Weather in Williamson, IA
Updated 2026-09-26 11:45 local time · ZIP codes 50272
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
59°22% rain
66°11% rain
70°4% rain71°14% rain71°14% rain70°16% rain67°18% rain68°19% rain
66°20% rain
65°20% rain64°18% rain63°27% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 27%).
It feels like 53°F with winds near 12 mph.
70°F, 4% rain chance and 13 mph wind.
Visibility is around 6 mi; gusts may reach 27 mph.
Current temperature is 59°F, wind 12 mph, rain chance up to 27%.
UV index is 1.
Local weather characteristics in Williamson
Iowa has a continental climate with hot summers, cold winters, strong winds and a notable spring and summer severe-thunderstorm season.
Williamson is part of the Midwest weather region. The forecast point is near 41.09°N latitude and 93.25°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.
Williamson weather today
Overcast and 59°F in Williamson, IA. Today's high is 71°F with a 80% rain chance. Winds are around 12 mph with gusts near 21 mph. Relative humidity is 78%, pressure is 30.10 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Williamson
Sunrise is at 07:04 AM and sunset is at 07:04 PM. Tomorrow's forecast calls for Overcast with a high near 69°F and a low near 59°F. The maximum rain chance is 76%.