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The Northeast GA Weather Center's 10-Day AccuWeather Forecast

ISSUED: 09/29/25 10:00AM ET VALID UNTIL: 10/08/25 01:00pm ET FORECASTER: Timothy Hayes Commerce Georgia Forecast Office

FORECAST DISCUSSION 🍂

Good morning, Northeast Georgia! We are officially starting the new week and the final quarter of the year with a major transition in our weather pattern, bringing us the first truly fall-like conditions of the season.

The dominant feature shaping our forecast is a significant mid-latitude shortwave trough dropping southward across the Eastern U.S. This is driving a powerful, dry continental high-pressure system from the Midwest right into the Southeast. On Monday and Tuesday, the last vestiges of warm, humid air will be pushed out by this system. This will lead to a dramatic drop in dewpoint temperatures, shifting from the sticky upper 60s to the crisp 40s and low 50s.

The high pressure will settle in overhead from Wednesday through Friday, providing a multi-day stretch of picture-perfect weather. With clear skies and light winds, we anticipate a cool-down with morning lows dipping into the low 50s and even the upper 40s across higher elevations. Daytime highs will be very comfortable, averaging in the upper 70s. This subsidence (sinking air) will suppress almost all cloud cover and rain development.

As we move into the weekend (Saturday and Sunday), the high-pressure center will migrate offshore into the Atlantic. This shift will allow for a return flow—winds out of the south-southwest—which will begin to pull Gulf moisture back into the region. This increases our humidity levels slightly and brings temperatures back into the low 80s.

The final change arrives early next week (Monday and Tuesday, Oct 6-7) as a weak upper-level disturbance tracks across the Deep South, increasing our chances for scattered showers and thunderstorms before another brief shot of drier, cooler air settles in by Wednesday, October 8th.

Overall, enjoy this stretch! It’s an outstanding forecast with plenty of sunshine and comfortable conditions, a well-deserved break from the summer heat.

DETAILED FORECAST 🔎

Monday, September 29th, 2025 🌤️ High 84∘F • Low 63∘F • Rain 20% • Conditions: Partly Sunny The day begins warm and slightly humid as the high pressure system pushes toward us. A weak moisture plume associated with the steering flow of Tropical Storm Imelda will keep a slight chance of an afternoon shower in the forecast, but most areas will remain dry. Expect rapidly clearing skies tonight as the drier air arrives.

Tuesday, September 30th, 2025 ☀️ High 79∘F • Low 55∘F • Rain 0% • Conditions: Mostly Sunny This is the big change day! The high pressure settles in, bringing a rush of drier air. We’ll see mostly sunny skies and noticeably lower humidity. The wind will shift to the north, creating a refreshing atmosphere.

Wednesday, October 1st, 2025 ☀️ High 76∘F • Low 48∘F • Rain 0% • Conditions: Sunny The coolest morning of the forecast is expected, with temperatures dipping into the 40s. Abundant sunshine and calm winds will make for a spectacular, comfortable afternoon. This is true fall weather!

Thursday, October 2nd, 2025 ☀️ High 77∘F • Low 53∘F • Rain 0% • Conditions: Sunny High pressure maintains control. Expect another gorgeous day with plenty of blue sky and low humidity. Excellent conditions for outdoor activities and open windows!

Friday, October 3rd, 2025 ☀️ High 80∘F • Low 57∘F • Rain 0% • Conditions: Mostly Sunny The high-pressure system begins to ease east, allowing for a slight warming trend. Temperatures will climb back toward the 80-degree mark, but the airmass remains dry and comfortable thanks to the lingering influence of the cool front.

Saturday, October 4th, 2025 ⛅ High 83∘F • Low 58∘F • Rain 10% • Conditions: Partly Cloudy A gentle shift to a southwesterly flow begins to pull in moisture from the Gulf. This means a return to partly cloudy skies and a slight bump in humidity, but the day remains mostly dry and warm.

Sunday, October 5th, 2025 ⛅ High 82∘F • Low 60∘F • Rain 10% • Conditions: Partly Cloudy Similar to Saturday, the pattern is stable and warm. Isolated, brief pop-up showers cannot be ruled out, especially near the mountains, but overall, it's a great day for the end of the weekend.

Monday, October 6th, 2025 🌦️ High 81∘F • Low 57∘F • Rain 20% • Conditions: Scattered Showers A weak trough approaches from the west, interacting with the returning moisture. Expect scattered showers and possible isolated thunderstorms, mainly in the afternoon. The cloud cover will keep the high temperature stable.

Tuesday, October 7th, 2025 🌧️ High 78∘F • Low 56∘F • Rain 30% • Conditions: Showers This is the best chance for widespread rain during the 10-day period as the weak disturbance passes directly overhead. Showers are likely, especially during the morning and mid-day hours.

Wednesday, October 8th, 2025 🌤️ High 75∘F • Low 53∘F • Rain 10% • Conditions: Mostly Sunny Rain chances drop quickly as the system exits and a cooler, drier airmass returns for a quick visit. Mostly sunny skies and crisp conditions will end our 10-day forecast period perfectly.

SEVERE WEATHER OUTLOOK ⚠️

Severe Weather Outlook Discussion The severe weather threat for Northeast Georgia for this 10-day period is Very Low. The primary mitigating factor is the powerful, dry continental air mass ushered in by the high-pressure system, which settles in from Tuesday through Friday. This high-pressure system introduces subsidence (sinking air) which suppresses vertical cloud development, thus eliminating the needed instability for severe thunderstorms. Even on the rainier days (Monday, Oct 6th, and Tuesday, Oct 7th), the rain-producing system is weak and lacks the dynamic wind shear required to organize severe storms.

TROPICAL OUTLOOK 🌀

The Atlantic basin is highly active, currently featuring two major systems: Tropical Storm Imelda and powerful Hurricane Humberto. While neither is expected to directly impact Northeast Georgia, their influence on the weather pattern is crucial, particularly for coastal areas.

• Tropical Storm Imelda: As of this morning, Imelda is a strong Tropical Storm located near the Bahamas, moving generally northward. It is forecast to strengthen into a hurricane by Tuesday.

• Hurricane Humberto: Humberto is a powerful, large Category 4 hurricane churning well out in the Atlantic, south-southwest of Bermuda. Humberto recently reached Category 5 status, demonstrating its immense power.

The Fujiwhara Effect and Steering Flow Science: The key element sparing the U.S. Southeast from a direct hit from Imelda is the strong interaction between these two storms, known as the Fujiwhara Effect. This effect describes how two cyclonic circulations (tropical cyclones) rotating in the same direction—counter-clockwise in the Northern Hemisphere—will rotate around a common center point. In this case, the larger, more powerful Hurricane Humberto is acting as the dominant system, steering the smaller Tropical Storm Imelda.

Humberto's vast wind field and cyclonic rotation are effectively "tugging" Imelda. This interaction, combined with a breakdown of the subtropical ridge that would normally push storms westward, is forcing Imelda into a sharp east-northeast turn toward the open ocean. This dynamic is what is keeping Imelda’s heaviest rain bands and strongest winds offshore.

Impacts to Northeast Georgia (Inland): For Northeast Georgia, the primary weather process associated with Imelda is the indirect push of dry air thanks to the strong high pressure system sinking down the backside of the tropical systems' combined circulation. This helps clean out our atmosphere and bring in the beautiful weather.

Coastal Impacts (East Georgia Coast): Coastal Georgia will experience significant indirect impacts this week. Swells generated by both the large wind field of Humberto and the close passage of Imelda will produce life-threatening surf and rip current conditions along the entire East Coast through mid-week. Minor coastal flooding and beach erosion are also possible during high tide cycles due to onshore winds associated with Imelda's proximity.

Behind the Systems: While Imelda and Humberto are currently the focus, the environment remains ripe for development. Sea surface temperatures (SSTs) across the main development region of the Atlantic are well above average, and climatology indicates the season remains active. Forecasters are watching a few disorganized tropical waves well east of the Lesser Antilles, suggesting October could continue to be a busy month with the potential for additional named storms.

FINAL THOUGHTS ☀️➡️🍂

This 10-day forecast is truly outstanding for Northeast Georgia! We are transitioning into a beautiful, crisp fall pattern marked by comfortable low humidity and abundant sunshine, a welcome change after the tropical threat was steered away. Take advantage of the pleasant weather, especially the mid-week stretch, for any outdoor plans.

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The Northeast GA Weather Center's 7-Day AccuWeather Forecast

ISSUED: 09/29/2025 10:00AM ET VALID UNTIL: 10/05/25 01:00pm ET FORECASTER: Timothy Hayes Commerce Georgia Forecast Office

FORECAST DISCUSSION - Cleveland, GA 🍂

Good morning, Cleveland! Get ready for a spectacular weather transition as we close out September and head into October. This forecast period is dominated by a powerful weather feature that will bring the first true taste of fall to the mountains: a significant mid-latitude shortwave trough.

This trough is driving a robust, dry continental high-pressure system from the Midwest right into the Southeast. For Cleveland, located in the foothills, this means a dramatic shift. On Monday and Tuesday, the last of the warm, humid summer air will be scoured out. Expect dewpoint temperatures to plummet from the sticky 60s down to the crisp 40s and low 50s.

The high pressure will settle in overhead from Wednesday through Friday, delivering a multi-day stretch of "Mountain Chill." Due to the higher elevation and clear overnight skies, we anticipate morning lows dipping into the low 40s, particularly in valley locations surrounding Cleveland. Daytime highs will be very comfortable, averaging in the mid-70s. This subsidence (sinking air) will completely suppress cloud cover and rain development during the mid-week.

As we move into the weekend (Saturday and Sunday), the high-pressure center begins to migrate offshore. This shift allows for a gentle return flow—winds out of the south-southwest—which will slightly increase humidity and bring our daily highs back toward the upper 70s. Cleveland's topography means we have a slightly higher chance of isolated afternoon showers on the weekend due to upslope flow interacting with the returning moisture.

The final change arrives early next week (Monday and Tuesday, Oct 6-7) as a weak upper-level disturbance tracks across the Deep South, increasing our chances for scattered showers and thunderstorms before another brief shot of drier, cooler air settles in by Wednesday, October 8th.