Johnstown, NE Weather & Growing Conditions
This Afternoon
50°F
Mostly Cloudy
Mostly cloudy, with a high near 50. Northwest wind around 15 mph, with gusts as high as 30 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Mostly Cloudy | 15 mph NW | 11% |
| Tonight | 33°F | Mostly Cloudy | 10 to 15 mph NW | 4% |
| Thursday | 52°F | Mostly Sunny | 5 to 15 mph NNW | 0% |
| Thursday Night | 25°F | Partly Cloudy | 0 to 5 mph NE | 0% |
| Friday | 54°F | Mostly Sunny | 0 to 5 mph S | 0% |
| Friday Night | 34°F | Partly Cloudy | 5 mph SSW | 0% |
| Saturday | 62°F | Sunny | 5 mph WNW | 0% |
| Saturday Night | 35°F | Mostly Clear | 0 to 5 mph W | 0% |
| Sunday | 64°F | Sunny | 5 to 10 mph SW | 0% |
| Sunday Night | 42°F | Clear | 10 to 15 mph SW | 0% |
| Monday | 64°F | Sunny | 5 to 10 mph WNW | 0% |
| Monday Night | 37°F | Mostly Clear | 0 to 5 mph NNW | 0% |
| Tuesday | 59°F | Mostly Sunny | 5 mph SSW | 0% |
| Tuesday Night | 38°F | Partly Cloudy | 5 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Johnstown, NE
Last spring frost
May 2
First fall frost
Oct 8
Growing season
158 days
Hardiness zone
5b
Explore more for Johnstown, NE: full frost dates · planting calendar · Nebraska frost dates
Climate data from the nearest NOAA station, Ainsworth, Ne (14.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 5, 2026.