Weather in Diagonal, IA
Updated 2026-09-26 09:00 local time · ZIP codes 50845
Light rain shower
No government weather alerts were returned for this location at the latest update.
Next hours
56°64% rain
57°38% rain57°33% rain59°52% rain58°33% rain
60°26% rain
63°16% rain64°12% rain64°33% rain62°27% rain61°46% rain
59°31% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 64% over the next 12 hours.
It feels like 50°F with winds near 14 mph.
64°F, 12% rain chance and 15 mph wind.
Visibility is around 6 mi; gusts may reach 30 mph.
Current temperature is 56°F, wind 14 mph, rain chance up to 64%.
UV index is 1.
Local weather characteristics in Diagonal
Iowa has a continental climate with hot summers, cold winters, strong winds and a notable spring and summer severe-thunderstorm season.
Diagonal is part of the Midwest weather region. The forecast point is near 40.81°N latitude and 94.34°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Diagonal weather today
Light rain shower and 56°F in Diagonal, IA. Today's high is 64°F with a 91% rain chance. Winds are around 14 mph with gusts near 30 mph. Relative humidity is 97%, pressure is 30.06 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Diagonal
Sunrise is at 07:09 AM and sunset is at 07:08 PM. Tomorrow's forecast calls for Sunny with a high near 69°F and a low near 57°F. The maximum rain chance is 61%.