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Penobscot Lake is a lake located in Maine. The water surface spans about 1,100 acres, making it a mid-sized body of water. The page brings together an hourly and 7-day forecast, wind and gust outlook, and activity scores for boating, paddling, and swimming. If you are planning a trip, Moosehead Lake and Flagstaff Lake are also nearby. Current weather, wind, and activity conditions for Penobscot Lake are updated throughout the day.
Updated
No active alerts for this lake as of the last check (Oct 9, 4:06 AM EDT). Alerts are re-checked automatically; see the official source for updates.
Overall Good (89/100) across 4 activities. Best right now: Boating (93/100).
How the score is calculated →Best good fishing window, averaging 87/100 across these hours. Wind 5 mph from the west. Dusk hours (19:00 local). Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 39° | 39° | 38° | 39° | 40° | 41° | 42° | 43° | 45° | 46° | 47° | 48° | 47° | 45° | 44° | 42° | 41° | 39° | 38° | 37° | 36° | 35° | 33° | 32° |
| Wind (kts) | 6 | 6 | 6 | 6 | 6 | 7 | 8 | 9 | 9 | 9 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 |
| Direction | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W | W |
| Gusts (kts) | 9 | 9 | 11 | 11 | 12 | 13 | 15 | 16 | 17 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 19 | 19 |
| Precip % | 6% | 7% | 15% | 24% | 32% | 32% | 31% | 31% | 31% | 31% | 32% | 32% | 33% | 31% | 29% | 18% | 6% | 5% | 3% | 1% | 1% | 1% | 1% | 1% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Fri, 4 AM EDT | 39°F | 7 mph W (270°) | 10 mph | 6% | 59% | Mostly Cloudy |
| Fri, 5 AM EDT | 39°F | 7 mph W (270°) | 10 mph | 7% | 66% | Mostly Cloudy |
| Fri, 6 AM EDT | 38°F | 7 mph W (270°) | 13 mph | 15% | 70% | Isolated Rain Showers |
| Fri, 7 AM EDT | 39°F | 7 mph W (270°) | 13 mph | 24% | 74% | Isolated Rain Showers |
| Fri, 8 AM EDT | 40°F | 7 mph W (270°) | 14 mph | 32% | 78% | Scattered Rain Showers |
| Fri, 9 AM EDT | 41°F | 8 mph W (270°) | 15 mph | 32% | 77% | Scattered Rain Showers |
| Fri, 10 AM EDT | 42°F | 9 mph W (270°) | 17 mph | 31% | 75% | Scattered Rain Showers |
| Fri, 11 AM EDT | 43°F | 10 mph W (270°) | 18 mph | 31% | 73% | Scattered Rain Showers |
| Fri, 12 PM EDT | 45°F | 10 mph W (270°) | 20 mph | 31% | 74% | Scattered Rain Showers |
| Fri, 1 PM EDT | 46°F | 10 mph W (270°) | 21 mph | 31% | 75% | Scattered Rain Showers |
| Fri, 2 PM EDT | 47°F | 12 mph W (270°) | 21 mph | 32% | 76% | Scattered Rain Showers |
| Fri, 3 PM EDT | 48°F | 10 mph W (270°) | 20 mph | 32% | 71% | Scattered Rain Showers |
| Fri, 4 PM EDT | 47°F | 10 mph W (270°) | 20 mph | 33% | 67% | Scattered Rain Showers |
| Fri, 5 PM EDT | 45°F | 10 mph W (270°) | 20 mph | 31% | 63% | Scattered Rain Showers |
| Fri, 6 PM EDT | 44°F | 10 mph W (270°) | 20 mph | 29% | 60% | Scattered Rain Showers |
| Fri, 7 PM EDT | 42°F | 10 mph W (270°) | 20 mph | 18% | 58% | Isolated Rain Showers |
| Fri, 8 PM EDT | 41°F | 10 mph W (270°) | 20 mph | 6% | 55% | Mostly Cloudy |
| Fri, 9 PM EDT | 39°F | 10 mph W (270°) | 20 mph | 5% | 48% | Partly Cloudy |
| Fri, 10 PM EDT | 38°F | 10 mph W (270°) | 20 mph | 3% | 40% | Partly Cloudy |
| Fri, 11 PM EDT | 37°F | 10 mph W (270°) | 20 mph | 1% | 32% | Partly Cloudy |
| Sat, 12 AM EDT | 36°F | 12 mph W (270°) | 21 mph | 1% | 28% | Patchy Frost |
| Sat, 1 AM EDT | 35°F | 12 mph W (270°) | 21 mph | 1% | 23% | Patchy Frost |
| Sat, 2 AM EDT | 33°F | 12 mph W (270°) | 22 mph | 1% | 19% | Areas Of Frost |
| Sat, 3 AM EDT | 32°F | 12 mph W (270°) | 22 mph | 1% | 18% | Areas Of Frost |
| Sat, 4 AM EDT | 31°F | 12 mph W (270°) | 22 mph | 1% | 17% | Areas Of Frost |
Official National Weather Service hourly forecast. Showing 10 of 25 hours. Wind arrows point the way the wind is blowing; the compass point and degrees show where it comes from.
| Period | Overnight October 9, 2026 | Friday October 9, 2026 | Friday Night October 9, 2026 | Saturday October 10, 2026 | Saturday Night October 10, 2026 | Sunday October 11, 2026 | Sunday Night October 11, 2026 | Columbus Day October 12, 2026 | Monday Night October 12, 2026 | Tuesday October 13, 2026 | Tuesday Night October 13, 2026 | Wednesday October 14, 2026 | Wednesday Night October 14, 2026 | Thursday October 15, 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 38° | 49° | 29° | 47° | 31° | 64° | 46° | 58° | 39° | 50° | 35° | 50° | 32° | 51° |
| Wind | W 7 mph | W 7 to 12 mph | W 12 mph | NW 8 to 12 mph | SW 2 to 7 mph | SW 3 to 8 mph | SW 9 mph | W 7 mph | NE 2 to 7 mph | SE 7 mph | NE 6 mph | NW 7 mph | NW 2 to 6 mph | W 5 mph |
| Gusts | 10 mph | 21 mph | 22 mph | 22 mph | 12 mph | 16 mph | 17 mph | 14 mph | 18 mph | 20 mph | 20 mph | 20 mph | 18 mph | 13 mph |
| Precip % | 7% | 33% | 29% | 0% | 0% | 0% | 8% | 20% | 76% | 76% | 73% | 26% | 11% | 10% |
| Forecast |
No active USGS or USACE telemetry gauge is currently mapped to Penobscot Lake. Not available from a verified source for this lake.
Good for fishing (85/100), from 5 available inputs. Supporting this: Wind 7 mph from the west. 6% chance of precipitation. Working against it: Air temperature 39°F. Not available from a verified source for this lake: pressure trend, water temperature. Confidence is moderate (74%) because some inputs are unavailable or older than ideal.
Excellent for boating (93/100), from 4 available inputs. Supporting this: Wind 7 mph from the west. Gusts to 10 mph. Not available from a verified source for this lake: visibility and conditions, verified water access. Confidence is moderate (84%) because some inputs are unavailable or older than ideal.
Excellent for sailing (90/100), from 4 available inputs. Supporting this: Wind 7 mph from the W is workable but not ideal. Gusts are within 3 mph of sustained wind, so the breeze is steady. Not available from a verified source for this lake: visibility. Confidence is high (88%).
Excellent for kayaking (90/100), from 5 available inputs. Supporting this: Wind 7 mph from the west. Gusts to 10 mph. Working against it: Air temperature 39°F. Confidence is high (90%).
Water temperature is not available from a verified source for this lake. No swimming score is shown without it.
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Individual boat ramp GPS coordinates are maintained under the jurisdiction of ME Parks & Wildlife Authority. Public boaters should verify seasonal launch water levels, gate hours, and daily vehicle/vessel fees before traveling.
Set against ME's varied geography, Penobscot Lake is a prime destination for outdoor enthusiasts seeking quality fishing and open-water boating. The lake provides access via public ramps and developed parklands around its perimeter. Follow all state watercraft registration and mandatory life jacket laws during your outing.
Valid freshwater sport fishing license issued by Maine Department of Inland Fisheries and Wildlife (MDIFW) is required for anglers age 16+. Digital license on mobile is accepted.
Current motorized watercraft registration mandatory. Practice Clean, Drain & Dry protocols: drain all livewells and inspect props before launching. Life jackets required for all passengers.
Public shoreline and boating access managed by State & Local Authorities. Verify seasonal gate hours, launch fees, and parking rules before travel.
High-speed motorboating, pontoon cruising, wakeboarding, and water skiing across main channels. Target gamefish include Northern Pike, Brook Trout, Muskellunge, Yellow Perch. Morning hours typically provide optimal glassy conditions for kayak and stand-up paddleboard (SUP) touring.
Warm water temperatures, peak swimming, active watersports, and open full-service campgrounds. Highest weekly attendance; plan early arrivals on summer weekends.
Spring pre-spawn and fall feeding transitions create prime trophy angling conditions. Cooler air, lower boat traffic, and vibrant seasonal shoreline foliage.
Northern cold winter conditions with freezing air temperatures and potential surface ice formation. Ramps and water systems may be winterized. Confirm open status before visiting.
No external source rows are cited by the data currently shown on this page.
Updated
Scores are heuristics, not safety guarantees. LakeRadar scores summarize available conditions and are not a substitute for official warnings, local rules, or on-water judgment.
All telemetry for Penobscot Lake is synchronized directly from authorized federal and state monitoring networks (USGS, NWS, NOAA, and state environmental authorities). Observations are strictly instrumented readings — unmonitored sensors are transparently disclosed rather than synthetic estimates.
Last source audit: Oct 9, 4:06 AM EDT