Johnson, IN Weather & Growing Conditions
This Afternoon
67°F
Mostly Cloudy
Mostly cloudy. High near 67, with temperatures falling to around 61 in the afternoon. West wind 8 to 13 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Mostly Cloudy | 8 to 13 mph W | 0% |
| Tonight | 47°F | Partly Cloudy | 2 to 7 mph SW | 0% |
| Thursday | 65°F | Sunny | 5 to 10 mph WSW | 0% |
| Thursday Night | 46°F | Partly Cloudy | 3 mph WNW | 1% |
| Friday | 57°F | Partly Sunny | 3 to 12 mph NNW | 1% |
| Friday Night | 37°F | Mostly Clear | 2 to 9 mph N | 0% |
| Saturday | 55°F | Sunny | 2 to 6 mph N | 0% |
| Saturday Night | 33°F | Mostly Clear | 2 mph NNW | 0% |
| Sunday | 58°F | Sunny | 0 to 6 mph NW | 0% |
| Sunday Night | 35°F | Mostly Clear | 2 mph NW | 0% |
| Monday | 63°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 39°F | Clear | 2 mph SW | 1% |
| Tuesday | 64°F | Sunny | 5 mph W | 1% |
| Tuesday Night | 41°F | Mostly Clear | 1 mph WNW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Johnson, IN
Last spring frost
Apr 2
First fall frost
Oct 31
Growing season
209 days
Hardiness zone
6b
Explore more for Johnson, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Mt Carmel, Il (8.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.