Sumner, NE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sumner, a village in Dawson County, Nebraska.
Overnight
61°F
Mostly Cloudy
Mostly cloudy, with a low around 61. North northeast wind around 25 mph, with gusts as high as 35 mph.
7-day forecast for Sumner
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 61°F | Mostly Cloudy | 25 mph NNE | 10% |
| Tuesday | 69°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 15 to 20 mph NE | 22% |
| Tuesday Night | 55°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 5 to 15 mph NE | 40% |
| Wednesday | 73°F | Chance Showers And Thunderstorms | 5 to 10 mph ENE | 40% |
| Wednesday Night | 54°F | Partly Cloudy | 0 to 5 mph SSE | 5% |
| Thursday | 82°F | Sunny | 0 to 10 mph SSE | 2% |
| Thursday Night | 61°F | Mostly Clear | 5 to 10 mph SSE | 4% |
| Friday | 90°F | Sunny | 5 to 10 mph S | 2% |
| Friday Night | 65°F | Clear | 5 to 10 mph SSE | 5% |
| Saturday | 94°F | Sunny | 5 to 20 mph S | 3% |
| Saturday Night | 68°F | Mostly Clear | 10 to 20 mph SSE | 4% |
| Sunday | 95°F | Sunny | 10 to 15 mph SSE | 1% |
| Sunday Night | 68°F | Mostly Clear | 10 to 15 mph SSE | 6% |
| Monday | 95°F | Mostly Sunny | 10 to 15 mph SSE | 6% |
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 Aug 4, 2026.