Jansen, NE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jansen, a village in Jefferson County, Nebraska.
This Afternoon
54°F
Mostly Sunny
Mostly sunny. High near 54, with temperatures falling to around 49 in the afternoon. West northwest wind around 9 mph.
7-day forecast for Jansen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 54°F | Mostly Sunny | 9 mph WNW | 0% |
| Tonight | 38°F | Partly Cloudy | 5 to 8 mph WNW | 14% |
| Thursday | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 7 to 10 mph NNW | 17% |
| Thursday Night | 34°F | Mostly Cloudy | 6 mph N | 1% |
| Friday | 49°F | Partly Sunny | 0 to 5 mph NNE | 1% |
| Friday Night | 31°F | Partly Cloudy | 2 mph SE | 0% |
| Saturday | 58°F | Mostly Sunny | 2 to 6 mph SSW | 0% |
| Saturday Night | 35°F | Mostly Clear | 3 mph SW | 0% |
| Sunday | 64°F | Sunny | 3 mph WSW | 0% |
| Sunday Night | 39°F | Clear | 2 to 6 mph SSW | 0% |
| Monday | 68°F | Sunny | 6 to 9 mph SSW | 0% |
| Monday Night | 41°F | Clear | 5 mph W | 0% |
| Tuesday | 66°F | Sunny | 5 mph NE | 1% |
| Tuesday Night | 43°F | Partly Cloudy | 3 mph ENE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Jansen (40.184, -97.085). Updated through the day.
Growing snapshot for Jansen
Last spring frost
Apr 25
First fall frost
Oct 15
Growing season
169 days
Hardiness zone
6a
More local growing data for Jansen: nearby ZIP 68377 weather · frost dates · planting calendar · Nebraska frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Fairbury 5S, Ne (12.6 mi from Jansen). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.