Prospect Harbor, ME Weather Forecast and Current Conditions
| Day | Sky | High / Low | Precip | Wind | Humidity | |
|---|---|---|---|---|---|---|
|
Fri Jul 17 |
 |
Mostly Clear Close Hourly |
-º / 54º | 4% | W 4 mph | 76% |
| 11pm |  |
Clear | 63º | 1% | W 3 mph | 65% |
|
Sat Jul 18 |
 |
PM Rain View Hourly |
67º / 62º | 61% | S 17 mph | 73% |
| 12am | |
Mostly Clear | 61º | 1% | W 3 mph | 69% |
| 1am |  |
Partly Cloudy | 60º | 1% | WNW 3 mph | 72% |
| 2am | |
Partly Cloudy | 58º | 2% | WNW 4 mph | 79% |
| 3am | |
Partly Cloudy | 57º | 2% | W 3 mph | 82% |
| 4am | |
Partly Cloudy | 55º | 2% | WNW 2 mph | 85% |
| 5am | |
Partly Cloudy | 55º | 2% | W 2 mph | 87% |
| 6am |  |
Mostly Cloudy | 56º | 4% | SW 2 mph | 88% |
| 7am | |
Mostly Cloudy | 61º | 3% | SSW 2 mph | 79% |
| 8am | |
Mostly Cloudy | 64º | 2% | SSW 4 mph | 73% |
| 9am | |
Mostly Cloudy | 67º | 1% | SSW 5 mph | 67% |
| 10am | |
Mostly Cloudy | 67º | 1% | S 7 mph | 64% |
| 11am | |
Mostly Cloudy | 66º | 2% | S 8 mph | 67% |
| 12pm | |
Mostly Cloudy | 66º | 3% | S 9 mph | 68% |
| 1pm |  |
Cloudy | 67º | 3% | S 9 mph | 67% |
| 2pm | |
Cloudy | 66º | 11% | S 11 mph | 73% |
| 3pm | |
Cloudy | 65º | 24% | S 11 mph | 80% |
| 4pm | |
Cloudy | 64º | 24% | S 12 mph | 83% |
| 5pm |  |
Showers | 65º | 37% | S 14 mph | 81% |
| 6pm | |
Rain | 65º | 61% | S 16 mph | 78% |
| 7pm | |
Rain | 64º | 76% | S 17 mph | 84% |
| 8pm | |
Rain | 63º | 80% | SSW 17 mph | 87% |
| 9pm |  |
Thunderstorms | 63º | 69% | S 18 mph | 91% |
| 10pm | |
Thunderstorms | 63º | 63% | SSW 18 mph | 93% |
| 11pm |  |
Scattered Thunderstorms | 63º | 54% | SSW 17 mph | 94% |
|
Sun Jul 19 |
 |
Mostly Sunny View Hourly |
75º / 56º | 20% | WNW 16 mph | 61% |
| 12am | |
Thunderstorms | 63º | 64% | SSW 16 mph | 97% |
| 1am | |
Light Rain | 64º | 60% | SSW 15 mph | 95% |
| 2am |  |
Foggy | 64º | 23% | SW 14 mph | 95% |
| 3am | |
Foggy | 65º | 22% | SW 12 mph | 94% |
| 4am | |
Foggy | 64º | 19% | SW 10 mph | 95% |
| 5am | |
Foggy | 64º | 24% | WSW 10 mph | 94% |
| 6am | |
Cloudy | 64º | 22% | WSW 10 mph | 94% |
| 7am |  |
Partly Cloudy | 65º | 21% | W 12 mph | 90% |
| 8am | |
Mostly Sunny | 65º | 4% | WNW 14 mph | 83% |
| 9am |  |
Sunny | 68º | 1% | WNW 15 mph | 72% |
| 10am | |
Sunny | 70º | 1% | WNW 16 mph | 65% |
| 11am | |
Sunny | 71º | 0% | WNW 16 mph | 60% |
| 12pm | |
Sunny | 72º | 0% | WNW 16 mph | 56% |
| 1pm | |
Partly Cloudy | 73º | 0% | WNW 16 mph | 52% |
| 2pm | |
Sunny | 74º | 0% | WNW 16 mph | 52% |
| 3pm | |
Sunny | 74º | 0% | WNW 15 mph | 50% |
| 4pm | |
Mostly Sunny | 73º | 0% | WNW 15 mph | 50% |
| 5pm | |
Sunny | 74º | 0% | WNW 14 mph | 48% |
| 6pm | |
Sunny | 72º | 0% | WNW 13 mph | 50% |
| 7pm | |
Sunny | 70º | 0% | WNW 12 mph | 53% |
| 8pm | |
Sunny | 68º | 0% | WNW 9 mph | 56% |
| 9pm | |
Clear | 66º | 0% | WNW 8 mph | 60% |
| 10pm | |
Clear | 64º | 0% | WNW 9 mph | 62% |
|
Mon Jul 20 |
|
Mostly Sunny | 72º / 57º | 1% | WSW 12 mph | 58% |
|
Tue Jul 21 |
|
Mostly Cloudy | 68º / 60º | 24% | SSE 13 mph | 76% |
|
Wed Jul 22 |
|
Rain | 69º / 59º | 84% | S 14 mph | 92% |
|
Thu Jul 23 |
 |
AM Showers | 72º / 57º | 41% | SW 10 mph | 77% |
|
Fri Jul 24 |
|
Mostly Sunny | 72º / 58º | 19% | SW 9 mph | 73% |
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Buoy Data
For Prospect Harbor, ME -
Wind Forecast
In Prospect Harbor, ME -
Radar
In Prospect Harbor, ME -
Marine Forecast
In Prospect Harbor, ME
Weather Radar for Prospect Harbor, ME See Radar
* Playback displays weather for the past 6 hours.
NOAA Weather Marine Forecast for Prospect Harbor, ME
Variable winds 5 kt or less. Partly cloudy. Seas around 2 ft.
Variable winds less than 5 kt becoming S 8 to 13 kt in the morning. Winds could gust as high as 19 kt. Isolated showers after 5pm. Patchy smoke after 3pm. Seas 1 to 2 ft.
SSW wind 15 to 19 kt, with gusts as high as 26 kt. Scattered showers and thunderstorms. Patchy smoke. Seas 5 to 6 ft.
W wind 12 to 15 kt. Isolated showers before 7am. Seas 3 to 4 ft.
W wind around 9 kt. Mostly clear. Seas 2 to 3 ft.
W wind 7 to 11 kt becoming SW in the afternoon. Sunny. Seas 2 to 3 ft.
SW wind 6 to 9 kt. Partly cloudy. Seas 2 to 3 ft.
S wind 8 to 11 kt. A slight chance of showers. Seas 2 to 3 ft.
SSE wind 12 to 14 kt, with gusts as high as 20 kt. Showers likely, with thunderstorms also possible after 2am. Seas 3 to 4 ft.
NOAA Buoy Data Near Prospect Harbor, ME See Map
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Wind Speed Forecast for Prospect Harbor, ME
| Saturday | Sunday | |||||||||||
| Wind Speed (MPH) | 3 | 3 | 2 | 8 | 11 | 17 | 17 | 12 | 12 | 16 | 15 | 12 |
| 3am | 7am | 11am | 3pm | 7pm | 11pm | 3am | 7am | 11am | 3pm | 7pm | 11pm | |
| MPH | 3 | 3 | 2 | 8 | 11 | 17 | 17 | 12 | 12 | 16 | 15 | 12 |
| DIR | W | W | SSW | S | S | S | SSW | SW | W | WNW | WNW | WNW |
Current Weather Conditions In Prospect Harbor, ME
As Of: 43 minutes ago
- 63ºF
- 63ºF
- 3mph
- 0º (W)
- 3mph
- Clear
- 10mi
- 29.96"
- 65%
- 0ºF
The weather right now in Prospect Harbor, ME is Clear. The current temperature is 63°F, and the expected high and low for today, Friday, July 17, 2026, are -° high temperature and 54°F low temperature. The wind is currently blowing at 3 miles per hour, and coming from the West. The wind is gusting to 3 mph. With the wind and the atmosphere the temperature feels like 63° Fahrenheit. Expected precipitation is 1 percent, with current humidity at 65 percent, and air pressure at 29.96 in. Visibility is 10 nautical miles. There are 2 current weather alert(s).
...AIR QUALITY ALERT IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT EDT SATURDAY NIGHT...
The Maine Department of Environmental Protection's Bureau of Air
Quality has issued an Air Quality Alert for particle pollution from
10 AM Saturday to midnight EDT Saturday night.
Particle pollution levels are expected to rise into the Unhealthy for
Sensitive Groups range during the day on Saturday. Smoke from
wildfires in western Ontario and Manitoba is expected to move back
into Maine during the day on Saturday. Moderate levels of ozone are
also expected for the Mid-Coast including the high elevations of
Acadia National Park.
The Maine Department of Environmental Protection recommends that
individuals consider limiting strenuous outdoor physical activity to
reduce the risk of adverse health effects. People who may be
especially sensitive to the effects of elevated levels of pollutants
include the very young, older adults, those who work outdoors, those
with pre-existing respiratory problems such as asthma, and those
with heart disease. It is okay to be active outdoors. But if you
experience symptoms such as shortness of breath, coughing, throat
irritation or an uncomfortable sensation in your chest, please
consider limiting the intensity and duration of your outdoor
activities.
A toll free air quality hotline has been established so Maine
residents can stay informed on the air quality situations. The toll
free number is: 1-800-223-1196.
Additionally the Maine Department of Environmental Protection has
the air quality forecast available on the web at
www.maine.gov/dep/air/aqforecast.
...SMALL CRAFT ADVISORY IN EFFECT FROM 3 PM SATURDAY TO 2 PM EDT SUNDAY...
WHAT: Southwest winds 15 to 25 kt with gusts up to 30 kt and
seas 5 to 9 ft expected.
WHERE: Coastal Waters from Eastport, ME to Schoodic Point, ME
out 25 NM, Coastal Waters from Schoodic Point, ME to
Stonington, ME out 25 NM and Intra Coastal Waters from
Schoodic Point, ME to Stonington, ME.
WHEN: From 3 PM Saturday to 2 PM EDT Sunday.
IMPACTS: Conditions will be hazardous to small craft.
PRECAUTIONARY / PREPAREDNESS ACTIONS:
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
