Janusick, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Sun & Moon
Weather Quote O' the Day


Janusick, IL Weather Forecast


Janusick, IL Weather Forecast Date: 1251 PM CST Wed Nov 11 2026
The area/counties/county of: La Salle, including the cities of: Ottawa, Streator, La Salle, Mendota, and Marseilles.or toggle through each period.
This Afternoon... Rain and a chance of thunderstorms early in the afternoon, then a chance of rain and a slight chance of thunderstorms late. Cooler. Nearly steady temperatures around 50. North winds around 10 mph. Chance of precipitation 80%.
Tonight... Mostly cloudy. Lows in the upper 30s. North winds 5 to 10 mph.
Thursday... Mostly cloudy and breezy. Highs in the mid 40s. North winds 15 to 20 mph with gusts up to 30 mph.
Thursday Night... Partly cloudy. Lows around 30. North winds 10 to 15 mph. Gusts up to 25 mph in the evening.
Friday... Partly cloudy. Highs in the lower 40s. North winds 10 to 15 mph.
Friday Night... Clear. Lows in the mid 20s.
Saturday... Mostly sunny. Highs in the mid 40s.
Saturday Night... Clear. Lows in the mid 20s.
Sunday... Mostly sunny. Highs in the upper 40s.
Sunday Night... Mostly clear. Lows in the upper 20s.
Monday... Mostly sunny. Highs around 50.
Monday Night... Mostly clear. Lows in the upper 20s.
Weather World