Harlan, IN Weather & Growing Conditions
Today
83°F
Sunny
Sunny, with a high near 83. South wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 0 mph | 0% |
| Tonight | 59°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Wednesday | 86°F | Sunny | 0 to 5 mph SW | 0% |
| Wednesday Night | 66°F | Partly Cloudy then Chance Showers And Thunderstorms | 0 to 5 mph SW | 47% |
| Thursday | 82°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph SW | 67% |
| Thursday Night | 65°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 67% |
| Friday | 83°F | Showers And Thunderstorms Likely | 0 to 5 mph SW | 59% |
| Friday Night | 65°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph SW | 59% |
| Saturday | 84°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 18% |
| Saturday Night | 64°F | Chance Showers And Thunderstorms | 0 to 10 mph W | 31% |
| Sunday | 85°F | Slight Chance Showers And Thunderstorms | 5 to 15 mph SW | 31% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms | 5 to 15 mph SW | 48% |
| Monday | 87°F | Chance Showers And Thunderstorms | 10 to 15 mph SW | 48% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 to 15 mph SW | 63% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Harlan, IN
Last spring frost
Apr 27
First fall frost
Oct 19
Growing season
174 days
Hardiness zone
6a
Explore more for Harlan, IN: full frost dates · planting calendar · Indiana frost dates
Climate data from the nearest NOAA station, Woodburn 3N, In (3.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.