Weather in Alpharetta, GA
Alpharetta, Sunday, 9 August, 03:11
Clear. Feels like 71°. High 91°, low 70°.
Monthly outlook for Alpharetta, GA: average high 97°, average low 76.4°. That is 6.1° above the climate normal for August. Precipitation is expected on 7 days (about 0.8 inches), against a normal of 7 days and 2.1 inches. The warmest day looks like 21 August (103.4°), the coolest 9 August (69.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 95.3° | 86° | +5.2° |
| 19 August – 28 August | 99.8° | 85.9° | +7.8° |
| 29 August – 7 September | at normal | 83.6° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Sandy Springs (11 mi).
0.02
Alpharetta, Monday, 10 August
Light rain. High 91°, low 73°.
0.01Alpharetta, Tuesday, 11 August
Light rain. High 95°, low 76°.
0.19Alpharetta, Wednesday, 12 August
Light rain. High 95°, low 75°.
0.13Alpharetta, Thursday, 13 August
Light rain. High 93°, low 72°.
0.09Alpharetta, Friday, 14 August
Light rain. High 97°, low 76°.
0.04Alpharetta, Saturday, 15 August
Light rain. High 98°, low 79°.
0.04Alpharetta, Sunday, 16 August
Light rain. High 100°, low 75°.
0
Alpharetta, Monday, 17 August
Partly cloudy. High 101°, low 82°.
0Alpharetta, Tuesday, 18 August
Partly cloudy. High 93°, low 78°.
0
Alpharetta, Wednesday, 19 August
Clear. High 97°, low 75°.
0Alpharetta, Thursday, 20 August
Clear. High 100°, low 78°.
0.04Alpharetta, Friday, 21 August
Light rain. High 103°, low 82°.
0.09Alpharetta, Saturday, 22 August
Light rain. High 103°, low 76°.
0.01Alpharetta, Sunday, 23 August
Light rain. High 99°, low 77°.
0.01Alpharetta, Monday, 24 August
Light rain. High 97°, low 78°.
0.16
Alpharetta, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.15Alpharetta, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.09Alpharetta, Thursday, 27 August
Climate normal for this date — 60-year average.
0.11Alpharetta, Friday, 28 August
Climate normal for this date — 60-year average.
0.07Alpharetta, Saturday, 29 August
Climate normal for this date — 60-year average.
0.12Alpharetta, Sunday, 30 August
Climate normal for this date — 60-year average.
0.18Alpharetta, Monday, 31 August
Climate normal for this date — 60-year average.
0.13Alpharetta, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12Alpharetta, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.12Alpharetta, Thursday, 3 September
Climate normal for this date — 60-year average.
0.16Alpharetta, Friday, 4 September
Climate normal for this date — 60-year average.
0.18Alpharetta, Saturday, 5 September
Climate normal for this date — 60-year average.
0.06Alpharetta, Sunday, 6 September
Climate normal for this date — 60-year average.
0.13Alpharetta, Monday, 7 September
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Alpharetta, GA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Alpharetta, GA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
69°Weather in Annapolis, MD76°Weather in Atlanta, GA73°Weather in Augusta, ME
68°Weather in Austin, TX81°Weather in Baton Rouge, LA77°Weather in Bismarck, ND
67°Weather in Boise, ID72°Weather in Boston, MA73°Weather in Carson City, NV76°Weather in Charleston, WV74°Weather in Charlotte Amalie, VI81°Weather in Cheyenne, WY71°Weather in Columbia, SC75°Weather in Columbus, OH70°Weather in Concord, NH70°Weather in Denver, CO77°Weather in Des Moines, IA73°Weather in Dover, DE76°Weather in Frankfort, KY73°Weather in Harrisburg, PA73°Weather in Hartford, CT71°Weather in Helena, MT64°Weather in Honolulu, HI77°Weather in Indianapolis, IN73°Weather in Jackson, MS76°Weather in Jefferson City, MO77°Weather in Juneau, AK48°Weather in Lansing, MI61°Weather in Lincoln, NE79°Weather in Little Rock, AR75°Weather in Madison, WI64°Weather in Montgomery, AL77°Weather in Montpelier, VT64°Weather in Nashville, TN70°Weather in Oklahoma City, OK83°Weather in Olympia, WA58°Weather in Phoenix, AZ94°Weather in Pierre, SD77°Weather in Providence, RI73°Weather in Raleigh, NC75°Weather in Richmond, VA77°Weather in Sacramento, CA71°Weather in Salem, OR63°Weather in Salt Lake City, UT83°Weather in San Juan, PR82°Weather in Santa Fe, NM74°Weather in Springfield, IL74°Weather in St. Paul, MN69°Weather in Tallahassee, FL75°Weather in Topeka, KS77°Weather in Trenton, NJ73°Weather in Washington, DC76°73°Weather in Piedmont, GA73°Weather in Pineora, GA74°Weather in Pittman, GA72°Weather in Plainfield, GA75°Weather in Potterville, GA74°Weather in Preston, GA75°Weather in Pridgen, GA75°Weather in Queensland, GA75°Weather in Raleigh, GA74°Weather in Raymond, GA72°Weather in Red Oak, GA73°Weather in Renfroe, GA74°Weather in Rex, GA74°Weather in Richwood, GA75°Weather in Rising Fawn, GA72°Weather in Rocky Mount, GA71°Weather in Ruckersville, GA75°Weather in Rupert, GA74°Weather in Saint Clair, GA75°