5-day weather forecast Atlanta Sep 18, 2026

35°22° · Patchy rain possible

Weather forecast Atlanta Friday Sep 18, 2026: patchy rain possible, temperature from 22 °C to 35 °C.

Precipitation probability 61%. Wind up to 4.5 m/s (gusts 7.64 m/s). Air humidity 28–80%, atmospheric pressure 761–767 mm Hg, UV index up to 8.2.

Sunrise 07:23
Sunset 19:40
First Quarter53% illuminated
Moonrise 15:09 · Moonset does not set today
Chart
Table

Forecast from 22 °C to 35 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)282727262625252525242729313335353533312523222223
Precipitation (mm/hr)0000.0100.230.080.360.09000.010.03000000.040.520.320.650.740

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)86991008618707853815552851853996100100100100100100100
Rain chance (%)9111193201736204251011399134744596123

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)1.191.390.6911.51.390.891.111.191.51.691.390.690.50.610.50.691.613.614.53.812.611.611
Wind gust (m/s)1.642.311.311.112.112.191.311.331.722.312.311.832.032.222.313.223.112.115.337.57.646.312.811.61
Wind direction (°)ESE 119°SSE 168°SSW 206°SSW 209°S 178°SW 229°W 259°WNW 285°W 273°W 273°W 273°W 279°WNW 289°NNW 346°NNE 21°ENE 68°S 179°NW 315°NNW 336°ENE 62°E 96°ESE 121°S 183°WNW 283°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)454545465457626768615046403431292833427080808080

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)767766766766766765765765766766766766766765764763762761762764764764764764

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index0000000000.72.24.25.87.78.274.71.90.300000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)25.224.321.218.316.415.114.213.914.415.916.214.812.110.6109.69.49.19.110.31312.712.914.1
PM10 (µg/m³)27.626.723.420.418.316.915.915.51617.217.615.612.811.210.610.29.99.79.610.913.513.213.314.5
Ozone (O₃) (µg/m³)61646871747777768210313215315915715315114814112711095857771
NO₂ (µg/m³)36.630.724.919.714.611.110.411.411.59.77.153.72.82.21.61.32.56.712.516.617.416.515.5
SO₂ (µg/m³)2221.91.91.81.81.81.81.92.12.11.91.61.41.31.21.21.21.31.41.41.41.4
CO (µg/m³)248240229215200189187190192191189184172157146141140145162186201200192182

Atlanta on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.