National Weather Service United States Department of Commerce

Unsettled weather in store for eastern U.S. into weekend

A complex weather system moving across the eastern U.S. will bring a variety of hazardous weather to the region into the weekend. Much colder weather is expected by Saturday, along with numerous showers and accumulating snow in the higher elevations of the Appalachians. Rain and snow will move into northern New England on Sunday.
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Current Conditions

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San Marcos TX

7 Day Forecast

Today

Sunny

Sunny

High: 68 °F

Tonight

Mostly Clear

Mostly
Clear

Low: 45 °F

Sunday

Partly Sunny

Partly
Sunny

High: 73 °F

Sunday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 60 °F

Monday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 77 °F

Monday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 64 °F

Tuesday

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

High: 77 °F

Tuesday
Night

Thunderstorms Likely Chance for Measurable Precipitation 70%

Thunderstorms
Likely

Low: 57 °F

Wednesday

Thunderstorms Likely Chance for Measurable Precipitation 70%

Thunderstorms
Likely

High: 67 °F

Detailed Forecast

  • Today Sunny, with a high near 68. North northeast wind around 10 mph becoming east southeast in the afternoon.
  • Tonight Mostly clear, with a low around 45. East southeast wind around 5 mph.
  • Sunday Partly sunny, with a high near 73. East southeast wind 5 to 15 mph.
  • Sunday Night Mostly cloudy, with a low around 60. South southeast wind 10 to 15 mph.
  • Monday A 20 percent chance of showers and thunderstorms after 8am. Cloudy, with a high near 77. South southeast wind 5 to 15 mph.
  • Monday Night A 20 percent chance of showers and thunderstorms. Cloudy, with a low around 64. South southeast wind 10 to 15 mph.
  • Tuesday Showers and thunderstorms likely, mainly after 8am. Cloudy, with a high near 77. South wind 5 to 10 mph. Chance of precipitation is 60%.
  • Tuesday Night Showers and thunderstorms likely. Cloudy, with a low around 57. East southeast wind 5 to 10 mph becoming north northeast in the evening. Chance of precipitation is 70%.
  • Wednesday Showers and thunderstorms likely. Cloudy, with a high near 67. North wind 10 to 15 mph. Chance of precipitation is 70%.
  • Wednesday Night A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
  • Thursday A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 67.
  • Thursday Night A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 54.
  • Friday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 73.