Marine Weather Net

St. Marys, GA Weather Forecast




Saint Marys, Georgia

 Lat: 30.73N, Lon: 81.55W

Current Conditions Updated: 1256 AM EDT TUE AUG 11 2026

Mostly Cloudy
Temp: 80°F
  • Humidity:
  • 87%
  • Winds:
  • 3 MPH SW
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.14 in.
  • Dewpoint:
  • 76°F
  • Heat index:
  • 85°F

  • Sunrise:
  • 6:48 AM EDT
  • Sunset:
  • 8:10 PM EDT
  • Moonrise:
  • 5:23 AM EDT
  • Moonset:
  • 7:42 PM EDT

TONIGHT

PARTLY CLOUDY
Lo: 79°F

TUESDAY

PARTLY SUNNY
Hi: 95°F
Lo: 75°F
Precip: 60%

WEDNESDAY

MOSTLY SUNNY
Hi: 95°F
Lo: 75°F
Precip: 40%

THURSDAY

SUNNY

Hi: 95°F
Lo: 75°F
Precip: 20%
Weather Forecast In Detail:
Forecast Issued: 1207 AM EDT Tue Aug 11 2026

HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 7 PM EDT THIS EVENING
Rest Of Tonight...Partly cloudy. Lows in the upper 70s. Southwest winds 5 to 10 mph.
Tuesday...Partly sunny. Showers and thunderstorms likely in the afternoon. Highs in the mid 90s. Southwest winds 5 to 10 mph. Chance of rain 60 percent. Heat index values up to 109.
Tuesday Night...Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 70s. Southwest winds 5 to 10 mph. Chance of rain 50 percent.
Wednesday...Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. West winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 110.
Wednesday Night...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 70s. Southwest winds around 5 mph. Chance of rain 40 percent.
Thursday...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 110.
Thursday Night...Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent.
Friday And Friday Night...Partly cloudy. A chance of showers and thunderstorms. Highs in the mid 90s. Lows in the mid 70s. Chance of rain 40 percent. Heat index values up to 115.
Saturday...Partly cloudy with a slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the upper 70s. Chance of rain 20 percent. Heat index values up to 110.
Sunday...Partly cloudy with a slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the upper 70s. Chance of rain 20 percent. Heat index values up to 110.
Monday...Partly cloudy with a slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the upper 70s. Chance of rain 20 percent. Heat index values up to 110.
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