Weather World
Williamstown, IN 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Williamstown, IN Weather Forecast
Williamstown, IN Weather Forecast Date: 728 AM EDT Tue Sep 29 2026
The area/counties/county of: Rush, including the city of Rushville.or toggle through each period.
Today... Patchy fog through early afternoon. Sunny. Highs in the upper 70s. South winds around 5 mph.
Tonight... Mostly clear through the late overnight, then becoming mostly cloudy. Lows in the mid 50s. Southeast winds around 5 mph.
Wednesday... Partly cloudy. Highs in the lower 80s. South winds around 5 mph.
Wednesday Night... Partly cloudy. Lows in the lower 60s. South winds around 5 mph. Gusts up to 20 mph toward daybreak.
Thursday... Partly cloudy. Highs in the upper 80s. Southwest winds 5 to 10 mph with gusts up to 20 mph.
Thursday Night... Partly cloudy through the late overnight, then mostly cloudy with a chance of showers toward daybreak. Lows in the mid 60s. Chance of rain 40%.
Friday... Showers. Not as warm with highs in the mid 70s. Chance of rain 80%.
Friday Night... Mostly cloudy with a 50% chance of showers. Cooler with lows in the mid 50s.
Saturday... Mostly cloudy with a 40% chance of showers. Highs in the mid 60s. Lows in the mid 50s.
Saturday Night... Mostly cloudy with a 40% chance of showers. Highs in the mid 60s. Lows in the mid 50s.
Sunday... Mostly cloudy with a chance of showers through early afternoon, then partly cloudy with a slight chance of showers late in the afternoon. Highs in the mid 60s. Chance of rain 30%.
Sunday Night... Partly cloudy through the late overnight, then clearing. Lows in the mid 40s.
POP = Probability of Precipitation
Williamstown Radar Loop
Use the map search tool if you want to place a location marker on the radar map...