Union, NE Weather & Growing Conditions
Tonight
43°F
Chance Rain Showers then Cloudy
A chance of rain showers before 10pm. Cloudy. Low around 43, with temperatures rising to around 45 overnight. Northwest wind 14 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 43°F | Chance Rain Showers then Cloudy | 14 to 17 mph NW | 25% |
| Wednesday | 52°F | Mostly Cloudy | 10 to 14 mph WNW | 7% |
| Wednesday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 9 mph WNW | 17% |
| Thursday | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 8 to 12 mph NW | 18% |
| Thursday Night | 39°F | Mostly Cloudy | 7 mph NNW | 2% |
| Friday | 52°F | Partly Sunny | 1 to 5 mph N | 1% |
| Friday Night | 33°F | Partly Cloudy | 1 mph SSE | 0% |
| Saturday | 56°F | Mostly Sunny | 3 mph SSW | 1% |
| Saturday Night | 37°F | Mostly Clear | 2 mph WSW | 0% |
| Sunday | 62°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 41°F | Mostly Clear | 5 mph SSW | 0% |
| Monday | 67°F | Sunny | 5 to 8 mph SW | 0% |
| Monday Night | 43°F | Mostly Clear | 3 mph WNW | 0% |
| Tuesday | 66°F | Mostly Sunny | 5 mph NNE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Union, NE
Last spring frost
Apr 18
First fall frost
Oct 19
Growing season
182 days
Hardiness zone
5b
Explore more for Union, NE: full frost dates · planting calendar · Nebraska frost dates
Climate data from the nearest NOAA station, Nebraska City 2Nw, Ne (8.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.