Princeton, North Carolina Weather
Heat settles and the rain begins. Day 90 of spring. Read this microseason across nine climate regions →
Princeton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJun 17Overcast——91°69°—
- ThursdayJun 18Thunderstorm13%—97°75°+6°
- FridayJun 19Heavy Rain60%2.1″87°73°-10°
- SaturdayJun 20Overcast23%—91°69°+4°
- SundayJun 21Light Showers22%0.02″98°71°+7°
- MondayJun 22Overcast51%—89°70°-9°
- TuesdayJun 23Partly Cloudy37%—88°64°-1°
AQI 32 (Good), driven by Ozone. Ozone at AQI 58 now. With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 60 around 1 PM.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 10 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 58 now. With UV 7.8 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 60 around 1 PM.
- Present
- AQI 58
- UV peak
- 7.8 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 60
PM × Wind × Precip
PM2.5 at 5.8 µg/m³, PM10 at 7.0 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.83
- Wind
- light
- Recent rain
- 0h in last 6h
- Pattern
- background
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).
A summer fog for fair, a winter fog for rain.
- Moonrise
- 8:25 AM
- Moonset
- 10:33 PM
- In sign
- ♌︎ Leo
Heat settles and the rain begins
Princeton at a glance
- Today vs. normal: 4°F above the seasonal normal for this latitude
- Last frost: March 20 (climatological average for this latitude)
- Microseason: Jun 16–20
- Planting window: Stake and prune tomato suckers. Watch for squash vine borers.
16-Day Forecast — Princeton
- Wed91°69°8%
- Thu97°75°13%
- Fri87°73°60%
- Sat91°69°23%
- Sun98°71°22%
- Mon89°70°51%
- Tue88°64°37%
- Wed90°63°16%
- Thu84°71°16%
- Fri92°66°21%
- Sat95°68°22%
- Sun97°69°27%
- Mon87°71°35%
- Tue89°72°36%
- Wed83°72°42%
- Thu90°71°39%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of June 17, 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 has placed Princeton in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYNONENo severe risk
- TOMORROWMRGLMarginal Risk
- DAY 3TSTMGeneral Thunderstorms
Isolated severe storms possible. Limited threat for hail or damaging wind.
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
- 27569