Weather WorldKeystone, IA 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Keystone, IA Weather Forecast
Keystone, IA Weather Forecast Date: 701 PM CDT Sun Sep 06 2026
The area/counties/county of: Benton, including the city of Vinton.or toggle through each period.
Tonight... Mostly cloudy. Lows in the lower 60s. Southeast winds 5 to 10 mph.
Labor Day... Partly sunny. Highs in the lower 80s. Southeast winds 5 to 10 mph.
Monday Night... Partly cloudy. Lows in the mid 60s. Southeast winds 10 to 15 mph.
Tuesday... Partly sunny. Hot with highs around 90. South winds around 10 mph.
Tuesday Night... Showers likely with a chance of thunderstorms in the evening, then showers after midnight. Humid with lows in the upper 60s. South winds 5 to 10 mph, becoming southwest after midnight. Chance of rain 90%.
Wednesday... Partly sunny. Highs in the mid 80s.
Wednesday Night... Mostly clear. Lows in the upper 50s. Highs around 80.
Thursday... Mostly clear. Lows in the upper 50s. Highs around 80.
Thursday Night... Clear. Lows in the upper 50s.
Friday... Sunny. Highs in the mid 80s.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. A chance of showers. Lows in the lower 60s. Chance of rain 40%.
Saturday... Mostly sunny. A chance of showers in the afternoon. Highs in the mid 80s. Chance of rain 30%.
Saturday Night... Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 40%.
POP = Probability of Precipitation
Keystone Radar Loop
Use the map search tool if you want to place a location marker on the radar map...