Weather in Callao, MO
Updated 2026-09-26 08:45 local time · ZIP codes 63534
Patchy rain nearby
No government weather alerts were returned for this location at the latest update.
Next hours
60°20% rain59°21% rain
58°20% rain59°21% rain59°19% rain59°31% rain
56°44% rain56°54% rain56°48% rain58°32% rain59°28% rain
59°16% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 54% over the next 12 hours.
It feels like 56°F with winds near 7 mph.
59°F, 19% rain chance and 12 mph wind.
Visibility is around 6 mi; gusts may reach 24 mph.
Current temperature is 60°F, wind 7 mph, rain chance up to 54%.
UV index is 0.
Local weather characteristics in Callao
Missouri sits where different air masses often meet, producing hot humid summers, cold winter spells, rapid weather changes and frequent thunderstorms.
Callao is part of the Midwest weather region. The forecast point is near 39.76°N latitude and 92.62°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.
Callao weather today
Patchy rain nearby and 60°F in Callao, MO. Today's high is 61°F with a 67% rain chance. Winds are around 7 mph with gusts near 18 mph. Relative humidity is 68%, pressure is 30.12 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Callao
Sunrise is at 07:02 AM and sunset is at 07:01 PM. Tomorrow's forecast calls for Overcast with a high near 69°F and a low near 57°F. The maximum rain chance is 66%.