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Keystone, IA 7-Day Weather Forecast
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Keystone Weather Forecast
Keystone, IA Weather Forecast Date: 641 PM CDT Thu Sep 10 2026
Weather forecast for Keystone, IA
Tonight Lo: 59°F Lo: 15°C |
Tonight... Clear. Lows in the upper 50s. Northeast winds around 5 mph, becoming southeast after midnight. |
Fri Hi: 81°FHi: 27°C Lo: 65°F Lo: 18°C |
Friday... Sunny. Highs in the lower 80s. South winds 5 to 10 mph. |
Sat Hi: 80°FHi: 27°C Lo: 55°F Lo: 13°C |
Saturday... Mostly sunny. A chance of showers in the afternoon. Humid with highs around 80. Southwest winds 5 to 10 mph, becoming northwest in the afternoon. Chance of rain 40%. |
Sun Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Sunday... Partly sunny with a chance of showers. Highs in the mid 70s. Chance of rain 50%. |
Mon Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Monday... A chance of thunderstorms. Showers likely, mainly in the morning. Highs in the lower 80s. Chance of rain 70%. |
| Tue Hi: 71°FHi: 22°C Lo: 55°F Lo: 13°C |
Tuesday... Showers likely, mainly in the morning. Not as warm with highs in the lower 70s. Chance of rain 70%. |
| Wed Hi: 70°FHi: 21°C Lo: 59°F Lo: 15°C |
Wednesday... Mostly cloudy with a 50% chance of showers. Lows in the mid 50s. Highs around 70. |
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