Hornsby Bend, Texas Weather
Thunder quiets the land. Day 93 of summer. Read this microseason across nine climate regions →
Hornsby Bend weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 9:21 AM CDT · Open-Meteo
- TodaySep 21Light Drizzle later14%0.01″97°75°—
- TuesdaySep 22Clear15%0.02″93°78°-4°
- WednesdaySep 23Light Drizzle15%—99°75°+6°
- ThursdaySep 24Overcast——100°82°+1°
- FridaySep 25Partly Cloudy——100°81°0°
- SaturdaySep 26Overcast——99°79°-1°
- SundaySep 27Overcast——101°78°+2°
Air quality now AQI 49 · Good
AQI 49 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 9.8 µg/m³ (AQI 52) with a 0.75 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in stagnant air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
Ozone × UV × Sky
Ozone at AQI 30 now. With UV 2.6 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 10.
- Present
- AQI 30
- UV peak
- 2.6 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 10
PM × Wind × Precip
PM2.5 at 9.8 µg/m³ (AQI 52) with a 0.75 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.75
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:39 PM
- Moonset
- 2:20 AM
- In sign
- ♑︎ Capricorn
Thunder quiets the land
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Hornsby Bend at a glance
- Today vs. normal: Today averages 86°F (high 97°F, low 75°F), 9°F above the 77°F normal for Sep 21
- Last frost: March 12 (1991–2020 median, NOAA station 11 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant beans, squash, fall brassicas, carrots; harvest beans, summer squash, winter squash
16-Day Forecast — Hornsby Bend
- Mon97°75°14%
- Tue93°78°15%
- Wed99°75°15%
- Thu100°82°5%
- Fri100°81°1%
- Sat99°79°3%
- Sun101°78°6%
- Mon99°78°19%
- Tue84°75°32%
- Wed90°74°26%
- Thu92°76°13%
- Fri83°74°22%
- Sat86°72°19%
- Sun90°72°15%
- Mon81°64°12%
- Tue79°61°16%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Late season
As of September 21, the first frost (around November 16) is about 8 weeks away. Frost-tender plants keep producing until then. This city's planting calendar for September: plant beans, squash, fall brassicas, and carrots; harvest beans, summer squash, and winter squash.
SPC Convective Outlook
Storm Prediction Center — Hornsby Bend
SPC includes Hornsby Bend in the general thunderstorm area today — no severe risk, but storms are possible.
- TODAYTSTMGeneral Thunderstorms
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook.
Sun & seasons in Hornsby Bend
Hornsby Bend sits in Travis County, where the year’s longest day runs 14h 6m of daylight and its shortest just 10h 12m — a swing of +3h 54m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Houston, the state’s largest city, lies about 135 miles to the ESE. The nearest town Hornsby Bend tracks is Austin, roughly 11 miles to the WNW.
Air quality in Hornsby Bend
Air quality in Hornsby Bend’s county has trended dirtier since 2020; its cleanest year on record was 2020 (median AQI 51).
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| February | lettuce, peas, spinach, radishes | — |
| March | lettuce, spinach, radishes | spinach, radishes |
| April | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| May | squash | lettuce, peas, spinach, beans, summer squash |
| June | squash | tomatoes, peppers, beans, summer squash, garlic |
| July | tomatoes, peppers, beans, squash | tomatoes, peppers, summer squash, winter squash |
| August | tomatoes, peppers, beans, squash, fall brassicas, carrots | summer squash, winter squash |
| September | beans, squash, fall brassicas, carrots | beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash |
| November | — | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| December | — | fall brassicas, carrots |
A year in weather
In Hornsby Bend, August runs warmest near 85°F and January coldest around 50°F, while May is the wettest month (5.0 inches) and February the driest (1.9 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 50° | 2.8″ | 8 |
| February | 54° | 1.9″ | 8 |
| March | 61° | 2.9″ | 9 |
| April | 68° | 2.4″ | 7 |
| May | 76° | 5.0″ | 8 |
| June | 82° | 3.4″ | 7 |
| July | 85° | 2.2″ | 5 |
| August | 85° | 2.5″ | 5 |
| September | 79° | 3.0″ | 7 |
| October | 70° | 4.3″ | 7 |
| November | 59° | 2.7″ | 7 |
| December | 52° | 2.6″ | 7 |
Regional context
Similar climates Garfield, TX, Webberville, TX, Manor, TX
In Hornsby Bend, NOAA NCEI 1991-2020 normals put January near 50°F and July near 85°F — a 34°F seasonal arc — with about 35.6 inches of precipitation over 82 rainy or snowy days.
Rainfall in Hornsby Bend splits evenly between the seasons: May tops out at 5.0 inches over 7.8 rainy days, and February logs 1.9 inches across 7.6 — neither half of Hornsby Bend's year dominates. That even rhythm groups Hornsby Bend with places like Garfield, TX, Webberville, TX and Manor, TX.
Around March 12, Hornsby Bend sheds its freezing nights — lettuce, chard, arugula, and mustard greens go into Hornsby Bend's beds. Hornsby Bend's heat-lovers — tomatoes, peppers, squash — hold off until Hornsby Bend's frost risk clears, 10-14 days on. Frost returns to Hornsby Bend near November 16, ending the tender-crop season. That date is a median: Hornsby Bend freezes sooner in half of years.
Similar climates: Garfield, TX, Webberville, TX, Manor, TX, Wyldwood, TX, Austin, TX.
Frequently asked
- When does it freeze in Hornsby Bend?
- In Hornsby Bend, expect the last spring frost near March 12; Hornsby Bend's first autumn frost comes around November 16.
- What is the rainy season in Hornsby Bend?
- Rainfall in Hornsby Bend peaks in May near 5.0 inches, out of about 36 inches annually.
- What is the warmest month in Hornsby Bend?
- The warmest stretch in Hornsby Bend comes in August, around 85°F on average.
- What is the coldest month in Hornsby Bend?
- On average January is the chilliest month in Hornsby Bend, about 50°F.
- When can I start a vegetable garden in Hornsby Bend?
- Time tomatoes in Hornsby Bend for two weeks after March 12; peas and greens start at Hornsby Bend's frost line.
- How many rainy days does Hornsby Bend get?
- Hornsby Bend averages about 82 days with measurable rain or snow each year.
- What hardiness zone is Hornsby Bend?
- Hornsby Bend sits in the USDA zone set by January lows near 50°F; the USDA ZIP tool gives the band.
- What is the 10-day forecast for Hornsby Bend?
- Hornsby Bend's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Hornsby Bend?
- See this week's day-by-day rain chances for Hornsby Bend in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Hornsby Bend?
- Current conditions for Hornsby Bend and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Hornsby Bend forecast updated?
- The Hornsby Bend forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Hornsby Bend?
- Today's sunrise and sunset times for Hornsby Bend are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Hornsby Bend?
- The next few days in Hornsby Bend's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Hornsby Bend sits at 30.2°N; its climate zone is humid subtropical (Köppen approximation).
ZIP codes in Hornsby Bend
- 78724
- 78725