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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date and time of issuance of these NWS text products since, in periods of tranquil weather, the latest products may be outdated and/or expired..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…
Sa/26Sep..
Slightly Elevated Afternoon/Evening Heat Stress
Su/27Sep..
Slightly Elevated Afternoon/Evening Heat Stress
Mo/28Sep..
Slightly Elevated Afternoon/Evening Heat Stress
Tu/29Sep..
Slightly Elevated Afternoon/Evening Heat Stress
Lightning Threat with Any Thunderstorms Tuesday Night
We/30Sep..
Lightning Threat with Any Thunderstorms
Th/01Oct..
Lightning Threat with Any Thunderstorms
Fr/02Oct..
Lightning Threat with Any Thunderstorms
—
7-DAY RAINFALL FOR THE IH-35 CORRIDOR…
Based on NWS/Weather Prediction Center guidance and model forecasts,
2.50 inch rainfall amounts, on average, are forecast for our IH35 corridor
counties over the 7 day forecast period ending on Friday.
—
AUSTIN / IH35 CORRIDOR
MY SEVEN DAY WEATHER THOUGHTS
AND MY 7 DAY FORECAST CONFIDENCE …
A dry and stable late summer weather pattern continues over the area
and will continue through the weekend and into the first part of next week as
somewhat drier air moves into our area for particularly Saturday.
By late Monday into Tuesday, an approaching upper level low pressure disturbance
will move from the west coast into the southern Rockies. This will promote
increasing moisture and low level wind flow off of the Gulf. By Tuesday morning,
this system will begin to cross Texas with an associated surface cold front extending
from a developing surface low pressure area over the Kansas and Nebraska
border southwestward into west Texas and southern New Mexico. Model
and manual forecast data now suggests that the front will move only move slow
through our area by Friday about daybreak as the first true fall cold front of
the season). In a little lower confidence forecast, rain and thunderstorm chances
appear to increase by Tuesday night into Wednesday and continuing late week
through the weekend as a milder air mass takes hold following the cold front,
with temperatures falling a few degrees, by Friday into the weekend as this weather pattern change takes hold. Given the increased forecast rainfall amounts, some
periods of heavier rain are likely mid into late next week into the following weekend.
Very preliminary guidance suggests a second cold front may pass by Monday of the following week although that is beyond this seven day forecast period.
Until all of that occurs, with slightly elevated 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 through early next week.
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 make our way 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 especially if no precipitation occurs as the fronts move
through. 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 Tuesday
– A medium forecast confidence for Tuesday night through Friday
—
Troy’s Weather Forecast for Austin, South Central Texas and the IH35 Corridor
SATURDAY (26Sep)….
Mostly sunny during the day.. becoming partly cloudy at night.
Afternoon high in the upper 90s (with max afternoon HI 102F/max afternoon WBGT 87F).
Overnight low in the mid to upper 70s.
Light easterly wind early then southerly 4 to 8 mph becoming light southeasterly at night.
SUNDAY (27Sep)….
Mostly sunny during the day.. becoming partly cloudy at night.
Afternoon high in the upper 90s to around 100 (with max afternoon HI 104F/max afternoon WBGT 87F).
Overnight low in the mid to upper 70s.
South southeasterly wind 4 to 8 mph.
MONDAY (28Sep)….
Mostly sunny during theday then partly cloudy at night.
Afternoon high in the upper 90s to around1 00 (with max afternoon HI 103F/max afternoon WBGT 87F).
Overnight low in the mid to upper 70s.
South southeasterly wind 4 to 8 mph becoming light southeasterly at night.
TUESDAY (29Sep)….
Partly cloudy during the day then mostly cloudy at night.
Scattered rain showers and thunderstorms with an associated lightning threat after 6pm.
Nighttime rainfall, where it occurs given a 40% chance of rain at any given location, will average 0.20 inch.
Afternoon high in the upper 90s (with max afternoon HI 102F/max afternoon WBGT 86F).
Overnight low in the mid 70s.
South southeasterly wind 5 to 12 mph then southerly 5 to 10 mph at night.
WEDNESDAY (30Sep)….
Partly to mostly cloudy.
Scattered rain showers and thunderstorms with an associated lightning threat.
Daytime rainfall, where it occurs given a 40% chance of rain at any given location, will average 0.10 inch.
Nighttime rainfall, where it occurs given a 50% chance of rain at any given location, will average 0.20 inch.
Afternoon high in the low to mid 90s.
Overnight low in the low to mid 70s.
Southerly wind 5 to 12 mph.
THURSDAY (01Oct)….
Mostly cloudy.
Scattered rain showers and thunderstorms with an associated lightning threat.
Daytime rainfall, where it occurs given a 50% chance of rain at any given location, will average 0.25 inch.
Nighttime rainfall, where it occurs given a 50% chance of rain at any given location, will average 0.25 inch.
Afternoon high around 90.
Overnight low around 70.
Southerly wind 5 to 12 mph.
FRIDAY (02Oct)….
Mostly cloudy as a cold front passes by mid morning.
Scattered to numerous rain showers and thunderstorms with an associated lightning threat.
Daytime rainfall, where it occurs given a 60% chance of rain at any given location, will average 0.50 to 1.00 inch.
Nighttime rainfall, where it occurs given a 50% chance of rain at any given location, will average 0.25 inch.
Afternoon high in the upper 80s.
Overnight low in the upper 60s.
Southerly wind shifting north northeasterly 5 to 12 mph.
NATIONAL WEATHER SERVICE / CLIMATE PREDICTION CENTER (CPC)
8 TO 14 DAY OUTLOOK
Valid Saturday / 03 October 2026 through Friday / 09 October 2026
Temperature… Better Chances of Near Normal
Precipitation… Better Chances of Above Normal
NATIONAL WEATHER SERVICE / CLIMATE PREDICTION CENTER (CPC)
3 TO 4 WEEK OUTLOOK (Updated on Friday / 25 September 2026)
Valid Saturday / 10 October 2026 through Friday / 23 October 2026
Temperatures… Better Chances of Slightly Above Normal
Precipitation.. Better Chances of Near Normal