Castine, ME Weather Forecast
Local 7-day forecast
Patchy Fog then Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Castine, ME in one place.
Patchy fog before 8am. Partly sunny, with a high near 53. East wind 3 to 7 mph.
Local Weather Overview
This forecast page for Castine, 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 16, 2026 1:02 AM EDT.
The active forecast window currently covers Apr 18 to Apr 22, 2026 for Castine, ME.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 18 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 1:02 AM EDT
- Forecast office
- CAR
- Source
- NOAA / NWS
Daily Outlook
This Week in Castine
Saturday looks like the warmest upcoming period in Castine at 53 degrees F.
Monday Night is the coolest period ahead with temperatures near 27 degrees F.
The strongest winds are forecast for Monday at about 7 to 10 mph NW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 1:02 AM EDT
- Coverage
- 5 days
- Time zone
- America/New_York
- Forecast office
- CAR
- 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 after 9pm. Mostly cloudy, with a low around 39. Southeast wind around 5 mph. Chance of precipitation is 40%.
Rain likely. Cloudy, with a high near 50. Chance of precipitation is 70%.
Rain likely before 5am, then a chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 70%.
A chance of rain and snow. Partly sunny, with a high near 45. Chance of precipitation is 30%.
A slight chance of snow before 7pm. Partly cloudy, with a low around 27. Chance of precipitation is 20%.
Sunny, with a high near 46.
A chance of rain after 11pm. Partly cloudy, with a low around 35. Chance of precipitation is 30%.
A chance of rain. Partly sunny, with a high near 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 18
|
Patchy Fog then Partly Sunny
|
53°F |
3 to 7 mph
E
|
|
Saturday Night
Apr 18
|
Chance Light Rain
|
39°F |
5 mph
SE
|
|
Sunday
Apr 19
|
Light Rain Likely
|
50°F |
3 to 8 mph
SW
|
|
Sunday Night
Apr 19
|
Light Rain Likely then Chance Rain And Snow
|
33°F |
7 mph
W
|
|
Monday
Apr 20
|
Chance Rain And Snow
|
45°F |
7 to 10 mph
NW
|
|
Monday Night
Apr 20
|
Slight Chance Light Snow then Partly Cloudy
|
27°F |
7 mph
NW
|
|
Tuesday
Apr 21
|
Sunny
|
46°F |
5 to 10 mph
W
|
|
Tuesday Night
Apr 21
|
Chance Light Rain
|
35°F |
7 mph
SW
|
|
Wednesday
Apr 22
|
Chance Light Rain
|
53°F |
6 to 9 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Castine.
