textproduct: Austin/San Antonio

KEY MESSAGES

- Patchy to areas of dense fog have medium to high probability to form overnight through Monday morning and again Tuesday morning.

- Well above high temperatures are in store for today through Thursday.

- There is a 20 percent chance for rain Wednesday evening into Thursday morning.

- Cold front moves Friday with cooler temperatures and brings fire weather concerns into the weekend

SHORT TERM

(Today through Tuesday) Issued at 1210 AM CST Mon Jan 5 2026

With the return of southerly flow to the local area, fog and low cloud development is in store for the overnight period into Monday morning. Some models bring visibility down to a mile or less and others don't. Therefore, once we start getting observations and low visibility values that meet Dense Fog Advisory criteria, then we issue it. Otherwise, fog and low clouds lift late morning/early afternoon for partly cloudy skies. Highs are forecast to range from the lower to mid 70s most locations to upper 70s across the Coastal Plains. May be breezy across the Hill Country mid afternoon, otherwise, wind speeds of 10 mph or less are forecast for the local area.

The night time comes and the pattern repeats with fog and low clouds developing overnight and breaking by midday. In the meantime, a surface trough/dry-line pushes from the southern Edwards Plateau into the I-35 corridor to bring temperatures into the lower and mid 80s. It is going to be very warm for this time of the year and some daily high temperature records could be broken. Clouds returns at night and lows get down to the 50s areawide.

LONG TERM

(Tuesday night through Sunday) Issued at 1210 AM CST Mon Jan 5 2026

Another warm day is forecast for Wednesday with highs in the lower 80s for most areas. Later in the evening into the overnight hours, a piece of energy from an upper level disturbance moving across northern Mexico and Arizona may bring enough instability to portions of the Rio Grande and southern Edwards Plateau to produce some showers there. Otherwise, models are trending drier for most of Thursday into early Friday.

A cold front is forecast to push across South Central Texas during the day on Friday to cool temperatures down and provides a slight chance for showers mainly for areas along and east of Highway 77. Friday's highs are forecast to range from the mid to upper 60s across the Hill Country to upper 70s across the Coastal Plains. Overnight lows to drop to the mid to upper 30s for the Hill Country to mid 40s elsewhere.

Next weekend looks dry and cooler with temperatures closer to climate normals with highs in the 60s and lows in the lower to upper 30s with a new surge of a cooler airmass pushing into the local area.

CLIMATE

Issued at 1205 PM CST Sun Jan 4 2026

Record High Temperatures

Tue/6th Wed/7th

AUS 84/1989 80/1978 ATT 84/1989* 80/2008* SAT 84/1989 86/1923 DRT 82/2023* 83/1923

*also earlier years

PRELIMINARY POINT TEMPS/POPS

Austin Camp Mabry 74 61 84 57 / 0 0 0 0 Austin Bergstrom Intl Airport 76 60 84 56 / 0 0 0 0 New Braunfels Muni Airport 76 59 84 56 / 0 0 0 0 Burnet Muni Airport 73 56 81 53 / 0 0 0 0 Del Rio Intl Airport 74 55 83 54 / 0 0 0 0 Georgetown Muni Airport 74 59 84 55 / 0 0 0 0 Hondo Muni Airport 74 56 84 55 / 0 0 0 0 San Marcos Muni Airport 76 59 85 56 / 0 0 0 0 La Grange - Fayette Regional 78 62 83 59 / 0 0 0 0 San Antonio Intl Airport 75 61 83 59 / 0 0 0 0 Stinson Muni Airport 76 61 83 60 / 0 0 0 0

EWX WATCHES/WARNINGS/ADVISORIES

None.