Union Grove Weather Forecast
- 64
- 87
Chance Rain Showers
- 65
- 87
Increasing Clouds
- 68
- 89
Partly Sunny
- 69
- 91
Chance Thunderstorms
- 64
- 88
Rain Showers Likely
- 62
- 85
Slight Chance Thunderstorms
- 64
- 87
Slight Chance Thunderstorms
Today 4 Jul Union
Mostly sunny. Highs in the upper 80s. Northwest Winds around 5 Mph.
Tonight 4 Jul Union
Partly cloudy. A chance of Showers and Thunderstorms, mainly this evening. Lows in the mid 60s. East Winds around 5 Mph. Chance of rain 40 percent.
Union Grove Temperature Statistics
July Temperature
Yankton, Chan Gurney Municipal Airport (30.4 miles)
Lowest 1 July, 2026
66 °FAverage July
77.3 °FHighest 2 July, 2026
91 °F
Climate (2021–2026)
Yankton, Chan Gurney Municipal Airport (30.4 miles)
Average Low 2021–2026
39.3 °FAverage 2021–2026
50.5 °FAverage High 2021–2026
61.8 °F