Johnstown, NE Weather & Growing Conditions
Overnight
59°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 2am and 3am, then a chance of showers and thunderstorms. Cloudy, with a low around 59. North northeast wind around 5 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Slight Chance Showers And Thunderstorms | 5 mph NNE | 35% |
| Saturday | 67°F | Chance Rain Showers then Mostly Cloudy | 5 to 10 mph N | 33% |
| Saturday Night | 55°F | Chance Rain Showers | 10 mph NE | 59% |
| Sunday | 61°F | Rain Showers Likely | 10 mph ENE | 72% |
| Sunday Night | 52°F | Showers And Thunderstorms | 5 to 10 mph ENE | 85% |
| Monday | 61°F | Rain Showers Likely | 5 to 10 mph NE | 74% |
| Monday Night | 49°F | Chance Rain Showers | 5 to 10 mph ESE | 29% |
| Tuesday | 65°F | Mostly Cloudy | 5 to 15 mph SSE | 14% |
| Tuesday Night | 53°F | Mostly Cloudy then Slight Chance Rain Showers | 10 to 15 mph SSE | 19% |
| Wednesday | 69°F | Chance Rain Showers | 15 to 20 mph S | 28% |
| Wednesday Night | 55°F | Chance Showers And Thunderstorms | 10 to 15 mph S | 36% |
| Thursday | 72°F | Chance Rain Showers then Partly Sunny | 5 to 10 mph S | 32% |
| Thursday Night | 56°F | Mostly Cloudy | 5 to 10 mph SSE | 14% |
| Friday | 72°F | Partly Sunny | 10 to 15 mph SSE | 14% |
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 Sep 19, 2026.