Gretna, NE Weather & Growing Conditions
Overnight
69°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy. Low around 69, with temperatures rising to around 71 overnight. East wind around 3 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 69°F | Slight Chance Showers And Thunderstorms | 3 mph E | 17% |
| Tuesday | 79°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 10 mph NNE | 51% |
| Tuesday Night | 62°F | Chance Showers And Thunderstorms then Patchy Smoke | 5 to 12 mph NNE | 80% |
| Wednesday | 73°F | Patchy Smoke | 7 mph ENE | 63% |
| Wednesday Night | 58°F | Mostly Clear | 1 to 5 mph E | 7% |
| Thursday | 81°F | Mostly Sunny | 0 to 5 mph E | 1% |
| Thursday Night | 64°F | Mostly Clear | 3 mph SSE | 6% |
| Friday | 86°F | Sunny | 3 to 7 mph S | 6% |
| Friday Night | 69°F | Mostly Clear | 6 mph S | 3% |
| Saturday | 91°F | Sunny | 3 to 12 mph S | 2% |
| Saturday Night | 72°F | Mostly Clear | 7 to 12 mph S | 6% |
| Sunday | 92°F | Mostly Sunny | 6 to 10 mph SSE | 4% |
| Sunday Night | 73°F | Partly Cloudy | 12 mph SSE | 14% |
| Monday | 93°F | Mostly Sunny | 9 to 13 mph S | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Gretna, NE
Last spring frost
Apr 21
First fall frost
Oct 18
Growing season
179 days
Hardiness zone
6a
Explore more for Gretna, NE: full frost dates · planting calendar · Nebraska frost dates
Climate data from the nearest NOAA station, Gretna 4Ne, Ne (0.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.