Above Average Temperatures in the West; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures will continue across the West this week, potentially breaking some daily high temperature records. A storm system dropping south out of Canada will bring a wintry mix to the Upper Midwest and Great Lakes Tuesday, pushing into the Central Appalachians and interior Northeast on Wednesday. Read More >

Current conditions at

San Marcos, San Marcos Municipal Airport (KHYI)

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

Overcast

50°F

10°C

Humidity 48%
Wind Speed Calm
Barometer 30.30 in (1025.9 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 13 Jan 4:56 am CST
Detailed forecast for

Caldwell County

Today
Mostly cloudy. A chance of showers this morning. Highs in the mid 60s. Southwest winds around 5 mph. Chance of rain 30 percent.
Tonight
Mostly clear. Lows in the lower 40s. Southwest winds around 5 mph.
Wednesday
Sunny. Highs around 70. Northwest winds 15 to 20 mph, becoming north in the afternoon.
Wednesday Night
Clear. Lows in the upper 30s. North winds 10 to 15 mph.
Thursday
Sunny. Highs in the lower 60s. North winds around 5 mph, becoming east in the afternoon.
Thursday Night And Friday
Clear. Lows in the lower 40s. Highs around 70.
Friday Night And Saturday
Mostly clear. Lows around 40. Highs in the mid 60s.
Saturday Night And Sunday
Clear. Lows in the mid 30s. Highs in the mid 60s.
Sunday Night And Martin Luther King Jr Day
Partly cloudy. Lows in the lower 30s. Highs in the lower 60s.



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405 AM CST Tue Jan 13 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database