Castine, ME Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Thu
Aug 6
Sunny
Close Hourly
82º / 64º 2% SSW 9 mph 62%
9am Sunny 75º 1% WNW 2 mph 74%
10am Sunny 78º 1% S 3 mph 66%
11am Sunny 81º 1% SSW 5 mph 60%
12pm Sunny 81º 1% S 6 mph 57%
1pm Sunny 82º 0% SSW 7 mph 55%
2pm Sunny 81º 1% SSW 8 mph 57%
3pm Sunny 81º 1% SSW 9 mph 59%
4pm Sunny 80º 1% SSW 8 mph 59%
5pm Sunny 79º 1% SSW 8 mph 60%
6pm Sunny 78º 2% SSW 8 mph 63%
7pm Mostly Sunny 75º 4% SSW 7 mph 70%
8pm Clear 72º 6% SSW 6 mph 77%
9pm Clear 70º 7% SSW 4 mph 83%
10pm Partly Cloudy 69º 7% SSW 3 mph 85%
11pm Mostly Clear 68º 7% SSW 2 mph 90%
Fri
Aug 7
Partly Cloudy
View Hourly
84º / 64º 22% S 8 mph 71%
12am Partly Cloudy 68º 8% SW 1 mph 90%
1am Partly Cloudy 67º 11% SSW 1 mph 94%
2am Partly Cloudy 66º 19% S 0 mph 96%
3am Partly Cloudy 66º 14% SSE 0 mph 97%
4am Cloudy 66º 24% SE 0 mph 98%
5am Cloudy 65º 23% SSE 0 mph 100%
6am Foggy 65º 23% SSE 0 mph 100%
7am Mostly Cloudy 69º 22% SE 0 mph 92%
8am Partly Cloudy 73º 7% N 1 mph 83%
9am Partly Cloudy 76º 6% N 2 mph 77%
10am Partly Cloudy 79º 4% SSE 3 mph 70%
11am Partly Cloudy 81º 4% S 4 mph 67%
12pm Mostly Sunny 82º 2% S 5 mph 64%
1pm Mostly Sunny 83º 2% SSW 6 mph 63%
2pm Partly Cloudy 83º 15% SSW 7 mph 63%
3pm Partly Cloudy 82º 15% SSW 8 mph 65%
4pm Partly Cloudy 81º 15% SSW 7 mph 66%
5pm Partly Cloudy 80º 15% SSW 7 mph 69%
6pm Partly Cloudy 78º 15% SSW 6 mph 73%
7pm Partly Cloudy 76º 15% SSW 5 mph 76%
8pm Partly Cloudy 73º 15% SSW 4 mph 80%
9pm Mostly Cloudy 72º 15% SSW 3 mph 85%
10pm Mostly Cloudy 70º 15% SSW 3 mph 89%
11pm Partly Cloudy 69º 8% SSW 2 mph 92%
Sat
Aug 8
Showers
View Hourly
77º / 64º 37% SSE 8 mph 84%
12am Partly Cloudy 69º 8% WSW 1 mph 94%
1am Mostly Cloudy 68º 8% SW 1 mph 95%
2am Mostly Cloudy 67º 11% SW 1 mph 97%
3am Few Showers 67º 34% SW 0 mph 98%
4am Showers 66º 40% WNW 1 mph 100%
5am Few Showers 66º 32% ESE 1 mph 100%
6am Cloudy 65º 24% SSE 1 mph 100%
7am Cloudy 68º 19% SSE 1 mph 97%
8am Cloudy 71º 22% S 2 mph 90%
Sun
Aug 9
PM Thunderstorms 81º / 63º 40% SW 10 mph 76%
Mon
Aug 10
Mostly Sunny 82º / 63º 18% WSW 12 mph 58%
Tue
Aug 11
Showers 77º / 62º 44% SW 8 mph 70%
Wed
Aug 12
Partly Cloudy 79º / 60º 14% W 9 mph 63%
Thu
Aug 13
Partly Cloudy 76º / 61º 24% SW 11 mph 67%

Weather Radar for Castine, ME See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Castine, ME

Today
High : 79ºF
Variable winds 5 kt or less. Patchy fog before 8am. Seas 1 ft or less.
Tonight
Low : 64ºF
Variable winds 5 kt or less. Patchy fog after 4am. Seas 1 ft or less.
Friday
High : 79ºF
Variable winds 5 kt or less. Patchy fog before 7am. Seas 1 ft or less.
Friday Night
Low : 64ºF
Variable winds 5 kt or less. A chance of showers after 3am. Patchy fog after midnight. Seas 1 ft or less.
Saturday
High : 75ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms, then showers likely after 5pm. Patchy fog before 9am. Seas 1 ft or less.
Saturday Night
Low : 64ºF
Variable winds 5 kt or less. A chance of showers before 8pm. Seas 1 ft or less.
Sunday
High : 77ºF
Variable winds less than 5 kt becoming SSW 5 to 10 kt in the afternoon. Mostly sunny. Seas 1 ft or less.
Sunday Night
Low : 63ºF
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Monday
High : 79ºF
W wind 5 to 8 kt becoming SSW 7 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

NOAA Buoy Data Near Castine, ME See Map

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    Wind Speed Forecast for Castine, ME

    ThursdayFridaySaturday
    Wind Speed (MPH) 278410267311
    1pm5pm9pm1am5am9am1pm5pm9pm1am5am9am
    MPH 278410267311
    DIR WNWSSWSSWSSWSSWSSENSSWSSWSSWSWESE

    Current Weather Conditions In Castine, ME

    As Of: 7 minutes ago

    • 75ºF
    • 75ºF
    • 2mph
    • 0º (WNW)
    • 2mph
    • Sunny
    • 9mi
    • 30.07"
    • 74%
    • 0ºF

    The weather right now in Castine, ME is Sunny. The current temperature is 75°F, and the expected high and low for today, Thursday, August 6, 2026, are 82° high temperature and 64°F low temperature. The wind is currently blowing at 2 miles per hour, and coming from the West Northwest. The wind is gusting to 2 mph. With the wind and the atmosphere the temperature feels like 75° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 74 percent, and air pressure at 30.07 in. Visibility is 9 nautical miles. There are no current weather alert(s).