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Union, NE Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Union, a village in Cass County, Nebraska.

This Afternoon
53°F
Mostly Cloudy
Mostly cloudy. High near 53, with temperatures falling to around 49 in the afternoon. West northwest wind 9 to 13 mph, with gusts as high as 22 mph.

7-day forecast for Union

WhenTempForecastWindPrecip
This Afternoon 53°F Mostly Cloudy 9 to 13 mph WNW 4%
Tonight 41°F Mostly Cloudy 8 mph WNW 17%
Thursday 52°F Slight Chance Rain Showers then Mostly Cloudy 12 mph NNW 18%
Thursday Night 37°F Mostly Cloudy 3 to 7 mph N 1%
Friday 50°F Partly Sunny 1 to 5 mph N 2%
Friday Night 32°F Partly Cloudy 1 mph S 0%
Saturday 57°F Mostly Sunny 1 to 5 mph SSW 0%
Saturday Night 36°F Mostly Clear 2 mph SW 0%
Sunday 63°F Sunny 2 mph WSW 0%
Sunday Night 40°F Clear 0 to 5 mph SSW 0%
Monday 69°F Sunny 5 to 8 mph SSW 1%
Monday Night 42°F Clear 5 mph W 0%
Tuesday 66°F Sunny 3 mph NNE 2%
Tuesday Night 44°F Partly Cloudy 2 mph ENE 3%

Forecast source: National Weather Service (api.weather.gov) for Union (40.814, -95.922). Updated through the day.

Growing snapshot for Union

Last spring frost
Apr 18
First fall frost
Oct 19
Growing season
182 days
Hardiness zone
5b

More local growing data for Union: nearby ZIP 68455 weather · frost dates · planting calendar · Nebraska frost dates

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Climate data from the nearest NOAA station, Nebraska City 2Nw, Ne (8.4 mi from Union). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.