Weather in Bismarck, IL
Updated 2026-08-11 11:00 local time · ZIP codes 61814
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
86°5% rain
95°4% rain97°2% rain96°2% rain96°3% rain89°4% rain92°3% rain86°6% rain83°7% rain
83°5% rain79°11% rain77°18% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 18%).
It feels like 94°F with winds near 14 mph.
83°F, 5% rain chance and 8 mph wind.
Visibility is around 6 mi; gusts may reach 26 mph.
Current temperature is 86°F, wind 14 mph, rain chance up to 18%.
UV index is 6. Sunscreen and sunglasses are sensible for longer outdoor time.
Bismarck weather today
Overcast and 86°F in Bismarck, IL. Today's high is 97°F with a 8% rain chance. Winds are around 14 mph with gusts near 18 mph. Relative humidity is 75%, pressure is 29.95 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Bismarck
Sunrise is at 05:58 AM and sunset is at 07:53 PM. Tomorrow's forecast calls for Mist with a high near 77°F and a low near 69°F. The maximum rain chance is 76%.