Decatur, NE Weather & Growing Conditions
Tonight
64°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Mostly cloudy. Low around 64, with temperatures rising to around 67 overnight. West northwest wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Chance Showers And Thunderstorms | 7 mph WNW | 42% |
| Saturday | 72°F | Chance Showers And Thunderstorms then Mostly Cloudy | 6 to 10 mph NNW | 28% |
| Saturday Night | 59°F | Mostly Cloudy | 10 mph N | 14% |
| Sunday | 63°F | Chance Rain Showers | 12 mph NNE | 40% |
| Sunday Night | 55°F | Rain Showers Likely | 9 mph NE | 56% |
| Monday | 57°F | Showers And Thunderstorms Likely | 9 mph NE | 65% |
| Monday Night | 50°F | Chance Showers And Thunderstorms then Mostly Cloudy | 3 to 8 mph NE | 37% |
| Tuesday | 60°F | Mostly Cloudy | 7 mph ENE | 7% |
| Tuesday Night | 48°F | Partly Cloudy | 2 to 6 mph ESE | 1% |
| Wednesday | 64°F | Mostly Sunny | 2 to 7 mph SE | 6% |
| Wednesday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SE | 24% |
| Thursday | 64°F | Chance Rain Showers | 3 to 7 mph SSE | 37% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 5 mph SE | 18% |
| Friday | 66°F | Slight Chance Rain Showers then Partly Sunny | 3 to 8 mph SE | 18% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Decatur, NE
Last spring frost
May 1
First fall frost
Oct 3
Growing season
154 days
Hardiness zone
5b
Explore more for Decatur, NE: full frost dates · planting calendar · Nebraska frost dates
Climate data from the nearest NOAA station, Onawa 3Nw, Ia (9.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.