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
53°F
Rain Showers
Rain showers. Cloudy. High near 53, with temperatures falling to around 49 in the afternoon. North northwest wind around 23 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for St. Helena
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 53°F | Rain Showers | 23 mph NNW | 86% |
| Tonight | 39°F | Rain Showers | 20 mph NW | 86% |
| Wednesday | 47°F | Rain Showers Likely | 17 to 21 mph WNW | 67% |
| Wednesday Night | 37°F | Rain Showers Likely | 15 mph NW | 72% |
| Thursday | 48°F | Mostly Cloudy | 12 to 15 mph NNW | 13% |
| Thursday Night | 33°F | Mostly Cloudy | 2 to 9 mph N | 0% |
| Friday | 49°F | Partly Sunny | 3 mph ENE | 0% |
| Friday Night | 32°F | Partly Cloudy | 3 mph S | 0% |
| Saturday | 59°F | Mostly Sunny | 3 to 8 mph WSW | 2% |
| Saturday Night | 36°F | Mostly Clear | 6 mph W | 4% |
| Sunday | 61°F | Sunny | 5 to 8 mph SW | 2% |
| Sunday Night | 41°F | Mostly Clear | 9 mph SSW | 1% |
| Monday | 62°F | Sunny | 8 to 14 mph W | 0% |
| Monday Night | 39°F | Mostly Clear | 7 mph WNW | 0% |
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 Nov 3, 2026.