Weather in Saint Augustine, IL
Updated 2026-09-26 08:45 local time · ZIP codes 61474
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
56°20% rain58°17% rain58°17% rain58°18% rain
58°21% rain59°27% rain57°31% rain
56°67% rain54°73% rain
54°71% rain
55°44% rain56°37% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 73% over the next 12 hours.
It feels like 52°F with winds near 7 mph.
58°F, 17% rain chance and 4 mph wind.
Visibility is around 6 mi; gusts may reach 18 mph.
Current temperature is 56°F, wind 7 mph, rain chance up to 73%.
UV index is 0.
Local weather characteristics in Saint Augustine
Illinois has four distinct seasons with hot, humid summers, cold winters, strong frontal changes and frequent spring and summer thunderstorms.
Saint Augustine is part of the Midwest weather region. The forecast point is near 40.72°N latitude and 90.41°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.
Saint Augustine weather today
Overcast and 56°F in Saint Augustine, IL. Today's high is 59°F with a 76% rain chance. Winds are around 7 mph with gusts near 18 mph. Relative humidity is 73%, pressure is 30.17 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Saint Augustine
Sunrise is at 06:53 AM and sunset is at 06:52 PM. Tomorrow's forecast calls for Sunny with a high near 70°F and a low near 56°F. The maximum rain chance is 57%.