Johnson, IN Weather & Growing Conditions
Today
97°F
Mostly Sunny
Mostly sunny. High near 97, with temperatures falling to around 95 in the afternoon. West southwest wind 3 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 97°F | Mostly Sunny | 3 to 8 mph WSW | 2% |
| Tonight | 70°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 7 mph NNE | 35% |
| Monday | 86°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 9 mph NNE | 44% |
| Monday Night | 63°F | Chance Showers And Thunderstorms | 6 to 12 mph NNE | 44% |
| Tuesday | 77°F | Chance Rain Showers then Partly Sunny | 8 to 14 mph NNE | 34% |
| Tuesday Night | 58°F | Partly Cloudy | 7 to 14 mph NNE | 6% |
| Wednesday | 75°F | Mostly Sunny | 7 to 12 mph N | 3% |
| Wednesday Night | 56°F | Partly Cloudy | 3 to 12 mph NNE | 0% |
| Thursday | 77°F | Mostly Sunny | 5 to 9 mph NNE | 0% |
| Thursday Night | 58°F | Partly Cloudy | 3 to 9 mph NNE | 1% |
| Friday | 77°F | Mostly Sunny | 5 to 9 mph NNE | 3% |
| Friday Night | 54°F | Partly Cloudy | 3 to 8 mph NE | 2% |
| Saturday | 79°F | Mostly Sunny | 6 mph NE | 3% |
| Saturday Night | 55°F | Partly Cloudy | 5 mph NE | 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 Sep 20, 2026.