St. Simons Isl, GA Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for St. Simons Isl, GA.

0 Currently Active Alerts for St. Simons Isl

✅
No active weather alerts for St. Simons Isl at this time.
Subscribe to receive instant notifications when alerts are issued.

Current Conditions — Saint Simons Isl, GA

BRUNSWICK (KSSI)

Clear

68.0 F
Humidity:%
Wind Speed: 4.7 mph
Barometer:30.12 in
Dewpoint: F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 23 2026, 01:15 AM EDT
Severe Weather Alerts
Severe Weather
 		Daily Weather Forecast
Daily Forecast
 		Observation Alert Monitoring
Observations
 		Storm Report Monitoring
Storm Reports

5-Day Forecast — Saint Simons Isl, GA

Thursday

High 80 °F
Partly Sunny
Thursday
Night
Low 62 °F
Mostly Clear
Friday

High 82 °F
Mostly Sunny
Friday
Night
Low 64 °F
Mostly Clear
Saturday

High 84 °F
Isolated T-storm
Saturday
Night
Low 64 °F
Isolated T-storm
Sunday

High 82 °F
Chance of T-storms
Sunday
Night
Low 66 °F
Chance of Showers
Monday

High 80 °F
Isolated T-storm

Detailed Forecast — Saint Simons Isl, GA

Thursday
Partly Sunny. High near 80°F. Wind 1 to 12 mph, with gusts as high as 17 mph.
Thursday Night
Mostly Clear. Low around 62°F. Wind 2 to 8 mph, with gusts as high as 13 mph.
Friday
Mostly Sunny. High near 82°F. Wind 2 to 10 mph, with gusts as high as 15 mph.
Friday Night
Mostly Clear. Low around 64°F. Wind 3 to 8 mph, with gusts as high as 14 mph.
Saturday
Isolated T-storm. High near 84°F. Wind 2 to 10 mph, with gusts as high as 15 mph.
Saturday Night
Isolated T-storm. Low around 64°F. Wind 5 to 9 mph, with gusts as high as 15 mph.
Sunday
Chance of Thunderstorms. High near 82°F. Wind 5 to 8 mph, with gusts as high as 10 mph.
Sunday Night
Chance of Showers. Low around 66°F. Wind 3 to 6 mph, with gusts as high as 9 mph.
Monday
Isolated T-storm. High near 80°F. Wind 8 to 13 mph, with gusts as high as 17 mph.
Monday Night
Partly Cloudy. Low around 66°F. Wind 6 to 8 mph, with gusts as high as 13 mph.
Tuesday
Isolated T-storm. High near 86°F. Wind 5 to 10 mph, with gusts as high as 14 mph.
Tuesday Night
Slight Chance of Rain Showers. Low around 66°F. Wind 6 to 8 mph, with gusts as high as 14 mph.
Wednesday
Isolated T-storm. High near 86°F. Wind 6 to 9 mph, with gusts as high as 13 mph.
GA Radar
Current Radar • GA
Day 1 Outlook • April 23, 2026

Observation History — Saint Simons Isl, GA

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
01:15 AM EDT 4.7 10.00 Clear -- 68.0 % NA NA 30.12 1020.0
12:55 AM EDT S 3.4 10.00 Clear -- 69.8 % NA NA 30.13 1020.3
12:15 AM EDT S 6.9 10.00 Clear -- 69.8 % NA NA 30.13 1020.3
11:55 PM EDT S 6.9 10.00 Clear -- 69.8 % NA NA 30.13 1020.3
11:35 PM EDT 8.1 10.00 Clear -- 69.8 % NA NA 30.14 1020.7
11:15 PM EDT 6.9 10.00 Clear -- 69.8 % NA NA 30.14 1020.7
10:55 PM EDT 8.1 10.00 Clear -- 69.8 % NA NA 30.14 1020.7
10:35 PM EDT 6.9 10.00 Clear -- 69.8 % NA NA 30.14 1020.7
10:10 PM EDT 5.8 10.00 Clear -- 71.6 % NA NA 30.14 1020.7
09:55 PM EDT 6.9 10.00 Clear -- 71.6 % NA NA 30.14 1020.7
09:35 PM EDT 9.2 10.00 Clear -- 71.6 % NA NA 30.13 1020.3
09:15 PM EDT 8.1 G 15.0 10.00 Clear -- 71.6 % NA NA 30.13 1020.3
08:55 PM EDT 9.2 G 15.0 10.00 Clear -- 71.6 % NA NA 30.13 1020.3
08:35 PM EDT 9.2 G 15.0 10.00 Clear -- 71.6 % NA NA 30.12 1020.0
07:55 PM EDT SE 10.3 10.00 Clear -- 71.6 % NA NA 30.12 1020.0
07:35 PM EDT SE 9.2 10.00 Clear -- 71.6 % NA NA 30.12 1020.0
07:15 PM EDT 6.9 G 13.9 10.00 Clear -- 71.6 % NA NA 30.12 1020.0
06:55 PM EDT SE 9.2 10.00 Clear -- 71.6 % NA NA 30.13 1020.3
06:35 PM EDT 9.2 10.00 Clear -- 73.4 % NA NA 30.13 1020.3
06:15 PM EDT SE 9.2 G 15.0 10.00 Clear -- 73.4 % NA NA 30.14 1020.7
05:55 PM EDT 10.3 10.00 Clear -- 75.2 % NA NA 30.14 1020.7
05:35 PM EDT SE 10.3 G 16.1 10.00 Clear -- 75.2 % NA NA 30.14 1020.7
05:15 PM EDT SE 11.4 10.00 Clear -- 75.2 % NA NA 30.14 1020.7
04:55 PM EDT SE 11.4 10.00 Clear -- 75.2 % NA NA 30.15 1021.0

Regional Weather Observation

BRUNSWICK (KSSI)

Clear
68.0 F

BRUNSWICK/GLYNCO (KBQK)

Clear
NULL F

JESUP/WAYNE CTY (KJES)

Clear
59.0 F

FT STEWART/WRIGH (KLHW)

Clear
61.0 F

FERNANDINA BEACH (KFHB)

Clear
68.0 F

WAYCROSS/WARE CO (KAYS)

Clear
60.3 F
🔔    Sign-up to receive daily weather forecasts by email or text - subscribe