Killeen, Texas Weather
Thunder quiets the land. Day 93 of summer. Read this microseason across nine climate regions →
Killeen weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 1:00 AM CDT · Open-Meteo
- TodaySep 21Overcast19%—91°76°—
- TuesdaySep 22Overcast10%0.02″92°76°+1°
- WednesdaySep 23Light Showers——95°74°+3°
- ThursdaySep 24Overcast——96°76°+1°
- FridaySep 25Partly Cloudy——96°75°0°
- SaturdaySep 26Partly Cloudy——97°76°+1°
- SundaySep 27Overcast——97°76°0°
Air quality now AQI 43 · Good
AQI 43 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 10.6 µg/m³ (AQI 54) with a 0.82 fine-to-coarse ratio and 5 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 during the projected peak around 11 AM.
What's driving it
PM × Wind × Precip
PM2.5 at 10.6 µg/m³ (AQI 54) with a 0.82 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.82
- Wind
- light
- 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
- 4:42 PM
- Moonset
- 2:19 AM
- In sign
- ♑︎ Capricorn
Thunder quiets the land
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Killeen at a glance
- Today vs. normal: Today averages 84°F (high 91°F, low 76°F), 8°F above the 76°F normal for Sep 21
- Last frost: March 14 (1991–2020 median, NOAA station 4 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant beans, squash, fall brassicas, carrots; harvest beans, summer squash, winter squash
15-Day Forecast — Killeen
- Mon91°76°19%
- Tue92°76°10%
- Wed95°74°6%
- Thu96°76°2%
- Fri96°75°0%
- Sat97°76°2%
- Sun97°76°6%
- Mon99°78°12%
- Tue98°74°28%
- Wed94°71°19%
- Thu93°71°8%
- Fri94°71°10%
- Sat95°71°10%
- Sun95°73°11%
- Mon94°75°10%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Killeen
Interactive wind and temperature map centered on Killeen — it loads in your browser. Open the full weather map.
Right now in the garden
Late season
As of September 21, the first frost (around November 17) 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 — Killeen
SPC includes Killeen 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 Killeen
Killeen sits in Bell County, where the year’s longest day runs 14h 10m of daylight and its shortest just 10h 8m — a swing of +4h 2m 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 165 miles to the ESE. The nearest town Killeen tracks is Temple, roughly 20 miles to the E.
Air quality in Killeen
Air quality in Killeen’s county has held roughly steady since 2020; its cleanest year on record was 2020 (median AQI 44). See the full air-quality history for Killeen.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| February | lettuce, peas, spinach, radishes | — |
| March | lettuce, peas, spinach, radishes | radishes |
| April | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| May | tomatoes, 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 Killeen, August runs warmest near 85°F and January coldest around 48°F, while May is the wettest month (4.7 inches) and August the driest (1.6 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 48° | 2.5″ | 4 |
| February | 52° | 2.2″ | 4 |
| March | 59° | 3.3″ | 5 |
| April | 65° | 2.1″ | 4 |
| May | 73° | 4.7″ | 5 |
| June | 81° | 3.2″ | 4 |
| July | 84° | 2.7″ | 3 |
| August | 85° | 1.6″ | 3 |
| September | 78° | 3.9″ | 4 |
| October | 68° | 3.4″ | 4 |
| November | 58° | 2.7″ | 4 |
| December | 49° | 2.4″ | 5 |
Regional context
Similar climates Harker Heights, TX, Fort Hood, TX, Nolanville, TX
Killeen swings from 48°F in January to 84°F in July (36°F) per NOAA NCEI 1991-2020 normals; precipitation in Killeen runs about 34.8 inches on roughly 49 measurable days.
Rainfall in Killeen splits evenly between the seasons: May tops out at 4.7 inches over 5.4 rainy days, and August logs 1.6 inches across 2.7 — neither half of Killeen's year dominates. That even rhythm groups Killeen with places like Harker Heights, TX, Fort Hood, TX and Nolanville, TX.
Once Killeen passes March 14, freezes fade and Killeen's beds take lettuce, chard, arugula, and mustard greens. Heat-demanding starts go out a fortnight on in Killeen, after the soil warms and cold snaps clear. Frost returns to Killeen near November 17, ending the tender-crop season. That date is a median: Killeen freezes sooner in half of years.
Similar climates: Harker Heights, TX, Fort Hood, TX, Nolanville, TX, Copperas Cove, TX, Kempner, TX.
Frequently asked
- When does it freeze in Killeen?
- Killeen's last spring frost lands near March 14, and in Killeen the first fall frost follows around November 17.
- What is the rainy season in Killeen?
- Rainfall in Killeen peaks in May near 4.7 inches, out of about 35 inches annually.
- What is the warmest month in Killeen?
- August is Killeen's warmest month, averaging about 85°F.
- What is the coldest month in Killeen?
- Killeen bottoms out in January, with a mean near 48°F.
- When can I start a vegetable garden in Killeen?
- Killeen's last frost (March 14) cues hardy greens; in Killeen, hold heat-lovers two weeks past.
- How many rainy days does Killeen get?
- Killeen records around 49 days of measurable precipitation annually.
- What hardiness zone is Killeen?
- Killeen's USDA zone comes from its January mean (48°F); enter the ZIP on the USDA lookup for the number.
- What is the 10-day forecast for Killeen?
- Killeen'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 Killeen?
- See this week's day-by-day rain chances for Killeen in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Killeen?
- Current conditions for Killeen and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Killeen forecast updated?
- The Killeen forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Killeen?
- Today's sunrise and sunset times for Killeen 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 Killeen?
- The next few days in Killeen's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Killeen sits at 31.1°N; its climate zone is humid subtropical (Köppen approximation).
ZIP codes in Killeen
- 76540
- 76541
- 76542
- 76543
- 76547
- 76549