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Area Conditions for Port Allen, LA
 
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Temperature: 92 oF
Feels Like: 103 oF
Humidity: 58%
Barometer: 29.87
Dew Point: 75 oF
Wind Dir.: WSW
Wind Speed: 8 mph
Sunrise: 6:44
Sunset: 7:21
Observation: Partly Cloudy
Radar
As reported at BATON ROUGE, LA at 3:00 PM

5-day Forecast for Port Allen, LA
Date Sun
9/6
Mon
9/7
Tue
9/8
Wed
9/9
Thu
9/10
Weather Condition Mostly Cloudy Thunder Storms Thunder Storms Thunder Storms Thunder Storms
Weather Mostly Cloudy Thunder Storms Thunder Storms Thunder Storms Thunder Storms
Temperature (°F)
Low/High
74/93 76/94 74/91 74/90 74/90
Feels Like (°F)
Low/High
88/105 78/109 76/105 76/100 76/100
Dew Point (°F) 76 77 76 75 75
Humidity (%) 63 74 76 77 74
Wind Speed (mph) 3 3 5 5 4
Precipitation
Chance
(%)
- 46 42 59 55
Precipitation
Amount
(inches)
S=Snow, L=Liquid
None Rain
0.36
Rain
0.14
Rain
0.18
Rain
0.21
Evapo-
transpiration

(inches/day)
0.17 0.15 0.15 0.15 0.14

County Forecast for Port Allen , LA
 
070200-
West Baton Rouge-
Including the cities of Port Allen, Addis, and Brusly
121 PM CDT Sun Sep 6 2026

..heat advisory in effect from 11 am to 7 pm cdt monday   
This afternoon   Sunny with a chance of showers and thunderstorms. Near steady temperature in the lower 90s. West winds around 5 mph. Chance of rain 30 percent. Heat index values up to 107.
Tonight   Mostly clear with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the mid 70s. West winds around 5 mph. Chance of rain 20 percent.
Labor day   Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 90s. Northwest winds around 5 mph. Chance of rain 40 percent. Heat index values up to 110.
Monday night   Mostly cloudy with thunderstorms likely with a chance of showers in the evening, then partly cloudy after midnight. Humid with lows in the mid 70s. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 60 percent.
Tuesday   Mostly sunny. Showers and thunderstorms likely in the afternoon. Humid with highs in the lower 90s. East winds around 5 mph. Chance of rain 70 percent. Heat index values up to 109.
Tuesday night   Mostly clear. Lows in the mid 70s.
Wednesday   Mostly sunny. A slight chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs in the lower 90s. Chance of rain 70 percent.
Wednesday night   Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 70s. Chance of rain 20 percent.
Thursday   Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 105.
Thursday night   Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 70s. Chance of rain 20 percent.
Friday   Mostly sunny. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 105.
Friday night   Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. Chance of rain 20 percent.
Saturday   Mostly sunny. A slight chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 60 percent. Heat index values up to 105.

DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
Hot and Dry for Central US Labor Day Weekend

Hot, humid conditions persist through the holiday weekend with scattered showers and thunderstorms likely. » More DTN Weather Commentary

Posted at 11:59AM Fri Sep 4, 2026 CDT
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