St. Helena, North Carolina Weather
Thunderheads boil and break at dusk. Day 16 of summer. Read this microseason across nine climate regions →
St. Helena weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 6Overcast19%—99°76°—
- TuesdayJul 7Overcast63%0.02″95°77°-4°
- WednesdayJul 8Overcast40%—102°78°+7°
- ThursdayJul 9Drizzle30%—103°74°+1°
- FridayJul 10Light Showers10%—101°72°-2°
- SaturdayJul 11Light Drizzle35%—97°75°-4°
- SundayJul 12Overcast48%—101°74°+4°
AQI 46 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±4 points). PM2.5 at 11.3 µg/m³ (AQI 55) with a 0.86 fine-to-coarse ratio and 3 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 44 now. With UV 3.3 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 20.
- Present
- AQI 44
- UV peak
- 3.3 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 20
PM × Wind × Precip
PM2.5 at 11.3 µg/m³ (AQI 55) with a 0.86 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.86
- 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).
When the stars begin to huddle, the earth will soon become a puddle.
- Moonrise
- 11:52 PM
- Moonset
- 12:27 PM
- In sign
- ♓︎ Pisces
Thunderheads boil and break at dusk
St. Helena at a glance
- Today vs. normal: 76°F — typical for the season
- Last frost: March 14 (climatological average for this latitude)
- Microseason: Jul 6–10
- Planting window: Sow fall broccoli and cabbage indoors for transplant in 4 weeks.
15-Day Forecast — St. Helena
- Mon99°76°19%
- Tue95°77°63%
- Wed102°78°40%
- Thu103°74°30%
- Fri101°72°10%
- Sat97°75°35%
- Sun101°74°48%
- Mon100°76°40%
- Tue105°74°17%
- Wed104°76°19%
- Thu107°78°25%
- Fri97°72°35%
- Sat77°69°47%
- Sun83°66°52%
- Mon81°66°45%
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 — St. Helena
SPC has placed St. Helena in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal Risk
- TOMORROWTSTMGeneral Thunderstorms
- 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 St. Helena
- 28425