Saint John the Baptist Parish, LA Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Saint John the Baptist Parish, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms. Mostly sunny. High near 94, with temperatures falling to around 89 in the afternoon. Heat index values as high as 107. South wind around 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Saint John the Baptist Parish so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 3 of 3 mapped cities in Saint John the Baptist Parish.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 10 to Jul 16, 2026
- Latest sync
- Jul 10, 2026 3:11 PM CDT
- Forecast office
- LIX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint John the Baptist Parish
This Afternoon looks like the warmest upcoming period in Saint John the Baptist Parish at 94 degrees F.
Monday Night is the coolest period ahead with temperatures near 75 degrees F.
The strongest winds are forecast for This Afternoon at about 5 mph S.
Precipitation is mentioned in 14 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 10, 2026 3:11 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LIX
- Radar station
- KLIX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 79. South wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Showers and thunderstorms likely after 11am. Mostly sunny. High near 93, with temperatures falling to around 89 in the afternoon. Heat index values as high as 108. Southeast wind 0 to 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 78. South wind 0 to 5 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 10am, then showers and thunderstorms. Mostly sunny, with a high near 92. Southwest wind 0 to 5 mph. Chance of precipitation is 90%.
Showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind 0 to 5 mph. Chance of precipitation is 90%.
Showers and thunderstorms before 1pm, then showers and thunderstorms. Mostly cloudy, with a high near 87. West wind around 5 mph. Chance of precipitation is 100%.
Showers and thunderstorms. Mostly cloudy, with a low around 75. Southwest wind 0 to 5 mph.
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely between 7am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 85. Southwest wind around 5 mph.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Southwest wind 0 to 5 mph.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. Northwest wind 0 to 5 mph.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 78. West wind 0 to 5 mph.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. West wind 0 to 5 mph.
A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 78. West wind 0 to 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 10
|
Chance Showers And Thunderstorms
|
94°F |
5 mph
S
|
|
Tonight
Jul 10
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
79°F |
0 to 5 mph
S
|
|
Saturday
Jul 11
|
Showers And Thunderstorms Likely
|
93°F |
0 to 5 mph
SE
|
|
Saturday Night
Jul 11
|
Chance Showers And Thunderstorms then Mostly Clear
|
78°F |
0 to 5 mph
S
|
|
Sunday
Jul 12
|
Showers And Thunderstorms
|
92°F |
0 to 5 mph
SW
|
|
Sunday Night
Jul 12
|
Showers And Thunderstorms
|
76°F |
0 to 5 mph
SW
|
|
Monday
Jul 13
|
Showers And Thunderstorms
|
87°F |
5 mph
W
|
|
Monday Night
Jul 13
|
Showers And Thunderstorms
|
75°F |
0 to 5 mph
SW
|
|
Tuesday
Jul 14
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
85°F |
5 mph
SW
|
|
Tuesday Night
Jul 14
|
Chance Showers And Thunderstorms
|
76°F |
0 to 5 mph
SW
|
|
Wednesday
Jul 15
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
90°F |
0 to 5 mph
NW
|
|
Wednesday Night
Jul 15
|
Chance Showers And Thunderstorms then Partly Cloudy
|
78°F |
0 to 5 mph
W
|
|
Thursday
Jul 16
|
Mostly Sunny then Chance Showers And Thunderstorms
|
92°F |
0 to 5 mph
W
|
|
Thursday Night
Jul 16
|
Chance Showers And Thunderstorms then Partly Cloudy
|
78°F |
0 to 5 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Saint John the Baptist Parish.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Saint John the Baptist Parish.
Largest mapped city population in this region: 29,872.
