Sumner, NE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sumner, a village in Dawson County, Nebraska.
Today
48°F
Scattered Rain Showers
Scattered rain showers before 3pm. Cloudy, with a high near 48. North northwest wind 20 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Sumner
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 48°F | Scattered Rain Showers | 20 to 30 mph NNW | 33% |
| Tonight | 34°F | Mostly Cloudy | 10 to 15 mph NW | 1% |
| Wednesday | 52°F | Sunny | 10 to 15 mph NW | 0% |
| Wednesday Night | 36°F | Partly Cloudy | 5 to 10 mph NW | 11% |
| Thursday | 52°F | Slight Chance Light Rain then Partly Sunny | 5 to 15 mph NNW | 20% |
| Thursday Night | 29°F | Mostly Clear | 0 to 5 mph NNW | 1% |
| Friday | 52°F | Mostly Sunny | 0 to 5 mph WSW | 0% |
| Friday Night | 32°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Saturday | 58°F | Mostly Sunny | 5 to 10 mph WNW | 4% |
| Saturday Night | 34°F | Mostly Clear | 5 mph NW | 3% |
| Sunday | 57°F | Sunny | 5 to 10 mph W | 1% |
| Sunday Night | 35°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 62°F | Sunny | 5 to 10 mph WNW | 1% |
| Monday Night | 38°F | Mostly Clear | 0 to 5 mph NNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Sumner (40.949, -99.508). Updated through the day.
Growing snapshot for Sumner
Last spring frost
May 10
First fall frost
Oct 1
Growing season
145 days
Hardiness zone
5b
More local growing data for Sumner: nearby ZIP 68878 weather · frost dates · planting calendar · Nebraska frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Oconto, Ne (17.5 mi from Sumner). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.