Weather in Geismar, LA
Updated 2026-08-11 12:00 local time · ZIP codes 70734
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
90°4% rain96°3% rain98°2% rain98°1% rain98°1% rain97°1% rain94°1% rain88°5% rain
85°5% rain83°8% rain82°8% rain81°9% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 9%).
It feels like 101°F with winds near 2 mph.
85°F, 5% rain chance and 7 mph wind.
Visibility is around 10 mi; gusts may reach 14 mph.
Current temperature is 90°F, wind 2 mph, rain chance up to 9%.
UV index is 10. Use shade, sunscreen, a hat and sunglasses.
Geismar weather today
Sunny and 90°F in Geismar, LA. Today's high is 98°F with a 6% rain chance. Winds are around 2 mph with gusts near 2 mph. Relative humidity is 63%, pressure is 30.15 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Geismar
Sunrise is at 06:28 AM and sunset is at 07:49 PM. Tomorrow's forecast calls for Sunny with a high near 97°F and a low near 76°F. The maximum rain chance is 17%.