Geismar Weather Forecast
- 66
- 83
Rain Showers
- 72
- 83
Mostly Cloudy
- 74
- 86
Mostly Cloudy
- 74
- 87
Mostly Cloudy
- 73
- 88
Slight Chance Thunderstorms
- 68
- 87
Chance Thunderstorms
Today 31 Mar Western Ascension
Showers with Thunderstorms likely in the Morning, then mostly sunny with a slight chance of Showers and Thunderstorms in the afternoon. Some Thunderstorms may be severe with damaging Winds and large hail. Locally heavy rainfall possible in the morning. Highs in the lower 80s. Southwest Winds 5 to 10 Mph, becoming west in the afternoon. Chance of rain 90 percent.
Tonight 31 Mar Western Ascension
Partly cloudy. Lows in the mid 60s. North Winds around 5 Mph, becoming northeast after midnight.
Geismar Temperature Statistics
March Temperature
Baton Rouge, Baton Rouge Metropolitan, Ryan Field (23 miles)
Lowest 21 March, 2025
35.7 °FAverage March
64.4 °FHighest 14 March, 2025
85.6 °F
Climate (2020–Present)
Baton Rouge, Baton Rouge Metropolitan, Ryan Field (23 miles)
Average Low 2020–2025
60.2 °FAverage 2020–2025
70 °FAverage High 2020–2025
80.7 °F