Weather in Vandalia, IL
Updated 2026-09-26 10:00 local time · ZIP codes 62471
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
63°13% rain66°11% rain67°11% rain68°10% rain70°10% rain67°11% rain66°12% rain67°11% rain67°12% rain
67°11% rain66°11% rain
66°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 13%).
It feels like 58°F with winds near 6 mph.
70°F, 10% rain chance and 2 mph wind.
Visibility is around 6 mi; gusts may reach 12 mph.
Current temperature is 63°F, wind 6 mph, rain chance up to 13%.
UV index is 2.
Local weather characteristics in Vandalia
Illinois has four distinct seasons with hot, humid summers, cold winters, strong frontal changes and frequent spring and summer thunderstorms.
Vandalia is part of the Midwest weather region. The forecast point is near 38.96°N latitude and 89.09°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.
Vandalia weather today
Overcast and 63°F in Vandalia, IL. Today's high is 70°F with a 11% rain chance. Winds are around 6 mph with gusts near 8 mph. Relative humidity is 53%, pressure is 30.17 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Vandalia
Sunrise is at 06:47 AM and sunset is at 06:47 PM. Tomorrow's forecast calls for Sunny with a high near 77°F and a low near 56°F. The maximum rain chance is 17%.