The Brief First full day of fall brings a forecast high of 90 degrees in Atlanta, about five degrees above average. A cold front Thursday could bring storms and cooler air, dropping temperatures back into the upper 70s by the weekend. The first full day of fall is bringing anything but sweater weather to North Georgia – residents should brace for more summer-like heat before relief arrives later this week. 🌤️ 5-Day ForecastTuesday: ☀️ Hot, high near 90; slim chance of isolated shower. Saturday: 🍂 Pleasant and cooler; highs upper 70s, lows in the low 60s.