Weather in Flanagan, IL
Updated 2026-08-11 13:15 local time · ZIP codes 61740

Partly cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
72°5% rain
88°5% rain
89°14% rain
87°30% rain
86°19% rain
88°5% rain
84°8% rain
80°8% rain
79°16% rain
78°19% rain
77°20% rain
70°43% rain3-day weather forecast



Weather details
Sunrise, sunset and moon
Weather insights for today
There is a moderate rain chance, peaking near 43%.
It feels like 76°F with winds near 9 mph.
72°F, 5% rain chance and 9 mph wind.
Visibility is around 10 mi; gusts may reach 17 mph.
Current temperature is 72°F, wind 9 mph, rain chance up to 43%.
UV index is 3. Sunscreen and sunglasses are sensible for longer outdoor time.
Flanagan weather today
Partly cloudy and 72°F in Flanagan, IL. Today's high is 91°F with a 36% rain chance. Winds are around 9 mph with gusts near 12 mph. Relative humidity is 94%, pressure is 29.94 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Flanagan
Sunrise is at 06:01 AM and sunset is at 07:59 PM. Tomorrow's forecast calls for Sunny with a high near 81°F and a low near 70°F. The maximum rain chance is 82%.