Gainesville, Georgia Weather
Thunder quiets the land. Day 93 of summer. Read this microseason across nine climate regions →
Gainesville weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 10:20 AM EDT · Open-Meteo
- TodaySep 21Clear14%—86°68°—
- TuesdaySep 22Clear33%3.6″86°69°0°
- WednesdaySep 23Overcast38%—74°63°-12°
- ThursdaySep 24Drizzle17%0.02″62°58°-12°
- FridaySep 25Overcast——79°53°+17°
- SaturdaySep 26Overcast——79°58°0°
- SundaySep 27Overcast——82°57°+3°
Air quality now AQI 54 · Moderate
AQI 54 (Moderate), driven by PM2.5. AQI projected to climb to 75 over the next 6 hours. PM2.5 at 12.3 µg/m³ (AQI 57) with a 0.95 fine-to-coarse ratio and 2 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 during the projected peak around 7 PM.
What's driving it
Ozone × UV × Sky
Ozone at AQI 40 now. With UV 3.1 peaking around 1 PM under clear skies, surface ozone likely climbs to AQI 17.
- Present
- AQI 40
- UV peak
- 3.1 at 1 PM
- Sky at peak
- clear
- Projected peak
- AQI 17
PM × Wind × Precip
PM2.5 at 12.3 µg/m³ (AQI 57) with a 0.95 fine-to-coarse ratio and 2 mph wind — combustion smoke trapped in stagnant air, not road dust.
- PM2.5/PM10
- 0.95
- 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
- 4:52 PM
- Moonset
- 2:13 AM
- In sign
- ♑︎ Capricorn
Thunder quiets the land
Read this microseason across nine climate regions →
All 72 microseasons on the year wheel →
Gainesville at a glance
- Today vs. normal: Today averages 77°F (high 86°F, low 68°F), 7°F above the 70°F normal for Sep 21
- Last frost: March 20 (1991–2020 median, NOAA station 2 km away)
- Microseason: Sep 21–25
- Planting calendar: September — harvest tomatoes, peppers, beans, summer squash, winter squash
16-Day Forecast — Gainesville
- Mon86°68°14%
- Tue86°69°33%
- Wed74°63°38%
- Thu62°58°17%
- Fri79°53°3%
- Sat79°58°2%
- Sun82°57°3%
- Mon84°59°6%
- Tue82°57°11%
- Wed83°58°22%
- Thu83°63°17%
- Fri85°61°23%
- Sat79°65°20%
- Sun73°67°19%
- Mon69°56°20%
- Tue68°50°39%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Gainesville
Interactive wind and temperature map centered on Gainesville — 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 14) is about 8 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 — Gainesville
SPC has placed Gainesville in the Marginal Risk category for severe thunderstorms today.
- TODAYMRGLMarginal 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.
Sun & seasons in Gainesville
Gainesville sits in Hall County, where the year’s longest day runs 14h 27m of daylight and its shortest just 9h 52m — a swing of +4h 35m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Atlanta, the state’s largest city, lies about 50 miles to the SW. The nearest town Gainesville tracks is Athens, roughly 35 miles to the SE.
Air quality in Gainesville
Air quality in Gainesville’s county has trended dirtier since 2020; its cleanest year on record was 2020 (median AQI 44). See the full air-quality history for Gainesville.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| February | lettuce, peas, spinach, radishes | — |
| March | lettuce, peas, spinach, radishes | radishes |
| April | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| May | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| June | beans, squash | lettuce, peas, beans, summer squash, garlic |
| July | tomatoes, peppers, beans, squash | tomatoes, peppers, beans, summer squash, winter squash |
| August | tomatoes, peppers, 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 |
| November | — | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| December | — | fall brassicas, carrots |
A year in weather
Gainesville peaks at about 79°F in July and bottoms near 42°F in January; January brings the heaviest rain (5.0 inches) and October the least (3.9 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 42° | 5.0″ | 7 |
| February | 46° | 4.7″ | 8 |
| March | 53° | 4.8″ | 7 |
| April | 61° | 4.0″ | 7 |
| May | 69° | 4.0″ | 7 |
| June | 76° | 4.2″ | 7 |
| July | 79° | 4.4″ | 7 |
| August | 78° | 4.7″ | 7 |
| September | 72° | 3.9″ | 5 |
| October | 62° | 3.9″ | 5 |
| November | 52° | 4.2″ | 6 |
| December | 45° | 4.7″ | 8 |
Regional context
Similar climates Oakwood, GA, Flowery Branch, GA, Talmo, GA
By the nearest station's NOAA NCEI 1991-2020 normals, Gainesville sees 42°F Januarys and 79°F Julys, a 36°F range, plus around 52.4 inches of precipitation across 79 days.
No season owns Gainesville's rain: January reaches 5.0 inches across 7.1 days and October keeps 3.9 inches on 4.6, an even spread through Gainesville's year. It is a balanced pattern Gainesville shares with places like Oakwood, GA, Flowery Branch, GA and Talmo, GA.
Gainesville's growing window opens around March 20, once Gainesville's overnight lows stop freezing — sow peas, lettuce, spinach, and radishes. Hold Gainesville's tender crops — tomatoes, peppers, basil — until 10-14 days past Gainesville's last frost. Around November 14, freezing nights resume in Gainesville and tender crops must come in. Sheltered Gainesville yards can escape a light frost.
Similar climates: Oakwood, GA, Flowery Branch, GA, Talmo, GA, Gillsville, GA, Lula, GA.
Frequently asked
- When does it freeze in Gainesville?
- In Gainesville, expect the last spring frost near March 20; Gainesville's first autumn frost comes around November 14.
- What is the rainy season in Gainesville?
- January is the wettest month in Gainesville, about 5.0 inches on average; the year totals roughly 52 inches.
- What is the warmest month in Gainesville?
- On average July tops the year in Gainesville at about 79°F.
- What is the coldest month in Gainesville?
- The coldest stretch in Gainesville falls in January, around 42°F on average.
- When can I start a vegetable garden in Gainesville?
- Around March 20, start frost-hardy crops in Gainesville; tomatoes and basil belong a fortnight later.
- How many rainy days does Gainesville get?
- Gainesville averages about 79 days with measurable rain or snow each year.
- What hardiness zone is Gainesville?
- Because Gainesville bottoms near 42°F in January, that winter low sets Gainesville's USDA zone — verify by ZIP.
- What is the 10-day forecast for Gainesville?
- Gainesville'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 Gainesville?
- See this week's day-by-day rain chances for Gainesville in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Gainesville?
- Current conditions for Gainesville and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Gainesville forecast updated?
- The Gainesville forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Gainesville?
- Today's sunrise and sunset times for Gainesville 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 Gainesville?
- The next few days in Gainesville's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Gainesville sits at 34.3°N; its climate zone is humid subtropical (Köppen approximation).
ZIP codes in Gainesville
- 30501
- 30504
- 30506
- 30507