5-day weather forecast Atlanta Sep 18, 2026

23°23–36° · Patchy light rain

Weather forecast Atlanta today Sep 18, 2026: sunny, temperature from 23 °C to 36 °C.

Precipitation probability 74%. Wind up to 2.69 m/s (gusts 4.92 m/s). Air humidity 28–86%, 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
Fri, Sep 18, 2026

Forecast from 23 °C to 36 °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)282827272625252524252730323435363635343332302623
Precipitation (mm/hr)0000000000000000000.210003.881.43

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 (%)044553000000000126142758952908351
Rain chance (%)111112222111111143178497462

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)1.311.391.391.311.390.891.1111.111.191.391.391.311.191.190.810.610.610.3911.810.391.112.69
Wind gust (m/s)2.112.311.811.611.890.891.111.111.531.641.892.031.921.861.921.892.031.721.812.112.7233.394.92
Wind direction (°)SSW 206°SW 220°SW 217°SW 217°WSW 248°WSW 243°W 271°W 278°W 269°W 270°W 274°WNW 296°NW 307°NW 316°NW 326°NNW 335°NNW 345°NNE 15°NW 320°S 171°SSW 201°SE 126°SSE 161°SW 221°

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 (%)414142434449505152474246423733302830313439467386

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)767766766766766766766766767767767766765765764763762762761761762763764764

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 Index0000000000.72.24.36.588.274.92.710.20000

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)20.922.724.124.724.824.92525.32421.218.113.811.810.910.710.39.69.110.211.912.413.914.714.7
PM10 (µg/m³)22.123.925.42626.226.326.426.724.922.11914.712.411.511.31110.29.710.912.312.714.114.915
Ozone (O₃) (µg/m³)5045413835332720286912516617917717216916215113210989756557
NO₂ (µg/m³)33.9373938.737.336.538.641.440.430.216.15.5222.41.81.73.17.31317.620.221.822.6
SO₂ (µg/m³)1.51.71.81.91.922.12.12.32.42.52.52.42.11.91.71.51.41.31.31.31.41.61.7
CO (µg/m³)333350368390412420406378343296242199176164156149146154179214247277306324
Fri, Sep 18, 2026

Frequently asked questions about the 5-day weather in Atlanta

What will the weather be like in Atlanta over the next 5 days?

Over the next 5 days in Atlanta the temperature is expected to range from about 21 to 36 °C. See the detailed hourly forecast for each of the 5 days in the charts above.

On which of the next 5 days will it rain in Atlanta?

The chance of rain in Atlanta over the next 5 days reaches 81%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.

How accurate is the 5-day weather forecast for Atlanta?

A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.

Which of the next 5 days in Atlanta will be the warmest and which the coolest?

Over the next 5 days the temperature in Atlanta ranges from about 21 to 36 °C. Compare the warmest and coolest day on the temperature chart above.

Will it be windy in Atlanta over the next 5 days?

Over the next 5 days the wind in Atlanta picks up to 5 m/s. The windiest days are easy to spot on the wind chart above.

Which day of the week in Atlanta is best for a walk or a trip?

For a walk or a trip, pick the days with the lowest chance of rain (up to 81%) and light wind — easy to compare on the 5-day charts above.

How can I best use the 5-day forecast for Atlanta?

The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.

Will I need an umbrella or sunscreen in Atlanta this week?

Rain reaches a 81% chance across the next 5 days, so pack something waterproof for the wettest of them — the daily strip above shows which. Today’s UV index peaks at 8.2; sunscreen is worth it from about 3 upwards.

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.