Jansen, NE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jansen, a village in Jefferson County, Nebraska.
This Afternoon
93°F
Sunny
Sunny. High near 93, with temperatures falling to around 91 in the afternoon. South southwest wind around 14 mph, with gusts as high as 22 mph.
7-day forecast for Jansen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 93°F | Sunny | 14 mph SSW | 2% |
| Tonight | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 8 to 12 mph S | 28% |
| Saturday | 85°F | Slight Chance Showers And Thunderstorms | 7 mph NNE | 27% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 9 mph NNE | 33% |
| Sunday | 68°F | Chance Rain Showers | 9 mph NNE | 48% |
| Sunday Night | 59°F | Chance Rain Showers | 5 to 8 mph NNE | 48% |
| Monday | 64°F | Slight Chance Rain Showers | 8 mph NNE | 23% |
| Monday Night | 54°F | Mostly Cloudy | 3 to 7 mph NE | 9% |
| Tuesday | 63°F | Partly Sunny | 3 to 7 mph NE | 4% |
| Tuesday Night | 52°F | Partly Cloudy | 5 mph E | 0% |
| Wednesday | 66°F | Partly Sunny | 5 mph SE | 7% |
| Wednesday Night | 57°F | Mostly Cloudy then Chance Rain Showers | 5 mph SE | 27% |
| Thursday | 67°F | Chance Showers And Thunderstorms | 6 mph SSE | 36% |
| Thursday Night | 59°F | Mostly Cloudy then Chance Rain Showers | 5 mph SE | 28% |
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 Sep 18, 2026.