Marine Weather and Tide Forecast for Marietta, GA

SHORT TERM
(Today through Tuesday)
Issued at 313 AM EDT Mon Aug 3 2026

Conditions this morning will see patchy cloud cover and even some patchy fog (especially in areas which saw good rains over the last 24-36 hrs.

The rest of the near term outlook remains fairly inactive even with the current upper level pattern. Mid and upper level flow will hold the trough/cut-off low over the southeast as ridging to the east and west erode the feature. This means that upper level forcing will be relatively weak, though enough to allow scattered diurnally driven convection each afternoon. With plenty of moisture still in the area and likely slow storm motion, locally heavy rainfall could result in a patchy flash flooding risk. While instability will likely be limited, any stronger storms may be capable of gusts in the 30 to 50 mph range.

Thanks to the trough, temperatures will also remain slightly cooler than normal with highs in the mid/upper 80s climbing to the low 90s by Wednesday.

LONG TERM
(Tuesday night through Sunday)
Issued at 313 AM EDT Mon Aug 3 2026

Daily Storm Chances and a Slight Warming Trend:

North and Central Georgia will remain in moist southwest flow mid- week as a cutoff mid-level low remains parked over the TN Valley.
Large scale ascent from this system will support another day of numerous to widespread showers and storms, with highest coverage across northern areas. The low will finally slide north Thursday as it gets squeezed between a ridge pushing in from the Western Atlantic, and broad troughing across the Central US. Coverage of showers and storms will decrease, becoming scattered to numerous through Friday as plenty of moisture and instability remains over the region. While no widespread severe weather is expected, a few strong storms will be possible during the period, with strong winds as the primary threat, in addition to localized flash flooding from the high moisture content. Model guidance remains in good agreement on this typical summertime pattern persisting into next weekend.
High temperatures will initially be in the 80s to low 90s mid-week due to increased cloud cover and proximity of the mid-level low, but will gradually warm up to the low to mid 90s by the weekend as the ridge builds in.

AVIATION
(12Z TAFS)
Issued at 635 AM EDT Mon Aug 3 2026

VFR conditions for ATL metro sites. Cigs may fall to IFR briefly for far northwest metro, though likely won't impact ATL. Cigs lift thru morn, with iso to sct shra psbl. Tsra psbl for east GA. Winds mostly out of west at 3 to 8 kts, becoming light to vrb overnight.
Patchy MVFR cigs psbl Tues morn.

//ATL Confidence
12Z Update
Medium confidence shra/tsra risk this afternoon.
Medium confidence cigs Tues morn.
High confidence all other elements.
SM

PRELIMINARY POINT TEMPS/POPS
Athens 86 70 86 69 / 20 20 70 50 Atlanta 87 71 87 72 / 30 10 70 30 Blairsville 80 66 81 66 / 50 10 80 50 Cartersville 86 69 87 70 / 30 10 70 30 Columbus 90 72 91 73 / 30 10 40 10 Gainesville 84 70 84 70 / 20 20 80 50 Macon 89 71 90 71 / 20 10 50 20 Rome 86 68 88 69 / 40 10 60 30 Peachtree City 87 69 87 70 / 30 10 70 20 Vidalia 88 72 91 72 / 70 20 40 20

FFC WATCHES/WARNINGS/ADVISORIES
None.