South Thomaston, ME Weather Forecast
Local 7-day forecast
Rain Showers Likely then Areas Of Fog
Track current conditions, temperature changes, wind, and the full daily outlook for South Thomaston, ME in one place.
Rain showers likely and areas of fog before 7am, then areas of fog and a chance of rain showers between 7am and 10am, then rain showers likely and areas of fog between 10am and noon, then areas of fog and a chance of rain showers. Cloudy, with a high near 44. East wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for South Thomaston, ME 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 4:22 PM EDT.
The active forecast window currently covers Apr 16 to Apr 21, 2026 for South Thomaston, ME.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 16 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 4:22 PM EDT
- Forecast office
- GYX
- Source
- NOAA / NWS
Daily Outlook
This Week in South Thomaston
Friday looks like the warmest upcoming period in South Thomaston at 49 degrees F.
Monday Night is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Monday at about 15 to 20 mph W.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 4:22 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- GYX
- Radar station
- KGYX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers before 8pm, then showers and thunderstorms. Cloudy, with a low around 41. East wind 0 to 5 mph. Chance of precipitation is 70%.
Rain showers likely. Mostly cloudy, with a high near 49. Northeast wind 5 to 10 mph. Chance of precipitation is 70%.
A chance of rain showers. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.
A slight chance of rain showers. Mostly cloudy, with a high near 46.
A chance of rain showers. Cloudy, with a low around 41. Chance of precipitation is 30%.
Rain showers likely. Cloudy, with a high near 47. Chance of precipitation is 60%.
Rain showers likely. Mostly cloudy, with a low around 38. Chance of precipitation is 60%.
A chance of rain showers. Partly sunny, with a high near 43. Chance of precipitation is 50%.
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 31.
Sunny, with a high near 43.
A slight chance of rain showers after 2am. Partly cloudy, with a low around 39.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 16
|
Rain Showers Likely then Areas Of Fog
|
44°F |
5 mph
E
|
|
Thursday Night
Apr 16
|
Showers And Thunderstorms
|
41°F |
0 to 5 mph
E
|
|
Friday
Apr 17
|
Rain Showers Likely
|
49°F |
5 to 10 mph
NE
|
|
Friday Night
Apr 17
|
Chance Rain Showers
|
42°F |
5 mph
NE
|
|
Saturday
Apr 18
|
Slight Chance Rain Showers
|
46°F |
10 mph
E
|
|
Saturday Night
Apr 18
|
Chance Rain Showers
|
41°F |
5 mph
SE
|
|
Sunday
Apr 19
|
Rain Showers Likely
|
47°F |
10 mph
S
|
|
Sunday Night
Apr 19
|
Rain Showers Likely
|
38°F |
10 to 15 mph
SW
|
|
Monday
Apr 20
|
Chance Rain Showers
|
43°F |
15 to 20 mph
W
|
|
Monday Night
Apr 20
|
Slight Chance Rain Showers then Partly Cloudy
|
31°F |
15 mph
NW
|
|
Tuesday
Apr 21
|
Sunny
|
43°F |
15 mph
W
|
|
Tuesday Night
Apr 21
|
Partly Cloudy then Slight Chance Rain Showers
|
39°F |
10 to 15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Thomaston.