Knox, IN Weather & Growing Conditions
Today
82°F
Sunny
Sunny, with a high near 82. South wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 0 to 5 mph S | 0% |
| Tonight | 60°F | Mostly Clear | 0 to 5 mph S | 0% |
| Wednesday | 83°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph SW | 26% |
| Wednesday Night | 65°F | Chance Showers And Thunderstorms | 0 to 5 mph SW | 78% |
| Thursday | 79°F | Showers And Thunderstorms Likely | 5 mph SW | 78% |
| Thursday Night | 62°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 0 to 5 mph S | 63% |
| Friday | 81°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 17% |
| Friday Night | 63°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 17% |
| Saturday | 83°F | Mostly Sunny | 5 mph SW | 12% |
| Saturday Night | 67°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph SW | 15% |
| Sunday | 85°F | Slight Chance Rain Showers then Mostly Sunny | 5 to 10 mph SW | 15% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 10 mph SW | 35% |
| Monday | 85°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 35% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph SW | 45% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Knox, IN
Last spring frost
Apr 26
First fall frost
Oct 19
Growing season
174 days
Hardiness zone
5b
Explore more for Knox, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Knox Wwtp, In (1.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.