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Diagonal, IA 7-Day Weather Forecast
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Diagonal Weather Forecast
Diagonal, IA Weather Forecast Date: 627 AM CDT Sat Sep 12 2026
Weather forecast for Diagonal, IA
Today Hi: 80°FHi: 27°C Lo: 60°F Lo: 16°C |
Today... Mostly sunny. Highs around 80. Northwest winds 10 to 15 mph, becoming north this afternoon. |
Sun Hi: 69°FHi: 21°C Lo: 59°F Lo: 15°C |
Sunday... A chance of thunderstorms. Showers. Highs in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 80%. |
| Mon Hi: 85°FHi: 29°C Lo: 69°F Lo: 21°C |
Monday... Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then mostly sunny in the afternoon. Not as cool. Humid with highs in the mid 80s. Southeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50%. |
| Tue Hi: 75°FHi: 24°C Lo: 60°F Lo: 16°C |
Tuesday... Showers with a chance of thunderstorms. Highs in the mid 70s. Chance of rain 90%. |
| Wed Hi: 75°FHi: 24°C Lo: 61°F Lo: 16°C |
Wednesday... A chance of thunderstorms. Showers. Highs in the mid 70s. Chance of rain near 100%. |
| Thu Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Thursday... Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 50%. |
| Fri Hi: 75°FHi: 24°C |
Friday... Partly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the mid 70s. Chance of rain 30%. |
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