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Alpharetta, GA Weather
Current conditions
Forecast for this hour (no station report in the last two hours)
Forecast
10-day-
Saturday Night
Clear, with a low around 45.
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Sunday
Sunny, with a high near 68.
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Sunday Night
Clear, with a low around 46.
National Weather Service forecast updated 2 days ago.
Hourly
Hourly forecast- Now63°
- 8 PM60°
- 9 PM57°
- 10 PM54°
- 11 PM52°
- Sun12 AM51°
- 1 AM50°
- 2 AM50°
- 3 AM49°
- 4 AM48°
- 5 AM47°
- 6 AM46°
- 7 AM45°
- 8 AM46°
- 9 AM49°
- 10 AM54°
- 11 AM58°
- 12 PM61°
- 1 PM64°
- 2 PM66°
- 3 PM67°
- 4 PM68°
- 5 PM67°
- 6 PM65°
10-day forecast
Details- ThuOct 22Sunny49°77°
- FriOct 23Sunny48°71°
- TodayOct 24Sunny45°68°
- SunOct 25Sunny46°68°
- MonOct 26Sunny44°71°
- TueOct 27Mostly Sunny47°74°
- WedOct 28Mostly Sunny48°72°
- ThuOct 29Light rain0.04 in55°67°
- FriOct 30Sunny53°74°
- SatOct 31Cloudy53°70°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Alpharetta
More weather news-
Atlanta forecast: Sunny days continue as low humidity raises fire concernsAtlanta warms to 76 degrees after a chilly start, with dry weather expected for fans heading to State Farm Arena tonight. Low humidity keeps fire concerns elevated, while a weak front could bring slight rain chances…
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The National Weather Service says relative humidity could drop to 30% or lower for at least four hours Wednesday afternoon and evening. With dry fuels across the area, residents should check with local burn-permitting…
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High fire danger in Cobb and much of Georgia ThursdayThe National Weather Service issued a special weather statement for north and central Georgia for Thursday, Oct. 22. Weather reports can be packed with unfamiliar terms. Our plain-English guide to understanding weather…
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Subtropical storm Josephine forms in Atlantic: What it means for north GeorgiaATLANTA - Subtropical Storm Josephine formed Wednesday afternoon off the East Coast, becoming the latest named storm of the Atlantic hurricane season. As of 5 p.m. Wednesday, Josephine was located about 265 miles south…
- High fire danger expected across much of Georgia Wednesday
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Cobb climate summary & weather forecast for Thursday, October 22, 2026The National Weather Service has issued a special weather statement for Cobb County and other parts of the region due to high fire danger conditions until 7 p.m for most of north and central Georgia brought by low…
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FIRST ALERT FORECAST: Sunny, mid-70s this afternoonATLANTA, Ga. (Atlanta News First) — Plan on another great day in north Georgia with plenty of sunshine. Highs were in the mid-70s on Tuesday, and you can expect similar high temperatures this afternoon. Highs will…
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Wednesday night weather forecastFOX 5 Atlanta Lows drop into the 40s tonight before sunshine boosts Thursday highs to 78 degrees. High pressure brings cooler, breezy conditions for the weekend as temperatures soften into the 60s. Expect pleasant 70s…
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Wednesday morning weather forecastWednesday starts chilly across North Georgia, with temperatures in the 40s and 50s, but plenty of sunshine and a high near 76 in Atlanta. A dry front arrives Friday, bringing slightly cooler weather for the weekend…
Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- SatGood (50)
- SunGood (48)
Atlanta, GA reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyMarietta Dobbins Afb, records since 1949. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Atlanta 37 km
- Sandy Springs 19 km
- Roswell 9 km
- Johns Creek 10 km
- Marietta 27 km
- Smyrna 29 km
- Brookhaven 24 km
- Stonecrest 43 km
- Dunwoody 15 km
- Peachtree Corners 13 km
- Gainesville 50 km
- Milton 6 km
Forecasters' discussion
From the National Weather Service office in FFC, issued 4 hrs ago
Key Messages
- Breezy conditions are expected through the weekend.
- Rain-free conditions and near-seasonal temperatures will remain for the next 7 days, with a slight warm up by the end of the week.
Short Term
(This afternoon through Sunday) Issued at 213 PM EDT Sat Oct 24 2026
Current satellite loop shows mostly clear conditions across the area with some Mid level clouds streaming across NE GA caught in the dry cold air advection coming in from the Carolinas. Models continue to show a fairly strong wedge building down the eastern seaboard with the ridge centered over the Mid-Atlantic/New England states. This ridge/wedge is keeping things dry but with the overall easterly flow we are seeing a little bit of moisture return from the Atlantic. This moisture return is keeping RH values above critical fire danger thresholds and we will see some increase cloud cover as we go into next week. With the wedge building into the are and a low pressure system rotation off the GA/FL coast, the pressure gradient is tightening across the area creating gusty NE winds. Seeing E to NE winds speeds in the 10-15kt range with gust 25-30kt this afternoon. These winds speeds are expected to diminish over night but hey will pick back up again Sun.
Long Term
(Monday morning through next Friday) Issued at 213 PM EDT Sat Oct 24 2026
A mid level ridge centered over central CONUS will slowly shift eastward over the next few days. With our area along its eastern periphery, northerly flow will persist across the region heading into the start of the week. Combined with a weak low pressure feature off the Carolina Coast, this will support a continuation of the high pressure wedge pattern seen over the last several days, along with a relatively dry northeast wind component. With this in mind, expect mostly sunny skies and seasonable temperatures to continue through the week. Overnight lows will range from the 40s to low 50s, with afternoon highs in the 70s and no chance of rain to round out October.
As we move into the latter half of next week, the upper level pattern begins to shift. A developing trough across the Plains and its associated surface low could eventually increase our local rain chances as the system propagates eastward, though the outcome remains uncertain as we head into early November.
Aviation
(18Z TAFS) Issued at 103 PM EDT Sat Oct 24 2026
Mostly clear skies with no precipitation or restrictions to VSBYs expected through this TAF period. Winds out of the E to NE in the 10-15kt range gusting to 25kt across the area. Will see wind speeds diminish to 10kt or less over night with speeds picking back up Sun afternoon similar to Today.
//ATL Confidence...18Z Update... Confidence high on all elements.
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Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.