Greenville, South Carolina Weather
Thunder quiets the land. Day 93 of summer. Read this microseason across nine climate regions →
Greenville weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 1:30 AM EDT · Open-Meteo
- TodaySep 21Clear14%—90°69°—
- TuesdaySep 22Clear76%0.03″84°70°-6°
- WednesdaySep 23Light Drizzle72%—70°62°-14°
- ThursdaySep 24Overcast33%—67°59°-3°
- FridaySep 25Overcast——78°56°+11°
- SaturdaySep 26Overcast——84°57°+6°
- SundaySep 27Overcast——84°60°0°
Air quality now AQI 56 · Moderate
AQI 56 (Moderate), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 20.5 µg/m³ (AQI 72) with a 0.97 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
PM × Wind × Precip
PM2.5 at 20.5 µg/m³ (AQI 72) with a 0.97 fine-to-coarse ratio and 3 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.97
- 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).
September dries up ditches or breaks down bridges.
- Moonrise
- 4:48 PM
- Moonset
- 2:05 AM
- In sign
- ♑︎ Capricorn
Thunder quiets the land
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Greenville at a glance
- Today vs. normal: Today averages 80°F (high 90°F, low 69°F), 9°F above the 71°F normal for Sep 21
- Last frost: March 28 (1991–2020 median, NOAA station 1 km away)
- Microseason: Sep 21–25
- Planting calendar: September — harvest tomatoes, peppers, beans, summer squash, winter squash
15-Day Forecast — Greenville
- Mon90°68°14%
- Tue84°70°76%
- Wed70°62°72%
- Thu67°59°33%
- Fri78°56°5%
- Sat84°57°2%
- Sun84°60°3%
- Mon83°58°3%
- Tue84°59°9%
- Wed81°64°24%
- Thu87°62°20%
- Fri80°59°11%
- Sat83°61°19%
- Sun68°63°29%
- Mon75°63°26%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Greenville
Interactive wind and temperature map centered on Greenville — 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 7) is about 7 weeks away. Frost-tender plants keep producing until then. This city's planting calendar for September: harvest tomatoes, peppers, beans, summer squash, and winter squash.
SPC Convective Outlook
Storm Prediction Center — Greenville
SPC has placed Greenville in the Marginal Risk category for severe thunderstorms tomorrow.
- TODAYTSTMGeneral Thunderstorms
- 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.
Sun & seasons in Greenville
Greenville sits in Greenville County, where the year’s longest day runs 14h 30m of daylight and its shortest just 9h 49m — a swing of +4h 41m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Charleston, the state’s largest city, lies about 196 miles to the SE. The nearest town Greenville tracks is Mauldin, roughly 5 miles to the SE.
Air quality in Greenville
Air quality in Greenville’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 Greenville.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| March | lettuce, peas, spinach, radishes | radishes |
| April | lettuce, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, spinach, radishes |
| May | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| June | beans, squash | lettuce, peas, spinach, beans, summer squash, garlic |
| July | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash, garlic |
| August | beans, squash, fall brassicas, carrots | tomatoes, peppers, beans, summer squash, winter squash |
| September | — | tomatoes, peppers, beans, summer squash, winter squash |
| October | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| November | — | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
A year in weather
In Greenville, July runs warmest near 80°F and January coldest around 41°F, while March is the wettest month (5.0 inches) and October the driest (2.4 inches).
| Month | Mean temp | Precip |
|---|---|---|
| January | 41° | 4.4″ |
| February | 44° | 4.0″ |
| March | 52° | 5.0″ |
| April | 60° | 3.8″ |
| May | 69° | 3.2″ |
| June | 76° | 3.8″ |
| July | 80° | 4.3″ |
| August | 78° | 4.7″ |
| September | 73° | 4.0″ |
| October | 63° | 2.4″ |
| November | 51° | 3.8″ |
| December | 44° | 4.8″ |
Regional context
Similar climates Dunean, SC, Judson, SC, Wade Hampton, SC
Greenville's climate, from modelled 1991-2020 normals (EC_Earth3P_HR model via Open-Meteo), pairs 41°F Januarys with 80°F Julys — a 39°F swing. About 48 inches of precipitation falls each year.
Greenville's precipitation spreads evenly across the seasons: March peaks at 5.0 inches, while October holds 2.4 inches — no season dominates Greenville's rain calendar. It is a balanced pattern Greenville shares with places like Dunean, SC, Judson, SC and Wade Hampton, SC.
Greenville's growing window opens around March 28, once Greenville's overnight lows stop freezing — sow peas, lettuce, spinach, and radishes. Warm-soil crops in Greenville wait about two weeks past Greenville's last frost, once the soil warms. Around November 7, freezing nights resume in Greenville and tender crops must come in. In about half of years, Greenville's last freeze comes after March 28.
Similar climates: Dunean, SC, Judson, SC, Wade Hampton, SC, City View, SC, Gantt, SC.
Frequently asked
- When does it freeze in Greenville?
- In Greenville, expect the last spring frost near March 28; Greenville's first autumn frost comes around November 7.
- What is the rainy season in Greenville?
- March is the wettest month in Greenville, about 5.0 inches on average; the year totals roughly 48 inches.
- What is the warmest month in Greenville?
- Greenville peaks in July, when the mean runs near 80°F.
- What is the coldest month in Greenville?
- January is Greenville's coldest month, averaging about 41°F.
- When can I start a vegetable garden in Greenville?
- Around March 28, start frost-hardy crops in Greenville; tomatoes and basil belong a fortnight later.
- What hardiness zone is Greenville?
- With January around 41°F, Greenville's zone reflects that minimum — the USDA ZIP map confirms Greenville's band.
- What is the 10-day forecast for Greenville?
- Greenville'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 Greenville?
- See this week's day-by-day rain chances for Greenville in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Greenville?
- Current conditions for Greenville and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Greenville forecast updated?
- The Greenville forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Greenville?
- Today's sunrise and sunset times for Greenville 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 Greenville?
- The next few days in Greenville's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Greenville sits at 34.8°N; its climate zone is humid subtropical (Köppen approximation).
ZIP codes in Greenville
- 29601
- 29602
- 29603
- 29604
- 29605
- 29607
- 29609
- 29611
- 29612
- 29613
- 29614
- 29615
- 29616
- 29617