a place where history whispers not in grand monuments, but in the enduring patterns of settlement and the quiet persistence of local businesses that have weathered changing times. The spirit of Union is one of quiet resilience, a community that has adapted and evolved, finding its own distinctive rhythm amidst the broader currents of regional development.
Live animated radar for Union and surroundings — RainViewer.
NOAA GOES-16 GEOCOLOR — live animated loop updated every 10 minutes. Shows cloud cover, storm systems and weather patterns across the continental US.
Source: NOAA/NESDIS GOES-East · Public domain · Auto-updates on page reload
| Location | Union, Montgomery County, Ohio |
| Coordinates | 39.897833°N, 84.306334°W |
| Timezone | Eastern Time (America/New_York) |
| ZIP Code(s) | 45322, 45390 |
| Area Code | 937 |
| Page generated | September 2026 |
| Weather data | Open-Meteo (open-source), NOAA National Weather Service |
About This Union, Ohio Weather Page
This page provides live weather conditions and forecasts for Union, Ohio, including current conditions, a 24-hour hourly forecast, 7-day outlook, NWS extended text forecast, precipitation radar and NOAA GOES-16 satellite imagery. Aviation weather — live METAR observations and TAF forecasts — is published separately on the pages for the nearest reporting airports, linked from the aviation section above. Additional sections may include tide predictions, wave height, wave direction and sea-surface temperature, a barometric pressure trend, and a solunar-based fishing forecast with a fishing-conditions rating for coastal localities, and soil temperature, crop weather and live USGS river gauge data for agricultural areas near a monitored waterway. All data updates automatically on every page visit.
Location data for Union includes coordinates 39.897833°N, 84.306334°W, situated in Montgomery County. ZIP code 45322, 45390. Telephone area code: 937. Timezone: Eastern Time (America/New_York).
Weather data is sourced from the NOAA National Weather Service (NWS) and the open-source Open-Meteo API. River and stream data is sourced from the USGS National Water Information System. Tide predictions are sourced from NOAA CO-OPS; marine and solunar data are modeled from Open-Meteo and public sunrise/moon calculations and should be treated as a general guide alongside on-the-water conditions. Radar is provided by RainViewer. Satellite imagery is sourced from NOAA/NESDIS GOES-East and is public domain.
