Weather in Union Star, MO
Updated 2026-09-26 11:45 local time · ZIP codes 64494
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
68°19% rain72°15% rain73°16% rain
70°53% rain69°52% rain70°24% rain
72°26% rain73°47% rain
71°28% rain70°29% rain
69°76% rain68°65% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
Rain chance reaches about 76% over the next 12 hours.
It feels like 63°F with winds near 13 mph.
71°F, 17% rain chance and 13 mph wind.
Visibility is around 6 mi; gusts may reach 23 mph.
Current temperature is 68°F, wind 13 mph, rain chance up to 76%.
UV index is 2.
Local weather characteristics in Union Star
Missouri sits where different air masses often meet, producing hot humid summers, cold winter spells, rapid weather changes and frequent thunderstorms.
Union Star is part of the Midwest weather region. The forecast point is near 39.98°N latitude and 94.59°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.
Union Star weather today
Overcast and 68°F in Union Star, MO. Today's high is 73°F with a 82% rain chance. Winds are around 13 mph with gusts near 20 mph. Relative humidity is 73%, pressure is 30.04 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Union Star
Sunrise is at 07:09 AM and sunset is at 07:09 PM. Tomorrow's forecast calls for Light rain shower with a high near 74°F and a low near 62°F. The maximum rain chance is 76%.