Weather in Decatur, IN
Updated 2026-09-26 10:00 local time · ZIP codes 46733
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
54°8% rain57°6% rain60°4% rain63°3% rain65°2% rain66°2% rain67°1% rain67°1% rain66°3% rain64°4% rain
60°7% rain
58°6% 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 8%).
It feels like 51°F with winds near 5 mph.
67°F, 1% rain chance and 6 mph wind.
Visibility is around 6 mi; gusts may reach 9 mph.
Current temperature is 54°F, wind 5 mph, rain chance up to 8%.
UV index is 1.
Local weather characteristics in Decatur
Indiana has a humid continental-to-subtropical transition, with warm humid summers, cold winters and frequent changes as weather systems move through the Midwest.
Decatur is part of the Midwest weather region. The forecast point is near 40.83°N latitude and 84.93°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.
Decatur weather today
Sunny and 54°F in Decatur, IN. Today's high is 67°F with a 7% rain chance. Winds are around 5 mph with gusts near 7 mph. Relative humidity is 76%, pressure is 30.22 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Decatur
Sunrise is at 07:31 AM and sunset is at 07:30 PM. Tomorrow's forecast calls for Sunny with a high near 68°F and a low near 49°F. The maximum rain chance is 5%.