National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Hazardous Weather Conditions

Current conditions at

San Antonio Boerne Stage Field (K5C1)

Lat: 29.72°NLon: 98.69°WElev: 1385ft.

63°F

17°C

Humidity 100%
Wind Speed S 5 mph
Barometer 30.26 in
Dewpoint 63°F (17°C)
Visibility NA
Last update 24 Dec 3:55 am CST
Extended Forecast for

Helotes TX

Dense Fog Advisory until December 24, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until December 24, 09:00am

    NOW until 9:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 63 °F

    Patchy Dense
    Fog

  • Wednesday

    Wednesday: Areas of dense fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 76. South wind around 5 mph.

    High: 76 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 62. South wind around 5 mph.

    Low: 62 °F

    Increasing
    Clouds

  • Christmas Day

    Christmas Day: Cloudy through mid morning, then gradual clearing, with a high near 77. South wind around 5 mph.

    High: 77 °F

    Gradual
    Clearing

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. South wind around 5 mph.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 79. Southwest wind around 5 mph.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. South wind around 5 mph.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 80. South wind 5 to 10 mph.

    High: 80 °F

    Partly Sunny

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, cloudy, with a low around 63. South southeast wind around 5 mph.
Wednesday
Areas of dense fog before 10am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 76. South wind around 5 mph.
Wednesday Night
Increasing clouds, with a low around 62. South wind around 5 mph.
Christmas Day
Cloudy through mid morning, then gradual clearing, with a high near 77. South wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 62. South wind around 5 mph.
Friday
Partly sunny, with a high near 79. Southwest wind around 5 mph.
Friday Night
Partly cloudy, with a low around 62. South wind around 5 mph.
Saturday
Partly sunny, with a high near 80. South wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 63. South southeast wind around 5 mph.
Sunday
Mostly cloudy, with a high near 75.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Mostly cloudy, with a high near 50.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Helotes TX
 29.59°N 98.69°W (Elev. 1211 ft)
Last Update:
3:44 am CST Dec 24, 2025
Forecast Valid:
4am CST Dec 24, 2025-6pm CST Dec 30, 2025
 
Forecast Discussion
 
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