Weather in Greencastle, IN
Updated 2026-09-26 12:00 local time · ZIP codes 46135
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
64°1% rain
67°5% rain
68°8% rain
69°9% rain70°8% rain70°8% rain68°6% rain66°14% rain
62°16% rain60°17% rain
59°10% rain
57°9% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 17%).
It feels like 57°F with winds near 9 mph.
70°F, 8% rain chance and 5 mph wind.
Visibility is around 6 mi; gusts may reach 14 mph.
Current temperature is 64°F, wind 9 mph, rain chance up to 17%.
UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.
Local weather characteristics in Greencastle
Indiana has a humid continental-to-subtropical transition, with warm humid summers, cold winters and frequent changes as weather systems move through the Midwest.
Greencastle is part of the Midwest weather region. The forecast point is near 39.64°N latitude and 86.86°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Greencastle weather today
Sunny and 64°F in Greencastle, IN. Today's high is 70°F with a 8% rain chance. Winds are around 9 mph with gusts near 11 mph. Relative humidity is 44%, pressure is 30.17 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Greencastle
Sunrise is at 07:38 AM and sunset is at 07:38 PM. Tomorrow's forecast calls for Overcast with a high near 70°F and a low near 52°F. The maximum rain chance is 13%.