Islesboro, ME Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Islesboro, ME in one place.
Mostly cloudy, with a high near 47. East wind around 9 mph.
Local Weather Overview
This forecast page for Islesboro, 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 12:41 AM EDT.
The active forecast window currently covers Apr 18 to Apr 22, 2026 for Islesboro, ME.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 18 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 12:41 AM EDT
- Forecast office
- GYX
- Source
- NOAA / NWS
Daily Outlook
This Week in Islesboro
Wednesday looks like the warmest upcoming period in Islesboro at 48 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 mph NW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 12:41 AM EDT
- Coverage
- 5 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 after 8pm. Mostly cloudy, with a low around 42. Southeast wind around 7 mph. Chance of precipitation is 40%.
Rain showers likely. Cloudy, with a high near 46. Chance of precipitation is 70%.
Rain showers likely before 5am, then a chance of rain and snow showers. Mostly cloudy, with a low around 37. Chance of precipitation is 70%.
A chance of rain and snow showers. Partly sunny, with a high near 42. Chance of precipitation is 30%.
A slight chance of rain and snow showers before 7pm. Partly cloudy, with a low around 31. Chance of precipitation is 20%.
Sunny, with a high near 42.
A chance of rain showers after 10pm. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
A chance of rain showers. Partly sunny, with a high near 48.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 18
|
Mostly Cloudy
|
47°F |
9 mph
E
|
|
Saturday Night
Apr 18
|
Chance Rain Showers
|
42°F |
7 mph
SE
|
|
Sunday
Apr 19
|
Rain Showers Likely
|
46°F |
8 to 12 mph
S
|
|
Sunday Night
Apr 19
|
Rain Showers Likely then Chance Rain And Snow Showers
|
37°F |
10 to 14 mph
W
|
|
Monday
Apr 20
|
Chance Rain And Snow Showers
|
42°F |
15 mph
NW
|
|
Monday Night
Apr 20
|
Slight Chance Rain And Snow Showers then Partly Cloudy
|
31°F |
13 mph
NW
|
|
Tuesday
Apr 21
|
Sunny
|
42°F |
14 mph
W
|
|
Tuesday Night
Apr 21
|
Chance Rain Showers
|
38°F |
9 to 13 mph
SW
|
|
Wednesday
Apr 22
|
Chance Rain Showers
|
48°F |
12 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Islesboro.
