Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Patterson Memorial (KPTN)

Lat: 29.72° N Lon: 91.33° W Elev: 10 ft.

A Few Clouds

82°F

28°C

Humidity NA
Wind Speed W 3 mph
Barometer 29.95 in (1014.4 mb)
Dewpoint NA
Visibility 10.00 mi
Last update 27 Aug 4:56 am CDT
Detailed forecast for

Lower St. Mary

Today
Partly sunny with thunderstorms likely. Showers likely, mainly this morning. Highs in the upper 80s. North winds around 5 mph, becoming west around 5 mph this afternoon. Chance of rain 70 percent. Heat index values up to 105.
Tonight
Mostly cloudy with a chance of showers and thunderstorms. Humid with lows in the mid 70s. Southwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent.
Friday
Partly sunny with a chance of showers and thunderstorms. Humid with highs in the upper 80s. North winds around 5 mph. Chance of rain 50 percent.
Friday Night
Partly cloudy. Humid with lows in the mid 70s. Light and variable winds, becoming northeast around 5 mph after midnight.
Saturday
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs around 90. Northeast winds around 5 mph. Chance of rain 50 percent. Heat index values up to 105.
Saturday Night
Mostly clear. Lows in the mid 70s.
Sunday
Mostly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs around 90. Temperature falling into the mid 80s in the afternoon. Chance of rain 70 percent. Heat index values up to 105.
Sunday Night
Partly cloudy in the evening, then clearing. Lows in the mid 70s.
Monday
Mostly sunny. A chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs around 90. Chance of rain 70 percent. Heat index values up to 105.
Monday Night
Partly cloudy in the evening, then clearing. Lows in the mid 70s.
Tuesday
Mostly sunny with a chance of showers and thunderstorms. Highs around 90. Chance of rain 50 percent. Heat index values up to 110.
Tuesday Night
Partly cloudy in the evening, then clearing. Lows in the mid 70s.
Wednesday
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 110.



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306 AM CDT Thu Aug 27 2026
 
 

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