St. Marys, GA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for St. Marys, GA in one place.
Sunny. High near 84, with temperatures falling to around 81 in the afternoon. Southeast wind around 12 mph.
Local Weather Overview
This forecast page for St. Marys, GA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 15, 2026 6:05 PM EDT.
The active forecast window currently covers Apr 15 to Apr 21, 2026 for St. Marys, GA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 6:05 PM EDT
- Forecast office
- JAX
- Source
- NOAA / NWS
Daily Outlook
This Week in St. Marys
Saturday looks like the warmest upcoming period in St. Marys at 90 degrees F.
Tonight is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Monday at about 15 mph NE.
The forecast from Apr 15 through Apr 21 stays mostly dry.
Forecast Details
- Last updated
- Apr 15, 2026 6:05 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- JAX
- Radar station
- KJAX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear. Low around 59, with temperatures rising to around 61 overnight. South wind 2 to 10 mph.
Sunny. High near 86, with temperatures falling to around 84 in the afternoon. South wind 2 to 9 mph.
Mostly clear. Low around 62, with temperatures rising to around 64 overnight. South wind 3 to 9 mph.
Sunny. High near 89, with temperatures falling to around 87 in the afternoon. Southwest wind 2 to 7 mph.
Mostly clear, with a low around 63.
Mostly sunny, with a high near 90.
Mostly cloudy, with a low around 65.
Partly sunny, with a high near 88.
Mostly cloudy, with a low around 60.
Mostly sunny, with a high near 71.
Partly cloudy, with a low around 59.
Mostly sunny, with a high near 75.
Mostly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Apr 15
|
Sunny
|
84°F |
12 mph
SE
|
|
Tonight
Apr 15
|
Mostly Clear
|
59°F |
2 to 10 mph
S
|
|
Thursday
Apr 16
|
Sunny
|
86°F |
2 to 9 mph
S
|
|
Thursday Night
Apr 16
|
Mostly Clear
|
62°F |
3 to 9 mph
S
|
|
Friday
Apr 17
|
Sunny
|
89°F |
2 to 7 mph
SW
|
|
Friday Night
Apr 17
|
Mostly Clear
|
63°F |
3 to 7 mph
S
|
|
Saturday
Apr 18
|
Mostly Sunny
|
90°F |
2 to 9 mph
S
|
|
Saturday Night
Apr 18
|
Mostly Cloudy
|
65°F |
3 to 9 mph
S
|
|
Sunday
Apr 19
|
Partly Sunny
|
88°F |
3 to 10 mph
W
|
|
Sunday Night
Apr 19
|
Mostly Cloudy
|
60°F |
8 to 12 mph
N
|
|
Monday
Apr 20
|
Mostly Sunny
|
71°F |
15 mph
NE
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
59°F |
7 to 14 mph
NE
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
75°F |
8 to 14 mph
E
|
|
Tuesday Night
Apr 21
|
Mostly Cloudy
|
60°F |
5 to 10 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around St. Marys.