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Teheran, IL Weather Forecast
Teheran, IL Weather Forecast Date: 107 PM CST Mon Nov 02 2026
The area/counties/county of: Mason, including the city of Havana.or toggle through each period.
This Afternoon... Mostly cloudy. Near steady temperature in the lower 60s. South winds around 15 mph with gusts up to 25 mph.
Tonight... Mostly cloudy. Near steady temperature in the lower 60s. South winds 15 to 20 mph with gusts up to 30 mph.
Tuesday... A slight chance of thunderstorms. Rain. Highs in the lower 70s. South winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 90%.
Tuesday Night... Cloudy. Rain, mainly in the evening. Cooler with lows in the lower 50s. South winds 15 to 20 mph with gusts up to 30 mph, diminishing to around 10 mph with gusts up to 20 mph after midnight. Chance of rain 90%.
Wednesday... Mostly cloudy in the morning, then becoming partly sunny. Cooler with highs in the lower 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Wednesday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 40s.
Thursday... Mostly sunny. Highs in the lower 60s.
Thursday Night... Mostly cloudy. Lows in the lower 40s. Highs in the upper 50s.
Friday... Mostly cloudy. Lows in the lower 40s. Highs in the upper 50s.
Friday Night... Mostly cloudy. Lows in the upper 30s.
Saturday... Mostly sunny. Highs in the upper 50s.
Saturday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 30s.
POP = Probability of Precipitation
Teheran Radar Loop
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