Saint Mary Parish, LA Weather Forecast
County weather hub
Showers And Thunderstorms Likely
Compare major city weather across Saint Mary Parish, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Showers and thunderstorms likely before 1pm, then showers and thunderstorms likely between 1pm and 4pm, then showers and thunderstorms likely. Partly sunny, with a high near 87. West wind 0 to 5 mph. Chance of precipitation is 60%.
County Weather Overview
This county weather page brings together forecast coverage for Saint Mary Parish so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 6 of 6 mapped cities in Saint Mary Parish.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 12, 2026 4:38 PM CDT
- Forecast office
- LCH
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Mary Parish
Friday looks like the warmest upcoming period in Saint Mary Parish at 91 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 76 degrees F.
The strongest winds are forecast for Tuesday at about 0 to 5 mph W.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 12, 2026 4:38 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- LCH
- Radar station
- KLCH
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely before 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 76. West wind 0 to 5 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 10am, then a chance of showers and thunderstorms between 10am and 1pm. Partly sunny, with a high near 90. Southwest wind 0 to 5 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 77. Northwest wind 0 to 5 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 90. East wind 0 to 5 mph.
Partly cloudy, with a low around 78.
Mostly sunny, with a high near 91.
Partly cloudy, with a low around 78.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Showers And Thunderstorms Likely
|
87°F |
0 to 5 mph
W
|
|
Tuesday Night
Jul 14
|
Showers And Thunderstorms Likely
|
76°F |
0 to 5 mph
W
|
|
Wednesday
Jul 15
|
Chance Showers And Thunderstorms
|
90°F |
0 to 5 mph
SW
|
|
Wednesday Night
Jul 15
|
Slight Chance Showers And Thunderstorms
|
77°F |
0 to 5 mph
NW
|
|
Thursday
Jul 16
|
Mostly Sunny
|
90°F |
0 to 5 mph
E
|
|
Thursday Night
Jul 16
|
Partly Cloudy
|
78°F |
0 to 5 mph
SW
|
|
Friday
Jul 17
|
Mostly Sunny
|
91°F |
0 to 5 mph
W
|
|
Friday Night
Jul 17
|
Partly Cloudy
|
78°F |
0 to 5 mph
W
|
|
Saturday
Jul 18
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
91°F |
0 to 5 mph
W
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
77°F |
0 to 5 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Saint Mary Parish.
Coverage
Forecast coverage currently spans 6 of 6 mapped cities in Saint Mary Parish.
Largest mapped city population in this region: 10,742.
