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Janusick, IL 7-Day Night Weather Forecast
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Janusick, IL Weather Forecast
Janusick, IL Weather Forecast Date: 836 PM CDT Wed Sep 16 2026
The area/counties/county of: La Salle, including the cities of: Ottawa, Streator, La Salle, Mendota, and Marseilles.or toggle through each period.
Tonight... Cloudy. A chance of showers and a slight chance of thunderstorms in the evening, then showers with thunderstorms likely after midnight. Locally heavy rainfall possible after midnight. Lows in the upper 60s. East winds 5 to 10 mph. Chance of precipitation 90%.
Thursday... Mostly cloudy. Showers with thunderstorms likely early in the morning, then a chance of showers and thunderstorms late in the morning. Humid with highs in the upper 70s. Southwest winds around 5 mph, becoming northwest in the afternoon. Chance of precipitation 90%.
Thursday Night... Mostly cloudy. Lows in the lower 60s. Northeast winds around 5 mph.
Friday... Mostly cloudy. Isolated showers and thunderstorms. Highs in the upper 70s. East winds 5 to 10 mph. Chance of precipitation 20%.
Friday Night... Partly cloudy. Scattered showers and thunderstorms after midnight. Lows in the upper 60s. Southeast winds 5 to 10 mph. Chance of precipitation 40%.
Saturday... Mostly cloudy. Scattered showers and thunderstorms in the morning, then numerous showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 70%.
Saturday Night... Showers likely with a chance of thunderstorms. Lows in the mid 60s. Chance of precipitation 70%.
Sunday... Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Highs in the mid 70s. Chance of precipitation 50%.
Sunday Night... Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows around 60. Chance of precipitation 60%.
Monday... A chance of showers in the morning. Mostly cloudy. Highs in the lower 70s. Chance of precipitation 50%.
Monday Night... Mostly cloudy with a 40% chance of showers. Lows in the upper 50s.
Tuesday... Mostly cloudy. Highs in the lower 70s.
Tuesday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s.
POP = Probability of Precipitation
Janusick Radar Loop
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