Jansen, NE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jansen, a village in Jefferson County, Nebraska.
This Afternoon
57°F
Rain Showers Likely
Rain showers likely. Cloudy. High near 57, with temperatures falling to around 51 in the afternoon. North northwest wind around 20 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Jansen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Rain Showers Likely | 20 mph NNW | 60% |
| Tonight | 41°F | Chance Rain Showers then Cloudy | 9 to 16 mph NW | 27% |
| Wednesday | 53°F | Partly Sunny | 7 to 13 mph WNW | 0% |
| Wednesday Night | 38°F | Mostly Clear | 7 mph W | 9% |
| Thursday | 53°F | Slight Chance Rain Showers | 7 to 10 mph NW | 18% |
| Thursday Night | 35°F | Mostly Cloudy | 6 mph N | 1% |
| Friday | 53°F | Partly Sunny | 3 mph N | 0% |
| Friday Night | 35°F | Mostly Cloudy | 2 mph S | 0% |
| Saturday | 61°F | Mostly Sunny | 5 mph WSW | 3% |
| Saturday Night | 38°F | Mostly Clear | 3 mph W | 5% |
| Sunday | 65°F | Sunny | 6 mph WSW | 2% |
| Sunday Night | 41°F | Clear | 6 mph SSW | 0% |
| Monday | 67°F | Sunny | 6 to 10 mph WSW | 0% |
| Monday Night | 42°F | Mostly Clear | 5 mph NNW | 0% |
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 4, 2026.