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Area Conditions for Port Allen, LA
 
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Temperature: 98 oF
Feels Like: 110 oF
Humidity: 46%
Barometer: 29.97
Dew Point: 74 oF
Wind Dir.: SW
Wind Speed: 8 mph
Sunrise: 6:36
Sunset: 7:38
Observation: Sunny
Radar
As reported at BATON ROUGE, LA at 2:00 PM

5-day Forecast for Port Allen, LA
Date Sun
8/23
Mon
8/24
Tue
8/25
Wed
8/26
Thu
8/27
Weather Condition Thunder Storms Thunder Storms Thunder Storms Thunder Storms Thunder Storms
Weather Thunder Storms Thunder Storms Thunder Storms Thunder Storms Thunder Storms
Temperature (°F)
Low/High
79/98 77/97 77/92 77/94 77/89
Feels Like (°F)
Low/High
89/107 79/106 79/105 79/105 79/101
Dew Point (°F) 74 75 76 76 76
Humidity (%) 51 61 71 65 74
Wind Speed (mph) 3 4 4 5 5
Precipitation
Chance
(%)
40 40 40 51 53
Precipitation
Amount
(inches)
S=Snow, L=Liquid
Rain
0.11
Rain
0.07
Rain
0.28
Rain
0.17
Rain
0.39
Evapo-
transpiration

(inches/day)
0.2 0.18 0.17 0.19 0.16

County Forecast for Port Allen , LA
 
240200-
West Baton Rouge-
Including the cities of Port Allen, Addis, and Brusly
121 PM CDT Sun Aug 23 2026

..heat advisory in effect until 8 pm cdt this evening   
This afternoon   Sunny with a chance of thunderstorms with a slight chance of showers. Near steady temperature in the upper 90s. West winds around 5 mph. Chance of rain 40 percent. Heat index values up to 112.
Tonight   Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Humid with lows in the upper 70s. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 107 early in the evening.
Monday   Sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 90s. West winds around 5 mph. Chance of rain 20 percent. Heat index values up to 113.
Monday night   A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Humid with lows in the upper 70s. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 107 early in the evening.
Tuesday   Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 90s. Southwest winds around 5 mph. Chance of rain 50 percent. Heat index values up to 108.
Tuesday night   Mostly clear. Lows in the upper 70s.
Wednesday   Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Chance of rain 50 percent. Heat index values up to 110.
Wednesday night   Partly cloudy in the evening, then clearing. A slight chance of thunderstorms in the evening. A slight chance of showers. Lows in the upper 70s. Chance of rain 20 percent.
Thursday   Mostly sunny. A 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.
Thursday night   Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the mid 70s. Chance of rain 30 percent.
Friday   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 mid 90s. Chance of rain 50 percent.
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   Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 40 percent.

DTN Weather Summary

Bryce Anderson image
Bryce Anderson – DTN Meteorologist
System Moving Through Midwest This Weekend, Another Next Week
Posted at 12:17PM Fri Aug 21, 2026 CDT
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