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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date and time of issuance of these NWS text products since, in periods of tranquil weather, the latest products may be outdated and/or expired..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…
We/16Sep
Elevated to Dangerous Afternoon/Evening Heat Stress
Th/17Sep
Elevated to Dangerous Afternoon/Evening Heat Stress
Fr/18Sep..
Elevated Afternoon/Evening Heat Stress
Sa/19Sep..
Elevated Afternoon/Evening Heat Stress
Su/20Sep..
Elevated Afternoon/Evening Heat Stress
A Lightning Threat with any Thunderstorms Sunday Night
Mo/21Sep..
A Lightning Threat with any Thunderstorms
Tu/22Sep..
A Lightning Threat with any Thunderstorms
—
7-DAY RAINFALL FOR THE IH-35 CORRIDOR…
Based on NWS/Weather Prediction Center guidance and model forecasts,
0.15 inch or less rainfall amounts, on average, are forecast for our IH35 corridor
counties over the 7 day forecast period ending on Tuesday.
—
AUSTIN / IH35 CORRIDOR
MY SEVEN DAY WEATHER THOUGHTS
AND MY 7 DAY FORECAST CONFIDENCE …
A dry and stable late summer weather pattern continues. As we’ve seen the last
few days, a few isolated rain showers and storms could develop with daytime
heat in the afternoon hours between the Austin metro area/IH35 corridor and the
coast especially on Thursday but my confidence is not high enough in the model
signals that we’re seeing to mention in this in my IH35 corridor forecast.
There continues to be continuity and stronger signals in model and manual
guidance suggesting a weakening surface cold front approaching our area by
afternoon on Monday with it dying out just to our north. Given this, we’ll see
better rain and storm chances for late Sunday night into Tuesday. At this point,
this does not appear to be a drought buster.. it’s still hard to get into details
this far in advance but I’ll watch it over the coming days.
Meanwhile, with elevated to dangerous afternoon and evening heat stress over
the coming days, a friendly reminder to please stay hydrated and take it easy out
there in the afternoon into evening hours.
In addition, we continue to see drought conditions worsen overall over the area and
vegetation continues to dry out, wildfire danger continues to increase over
our area. So far, winds have been relatively light so the danger has been
limited. As we wrap up summer and head into the fall months, this danger will
likely continue to get worse assuming no precipitation. Another thing we need to
monitor are any early fall season cold fronts and any stronger northerly winds
that might occur with any frontal passage. Burns bans continue for our IH35
counties so I strongly discourage any outdoor burning.
LOCAL FORECAST CONFIDENCE FOR THIS SEVEN DAY FORECAST PERIOD …
– A very high forecast confidence through Sunday night
– A medium forecast confidence Monday into Tuesday regarding the forecast
cold front approaching the area and any associated rain and storm chances as
well as approximate rainfall amounts.
—
Troy’s Weather Forecast for Austin, South Central Texas and the IH35 Corridor
WEDNESDAY (16Sep)….
Mostly sunny during the day.. mostly clear at night.
Afternoon high around 101 (with max afternoon HI 108F/max afternoon WBGT 89F).
Overnight low in the upper 70s.
Southeasterly wind 5 to 10 mph becoming light east southeasterly at night.
THURSDAY (17Sep)….
Some morning low clouds otherwise mostly sunny during the day.. mostly clear at night.
Afternoon high around 100 (with max afternoon HI 107F/max afternoon WBGT 88F).
Overnight low in the mid to upper 70s.
East southeasterly wind 4 to 8 mph.
FRIDAY (18Sep)….
Mostly sunny during the day.. mostly clear at night.
Afternoon high around 100 (with max afternoon HI 104F/max afternoon WBGT 87F).
Overnight low in the upper 70s.
East southeasterly wind 5 to 10 mph becoming light southeasterly at night.
SATURDAY (19Sep)….
Mostly sunny during the day.. mostly clear at night.
Afternoon high around 100 (with max afternoon HI 104F/max afternoon WBGT 87F).
Overnight low in the upper 70s.
South southeasterly wind 5 to 10 mph becoming south southeasterly 4 to 8 mph at night.
SUNDAY (20Sep)….
Mostly sunny during the day.. then becoming partly cloudy at night.
Widely scattered rain showers and thunderstorms with a lightning threat after 8pm.
Rainfall, where it occurs given a 20% chance of rain, will average 0.05 inch or less.
Afternoon high around 100 (with max afternoon HI 107F/max afternoon WBGT 88F).
Overnight low in the mid to upper 70s.
Southerly wind 5 to 12 mph becoming southeasterly 4 to 8 mph at night.
MONDAY (21Sep)….
Partly cloudy as weak cold front approaches by midday and afternoon.
Scattered rain showers and thunderstorms with a lightning threat.
Rainfall, where it occurs given a 30% chance of rain, will average 0.10 inch or less.
Afternoon high in the mid 90s (with max afternoon HI 104F/max afternoon WBGT 86F).
Overnight low in the mid 70s.
Southerly wind 8 to 15 mph becoming more southwesterly for the afternoon and night time hours.
TUESDAY (22Sep)….
Partly cloudy.
Scattered rain showers and thunderstorms with a lightning threat.
Rainfall, where it occurs given a 30% chance of rain, will average 0.10 inch or less.
Afternoon high in the mid 90s (with max afternoon HI 103F/max afternoon WBGT 86F).
Overnight low in the mid 70s.
Light wind.
NATIONAL WEATHER SERVICE / CLIMATE PREDICTION CENTER (CPC)
8 TO 14 DAY OUTLOOK
Valid Wednesday / 23 September 2026 through Tuesday / 29 September 2026
Temperature… Better Chances of Above Normal
Precipitation… Better Chances of Slightly Above Normal
NATIONAL WEATHER SERVICE / CLIMATE PREDICTION CENTER (CPC)
3 TO 4 WEEK OUTLOOK (Updated on Friday / 11 September 2026)
Valid Saturday / 26 September 2026 through Friday / 09 October 2026
Temperatures… Better Chances of Above Normal
Precipitation.. Better Chances of Slightly Above Normal