Weather in Walnut, IA
Updated 2026-09-26 11:45 local time · ZIP codes 51577
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
62°26% rain
68°19% rain
69°66% rain68°65% rain67°73% rain67°61% rain67°71% rain67°74% rain
66°44% rain
67°32% rain67°31% rain65°31% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 74% over the next 12 hours.
It feels like 56°F with winds near 16 mph.
68°F, 19% rain chance and 16 mph wind.
Visibility is around 6 mi; gusts may reach 28 mph.
Current temperature is 62°F, wind 16 mph, rain chance up to 74%.
UV index is 3.
Local weather characteristics in Walnut
Iowa has a continental climate with hot summers, cold winters, strong winds and a notable spring and summer severe-thunderstorm season.
Walnut is part of the Midwest weather region. The forecast point is near 41.48°N latitude and 95.22°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.
Walnut weather today
Overcast and 62°F in Walnut, IA. Today's high is 69°F with a 91% rain chance. Winds are around 16 mph with gusts near 28 mph. Relative humidity is 86%, pressure is 30.01 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Walnut
Sunrise is at 07:12 AM and sunset is at 07:11 PM. Tomorrow's forecast calls for Patchy rain nearby with a high near 68°F and a low near 60°F. The maximum rain chance is 79%.