Union, NE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Union, a village in Cass County, Nebraska.
Overnight
68°F
Mostly Cloudy
Mostly cloudy. Low around 68, with temperatures rising to around 70 overnight. East wind around 2 mph.
7-day forecast for Union
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Mostly Cloudy | 2 mph E | 6% |
| Tuesday | 83°F | Partly Sunny then Chance Showers And Thunderstorms | 1 to 12 mph NNE | 35% |
| Tuesday Night | 64°F | Chance Showers And Thunderstorms | 7 to 12 mph NNE | 85% |
| Wednesday | 74°F | Showers And Thunderstorms | 8 mph NE | 79% |
| Wednesday Night | 59°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 7 mph NE | 16% |
| Thursday | 81°F | Mostly Sunny | 3 mph E | 2% |
| Thursday Night | 64°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 3 mph SSE | 18% |
| Friday | 86°F | Slight Chance Showers And Thunderstorms then Sunny | 3 to 7 mph S | 18% |
| Friday Night | 69°F | Mostly Clear | 6 mph SSE | 4% |
| Saturday | 91°F | Sunny | 3 to 13 mph S | 1% |
| Saturday Night | 73°F | Mostly Clear | 12 mph S | 7% |
| Sunday | 93°F | Mostly Sunny | 8 to 13 mph S | 7% |
| Sunday Night | 74°F | Partly Cloudy | 10 to 14 mph SSE | 9% |
| Monday | 93°F | Mostly Sunny | 10 to 16 mph S | 9% |
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
Nearby towns & communities
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Beaver Lake
Cedar Creek
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Lake Waconda
Louisville
Manley
Murdock
Murray
Nehawka
Plattsmouth
South Bend
Weeping Water
Woodland Hills
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 Aug 4, 2026.