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.. go to http://mesonet.agron.iastate.edu/cgi-bin/afos/retrieve.py?pil=warewx&limit=20&fmt=html for a chronological text listing (most current
at the top but note the page doesn’t auto-refresh, you must refresh page manually)
of all NWS Austin-San Antonio watches, advisories and warnings.. Always check
the date and time of issuance of these NWS text products since, in periods of tranquil weather, the latest products may be outdated and/or expired..
—-
AUSTIN / IH35 CORRIDOR
7-DAY FORECAST WEATHER HAZARDS…
Th/27Aug..
… Heat Advisory Until 7pm …
Lightning and Gusty Wind Threat with Any Thunderstorms
Elevated to Dangerous Afternoon/Evening Heat Stress
Fr/28Aug..
Elevated to Dangerous Afternoon/Evening Heat Stress
Sa/29Aug..
Elevated to Dangerous Afternoon/Evening Heat Stress
Su/30Aug..
Elevated to Dangerous Afternoon/Evening Heat Stress
Mo/31Aug
Elevated to Dangerous Afternoon/Evening Heat Stress
Tu/01Sep
Elevated to Dangerous Afternoon/Evening Heat Stress
We/02Sep
Elevated to Dangerous Afternoon/Evening Heat Stress
—
7-DAY RAINFALL FOR THE IH-35 CORRIDOR…
Based on NWS/Weather Prediction Center guidance and model forecasts,
0.20 inch or less of rainfall is forecast for our IH35 corridor counties over
the 7 day forecast period ending on Wednesday.
—
AUSTIN / IH35 CORRIDOR
MY SEVEN DAY WEATHER THOUGHTS
AND MY 7 DAY FORECAST CONFIDENCE …
I’ve increased my forecast coverage of precipitation for today into tonight with
scattered rain shower and thunderstorm activity is expected as a weak upper
air low pressure disturbance and associated weak surface cold front moves
into the area from the north. As I’ve mentioned the last few days, overall the
atmosphere will remain relatively dry with some of the precipitation evaporating
before it ever reaches the ground. Even so, we could see some measurable rainfall
amounts; in addition, lightning and gusty surface winds could occur around any
thunderstorms into this evening.
Beyond tonight, upper level high pressure, acting like a “lid” on the atmosphere,
will continue through the balance of the seven day forecast period with the surface
front overhead weakening and returning northward as a warm front. This means a
stable pattern meaning a dry late summer weather pattern for our area.
We’ll continue with elevated to dangerous afternoon and evening heat stress
over the next seven days. A NWS Heat Advisory continues until 7pm tonight.
Over the coming days, please stay hydrated and take it easy out there in the
afternoon into evening hours.
In addition, we continue to see drought conditions worsen over the area and
vegetation continues to dry out, wildfire danger continues to slowly increase over
our area. So far, winds have been relatively light so the danger has been limited.
As we wrap up summer in September and head into the fall months, this danger
will likely continue to get worse assuming no precipitation (which I’m not really
seeing in longer range climate outlooks). Another thing we need to monitor are
any early fall season cold fronts and any stronger northerly winds that might
occur with their passage. As I mention, I do not see either of these things happening
at this point, but I will continue to monitor things closely. Burns bans have been
posted for our IH35 counties so I would strongly discourage any outdoor burning.
LOCAL FORECAST CONFIDENCE FOR THIS SEVEN DAY FORECAST PERIOD …
– A very high forecast confidence through next Sunday.
—
Troy’s Weather Forecast for Austin, South Central Texas and the IH35 Corridor
… Heat Advisory in Effect until 7pm Tonight …
THURSDAY (27Aug)….
Mostly sunny early then turning partly cloudy.
Scattered afternoon rain showers and thunderstorms with an associated lightning/gusty wind threat.
Rainfall, where it occurs given a 30% chance of rain, will average 0.10 inch or less.
Afternoon high around 103.
Maximum afternoon maximum heat stress (HI) index 107 F.
Maximum afternoon wet bulb globe temperature (WBGT) 88 F.
South southwesterly wind 4 to 8 mph becoming strong and gusty around any thunderstorms.
THURSDAY NIGHT….
Partly cloudy as a weak cold front washes out overhead.
Scattered rain showers and thunderstorms with an associated lightning/gusty wind threat before 10pm.
Rainfall, where it occurs given a 30% chance of rain, will average less than 0.10 inch.
Overnight low in the upper 70s to around 80.
South southeasterly wind 4 to 8 mph becoming strong and gusty around any thunderstorms
before becoming light by late evening.
FRIDAY (28Aug)….
Mostly sunny.
Afternoon high around 102.
Maximum afternoon maximum heat stress (HI) index 108 F.
Maximum afternoon wet bulb globe temperature (WBGT) 88 F.
Light winds early becoming southeasterly 4 to 8 mph by afternoon.
FRIDAY NIGHT….
Mostly clear.
Overnight low in the upper 70s to around 80.
Southeasterly wind 4 to 8 mph.
SATURDAY (29Aug)….
Mostly sunny.
Afternoon high around 101.
Maximum afternoon maximum heat stress (HI) index 108 F.
Maximum afternoon wet bulb globe temperature (WBGT) 88 F.
Southerly wind 5 to 10 mph.
SATURDAY NIGHT….
Mostly clear.
Overnight low in the upper 70s.
South southeasterly wind 4 to 8 mph.
SUNDAY (30Aug)….
Mostly sunny.
Afternoon high around 100.
Maximum afternoon maximum heat stress (HI) index 106 F.
Maximum afternoon wet bulb globe temperature (WBGT) 87 F.
South southeasterly wind 5 to 10 mph.
SUNDAY NIGHT….
Mostly clear.
Overnight low in the upper 70s.
South southeasterly wind 5 to 10 mph.
MONDAY (31Aug)….
Mostly sunny.
Afternoon high around 101.
Maximum afternoon maximum heat stress (HI) index 106 F.
Maximum afternoon wet bulb globe temperature (WBGT) 87 F.
South southeasterly wind 5 to 12 mph.
MONDAY NIGHT….
Mostly clear.
Overnight low in the upper 70s.
Southeasterly wind 5 to 10 mph.
TUESDAY (01Sep)….
Mostly sunny.
Afternoon high around 101.
Maximum afternoon maximum heat stress (HI) index 107 F.
Maximum afternoon wet bulb globe temperature (WBGT) 88 F.
South southeasterly wind 5 to 12 mph.
TUESDAY NIGHT….
Mostly clear.
Overnight low in the upper 70s.
Southeasterly wind 4 to 8 mph.
WEDNESDAY (02Sep)….
Mostly sunny.
Afternoon high around 101.
Maximum afternoon maximum heat stress (HI) index 107 F.
Maximum afternoon wet bulb globe temperature (WBGT) 88 F.
South southeasterly wind 5 to 12 mph.
NATIONAL WEATHER SERVICE / CLIMATE PREDICTION CENTER (CPC)
8 TO 14 DAY OUTLOOK
Valid Thursday / 03 September 2026 through Wednesday / 09 September 2026
Temperature… Better Chances of Above Normal
Precipitation… Better Chances of Near Normal
NATIONAL WEATHER SERVICE / CLIMATE PREDICTION CENTER (CPC)
3 TO 4 WEEK OUTLOOK (Updated on Friday / 14 August 2026)
Valid Saturday / 05 September 2026 through Friday / 18 September 2026
Temperatures… Better Chances of Above Normal
Precipitation.. Better Chances of Near Normal