St. Helena, NE Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Helena, a village in Cedar County, Nebraska.
This Afternoon
85°F
Mostly Sunny
Mostly sunny. High near 85, with temperatures falling to around 83 in the afternoon. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.
7-day forecast for St. Helena
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Mostly Sunny | 9 to 13 mph SW | 3% |
| Tonight | 62°F | Mostly Cloudy then Slight Chance Rain Showers | 9 mph NNW | 20% |
| Saturday | 70°F | Slight Chance Rain Showers then Cloudy | 8 to 12 mph NNW | 21% |
| Saturday Night | 58°F | Cloudy then Slight Chance Rain Showers | 8 to 12 mph NNE | 15% |
| Sunday | 64°F | Rain Showers Likely | 9 to 13 mph NE | 58% |
| Sunday Night | 55°F | Showers And Thunderstorms | 10 mph ENE | 82% |
| Monday | 61°F | Showers And Thunderstorms Likely | 10 mph ENE | 82% |
| Monday Night | 50°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 9 mph ENE | 40% |
| Tuesday | 65°F | Mostly Cloudy | 5 to 9 mph E | 6% |
| Tuesday Night | 50°F | Mostly Cloudy | 8 mph SE | 2% |
| Wednesday | 69°F | Partly Sunny | 7 to 13 mph SSE | 14% |
| Wednesday Night | 55°F | Chance Rain Showers | 9 mph SE | 46% |
| Thursday | 69°F | Chance Rain Showers | 10 mph SSE | 46% |
| Thursday Night | 56°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 8 mph SE | 19% |
Forecast source: National Weather Service (api.weather.gov) for St. Helena (42.811, -97.249). Updated through the day.
Growing snapshot for St. Helena
Last spring frost
Apr 27
First fall frost
Oct 11
Growing season
164 days
Hardiness zone
5a
More local growing data for St. Helena: nearby ZIP 68774 weather · frost dates · planting calendar · Nebraska frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Yankton 2 E, Sd (6.4 mi from St. Helena). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.