Georgia · NWS FFC office

Alpharetta, GA weather

It is 48°F and clear at Atlanta, De Kalb-Peachtree Airport as of Oct 28, 2:15 AM EDT. Overnight: Partly Cloudy, low near 50°F. Forecast from the National Weather Service, issued Oct 28, 1:21 AM EDT.

Updated Oct 28, 2:21 AM EDT (snapshot)

Current conditions

Temperature

48°F

Clear

Wind

Calm

Humidity 87% · dew point 45°F

Pressure · visibility

30.27 inHg

Visibility 10 mi

Observed at Atlanta, De Kalb-Peachtree Airport (KPDK), Oct 28, 2:15 AM EDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Alpharetta forecast zone right now.

Around the NWS FFC forecast area

No active alerts in zones served by the FFC office near Alpharetta.

From the alert snapshot of Oct 28, 2026, 2:15 AM EDT. Georgia has 3 active alerts: see them all.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Alpharetta (local time)
TimeTempForecastPrecip. chanceWind
Wed 2 AM51°FPartly Cloudy0%E 5 mph
Wed 3 AM51°FPartly Cloudy0%E 5 mph
Wed 4 AM50°FPartly Cloudy0%E 5 mph
Wed 5 AM50°FPartly Cloudy0%E 5 mph
Wed 6 AM50°FPartly Sunny0%E 5 mph
Wed 7 AM50°FPartly Sunny0%E 5 mph
Wed 8 AM50°FPartly Sunny0%E 5 mph
Wed 9 AM52°FPartly Sunny0%E 5 mph
Wed 10 AM58°FMostly Cloudy0%E 10 mph
Wed 11 AM62°FMostly Cloudy0%E 10 mph
Wed 12 PM65°FMostly Cloudy0%E 10 mph
Wed 1 PM68°FMostly Cloudy0%E 10 mph
Wed 2 PM70°FPartly Sunny0%E 10 mph
Wed 3 PM71°FPartly Sunny0%E 10 mph
Wed 4 PM71°FPartly Sunny0%E 10 mph
Wed 5 PM71°FPartly Sunny0%E 10 mph
Wed 6 PM69°FMostly Cloudy0%E 5 mph
Wed 7 PM66°FMostly Cloudy0%E 5 mph
Wed 8 PM61°FMostly Cloudy0%E 5 mph
Wed 9 PM59°FPartly Cloudy0%E 5 mph
Wed 10 PM57°FPartly Cloudy0%E 5 mph
Wed 11 PM56°FPartly Cloudy0%E 5 mph
Thu 12 AM55°FPartly Cloudy0%E 5 mph
Thu 1 AM54°FPartly Cloudy0%E 5 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Alpharetta can differ.

7-day forecast

Overnight

Low 50°F

Partly cloudy, with a low around 50. Northeast wind around 5 mph.

Wednesday

High 72°F·Low 53°F

Partly sunny, with a high near 72. East wind 5 to 10 mph, with gusts as high as 20 mph.

Wednesday Night: Partly cloudy, with a low around 53. East wind 5 to 10 mph, with gusts as high as 20 mph.

Thursday

High 76°F·Low 52°F

Mostly sunny, with a high near 76. East wind 5 to 10 mph.

Thursday Night: Mostly clear, with a low around 52. Northeast wind 0 to 5 mph.

Friday

High 78°F·Low 58°F

Sunny, with a high near 78.

Friday Night: Mostly cloudy, with a low around 58.

Saturday

High 73°F·Low 56°F

A slight chance of rain showers after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 20%.

Saturday Night: A slight chance of rain showers before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.

Sunday

High 66°F·Low 55°F

Showers and thunderstorms likely. Cloudy, with a high near 66. Chance of precipitation is 70%.

Sunday Night: Rain showers likely. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

Monday

High 72°F·Low 57°F

A chance of rain showers. Partly sunny, with a high near 72. Chance of precipitation is 30%.

Monday Night: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 57. Chance of precipitation is 20%.

Tuesday

High 74°F

A chance of rain showers after 7am. Partly sunny, with a high near 74.

Nearby cities

Larger cities in the area

Other cities in Fulton County

See every city we cover in Georgia, or check all active alerts.

About this forecast

Forecast office
Alpharetta is served by the National Weather Service FFC forecast office, forecast zone GAZ033, county zone GAC121.
Location used
The Census Bureau's internal point for Alpharetta (34.0709, -84.2726), in Fulton County. Population: 67,275 (2024 estimate), number 13 of the 59 Georgia cities on this site.
Radar
Nearest NWS radar: KFFC. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/34.0709,-84.2726 (forecast issued Oct 28, 1:21 AM EDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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