Hot Temperatures in the Northwest U.S.; Excessive Rainfall Potential in the Southwest U.S.

Hot to extremely hot daytime temperatures remain in place across coastal southern California and the interior Northwest, with the Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring a marginal to slight risk of excessive rainfall across the southwest U.S. this week. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

Lat: 29.89° N Lon: 97.86° W Elev: 597 ft.

Fair

79°F

26°C

Humidity	56%
Wind Speed	Calm
Barometer	29.99 in (1014.6 mb)
Dewpoint	62°F (17°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	2 Sep 11:56 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Caldwell County

Tonight

Mostly clear. Lows in the lower 70s. Northeast winds 5 to 10 mph this evening, becoming light and variable.

Wednesday

Partly cloudy in the morning, then becoming mostly sunny. Highs in the upper 90s. Northwest winds 5 to 10 mph.

Wednesday Night

Clear. Lows in the upper 60s. Northeast winds around 5 mph in the evening, becoming light and variable.

Thursday

Mostly sunny. Hot with highs around 101. Southwest winds around 5 mph, becoming southeast around 5 mph in the afternoon.

Thursday Night

Partly cloudy. Lows in the lower 70s. South winds 5 to 10 mph.

Friday

Partly cloudy. Highs in the upper 90s.

Friday Night

Mostly cloudy. Lows in the lower 70s.

Saturday And Saturday Night

Partly cloudy with a chance of showers with a slight chance of thunderstorms. Highs in the mid 90s. Lows in the lower 70s. Chance of rain 30 percent.

Sunday

Partly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent.

Sunday Night

A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 70s. Chance of rain 40 percent.

Monday

Partly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent.

Monday Night

Partly cloudy. A chance of showers with a slight chance of thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the lower 70s. Chance of rain 30 percent.

Tuesday

Partly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent.