Hartsville, Tennessee Weather
Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →
Hartsville weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 4Foggy13%—92°69°—
- SundayJul 5Light Showers33%0.09″93°74°+1°
- MondayJul 6T-storm w/ Hail46%—83°71°-10°
- TuesdayJul 7T-storm w/ Hail34%—86°70°+3°
- WednesdayJul 8Overcast32%—89°68°+3°
- ThursdayJul 9Overcast37%—90°70°+1°
- FridayJul 10Thunderstorm58%—86°72°-4°
AQI 36 (Good), driven by Ozone. AQI up 6 over the last 6 hours (gradual rise). Ozone at AQI 88 now. With UV 8.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 100 around 1 PM.
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 88 now. With UV 8.5 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 100 around 1 PM.
- Present
- AQI 88
- UV peak
- 8.5 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 100
PM × Wind × Precip
PM2.5 at 9.5 µg/m³, PM10 at 10.1 µg/m³ — typical background levels with no transport signature.
- PM2.5/PM10
- 0.94
- 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).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 10:34 PM
- Moonset
- 9:54 AM
- In sign
- ♓︎ Pisces
Cicadas claim the scorching afternoon
Hartsville at a glance
- Today vs. normal: 13°F above the seasonal normal for this latitude
- Last frost: March 25 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP code: 37074
16-Day Forecast — Hartsville
- Sat92°69°13%
- Sun93°74°33%
- Mon83°71°46%
- Tue86°70°34%
- Wed89°68°32%
- Thu90°70°37%
- Fri86°72°58%
- Sat89°71°47%
- Sun81°64°32%
- Mon75°61°11%
- Tue78°60°12%
- Wed84°63°16%
- Thu87°64°20%
- Fri86°72°23%
- Sat82°72°20%
- Sun84°71°48%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 4, 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 — Hartsville
SPC includes Hartsville 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 Hartsville
- 37022
- 37074
- 37057
- 37031