Weather in Glenallen, MO
Updated 2026-09-26 12:30 local time · ZIP codes 63751
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
76°9% rain79°9% rain81°9% rain
82°11% rain81°9% rain80°9% rain77°9% rain
72°9% rain70°9% rain68°10% rain68°10% rain67°10% 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 11%).
It feels like 71°F with winds near 5 mph.
70°F, 9% rain chance and 7 mph wind.
Visibility is around 6 mi; gusts may reach 18 mph.
Current temperature is 76°F, wind 5 mph, rain chance up to 11%.
UV index is 6. Sunscreen and sunglasses are sensible for longer outdoor time.
Local weather characteristics in Glenallen
Missouri sits where different air masses often meet, producing hot humid summers, cold winter spells, rapid weather changes and frequent thunderstorms.
Glenallen is part of the Midwest weather region. The forecast point is near 37.32°N latitude and 90.03°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.
Glenallen weather today
Overcast and 76°F in Glenallen, MO. Today's high is 82°F with a 10% rain chance. Winds are around 5 mph with gusts near 5 mph. Relative humidity is 21%, pressure is 30.11 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Glenallen
Sunrise is at 06:51 AM and sunset is at 06:51 PM. Tomorrow's forecast calls for Overcast with a high near 80°F and a low near 64°F. The maximum rain chance is 6%.