| NWS Forecast for: Knox County Issued by: National Weather Service Indianapolis, IN Last Update: 603 AM EDT Sat Aug 15 2026 | |
Today: Partly cloudy. Isolated showers and thunderstorms through early afternoon. Hot with highs in the lower 90s. Southwest winds around 5 mph. Chance of rain 20 percent. Tonight: Mostly clear. Humid with lows in the mid 70s. Southwest winds around 5 mph. Sunday: Mostly sunny with a slight chance of showers and thunderstorms through early afternoon, then partly cloudy with a chance of showers and thunderstorms late in the afternoon. Hot with highs in the lower 90s. West winds 5 to 10 mph. Chance of rain 50 percent. Sunday Night: Partly cloudy. A chance of showers and thunderstorms through the late overnight, then a slight chance of showers toward daybreak. Humid with lows in the lower 70s. Northwest winds around 5 mph. Chance of rain 50 percent. Monday: Partly cloudy. Humid with highs in the mid 80s. North winds 5 to 10 mph. Monday Night: Partly cloudy through the late overnight, then clearing. Lows in the mid 60s. Tuesday And Tuesday Night: Mostly clear. Highs in the mid 80s. Lows in the upper 60s. Wednesday: Partly cloudy with a chance of showers and thunderstorms. Hot with highs around 90. Chance of rain 30 percent. Wednesday Night: Partly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the upper 60s. Chance of rain 30 percent. Thursday Through Friday: Partly cloudy with a 20 percent chance of showers. Highs in the lower 80s. Lows in the lower 60s. | |
| Zone Forecast: Knox County | |
Visit your local NWS office at: https://www.weather.gov/ind |