Princeton, Texas Weather
Thunderheads boil and break at dusk. Day 16 of summer. Read this microseason across nine climate regions →
Princeton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast34%—89°71°—
- MondayJul 6Overcast13%—97°72°+8°
- TuesdayJul 7Light Drizzle12%—98°73°+1°
- WednesdayJul 8Light Drizzle——102°74°+4°
- ThursdayJul 9Overcast——102°80°0°
- FridayJul 10Clear——101°79°-1°
- SaturdayJul 11Overcast——96°80°-5°
AQI 57 (Moderate), driven by PM2.5. AQI up 18 in the last 6 hours — air quality is degrading. PM2.5 at 9.2 µg/m³ (AQI 51) with a 0.80 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm 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 50 now. With UV 0.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 12.
- Present
- AQI 50
- UV peak
- 0.1 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 12
PM × Wind × Precip
PM2.5 at 9.2 µg/m³ (AQI 51) with a 0.80 fine-to-coarse ratio and 5 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.80
- 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).
When the stars begin to huddle, the earth will soon become a puddle.
- Moonrise
- 12:07 AM
- Moonset
- 12:44 PM
- In sign
- ♓︎ Pisces
Thunderheads boil and break at dusk
Princeton at a glance
- Today vs. normal: 3°F above the seasonal normal for this latitude
- Last frost: March 6 (climatological average for this latitude)
- Microseason: Jul 6–10
- Planting window: Sow fall broccoli and cabbage indoors for transplant in 4 weeks.
ZIP code: 75407
16-Day Forecast — Princeton
- Sun89°71°34%
- Mon97°73°13%
- Tue98°73°12%
- Wed102°74°3%
- Thu102°80°1%
- Fri101°79°3%
- Sat96°80°9%
- Sun95°77°11%
- Mon99°77°9%
- Tue104°82°5%
- Wed104°80°2%
- Thu106°82°12%
- Fri109°81°16%
- Sat102°82°19%
- Sun108°77°13%
- Mon109°76°11%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 6, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — Princeton
SPC includes Princeton 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. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in Princeton
- 75407