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Greenwood Reservoir is one of the reservoirs LakeRadar tracks in Michigan. Its recorded surface area is approximately 1,073 acres. Fish documented in the area include Smallmouth Bass, Black Crappie, Brook Trout, and Rock Bass. It reaches a maximum depth of roughly 57 feet at an elevation of about 620 feet. Coverage here includes an hourly and 7-day forecast, wind and gust outlook, water readings, fishing conditions, and activity scores for boating, paddling, and swimming. Other waters in the region include Gibson Lake and Lake Superior — MI Shore. LakeRadar pulls readings from a mapped water gauge, so current water data is shown when the station reports. Forecasts for Greenwood Reservoir come from the National Weather Service and refresh several times a day.
Updated
No active alerts for this lake as of the last check (Oct 9, 5:52 AM EDT). Alerts are re-checked automatically; see the official source for updates.
Overall Good (82/100) across 5 activities. Best right now: Boating (97/100). Includes an estimated (not verified) swimming outlook.
How the score is calculated →Best excellent fishing window, averaging 91/100 across these hours. Wind 5 mph from the southeast. Dusk hours (18:00 local). Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 35° | 34° | 33° | 33° | 36° | 46° | 51° | 55° | 59° | 61° | 62° | 62° | 61° | 59° | 56° | 47° | 44° | 43° | 42° | 42° | 42° | 42° | 43° | 45° |
| Wind (kts) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 9 | 9 | 9 | 9 | 9 |
| Direction | — | — | — | — | — | — | — | NW | NW | N | SE | SE | E | SE | E | SE | SE | SE | SE | SE | S | SE | SE | SE |
| Gusts (kts) | 10 | 9 | 9 | 8 | 8 | 7 | 6 | 6 | 6 | 6 | 7 | 8 | 9 | 10 | 11 | 11 | 11 | 12 | 13 | 14 | 14 | 15 | 16 | 17 |
| Precip % | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 1% | 1% | 1% | 1% | 1% | 3% | 3% | 3% | 3% | 2% | 2% | 2% | 2% | 2% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Fri, 5 AM EDT | 35°F | Calm | 12 mph | 0% | 21% | Mostly Clear |
| Fri, 6 AM EDT | 34°F | Calm | 10 mph | 0% | 28% | Mostly Sunny |
| Fri, 7 AM EDT | 33°F | Calm | 10 mph | 0% | 40% | Mostly Sunny |
| Fri, 8 AM EDT | 33°F | Calm | 9 mph | 0% | 33% | Mostly Sunny |
| Fri, 9 AM EDT | 36°F | Calm | 9 mph | 0% | 21% | Sunny |
| Fri, 10 AM EDT | 46°F | Calm | 8 mph | 0% | 19% | Sunny |
| Fri, 11 AM EDT | 51°F | Calm | 7 mph | 0% | 18% | Sunny |
| Fri, 12 PM EDT | 55°F | 5 mph NW (315°) | 7 mph | 0% | 12% | Sunny |
| Fri, 1 PM EDT | 59°F | 5 mph NW (315°) | 7 mph | 0% | 11% | Sunny |
| Fri, 2 PM EDT | 61°F | 5 mph N (0°) | 7 mph | 0% | 13% | Sunny |
| Fri, 3 PM EDT | 62°F | 5 mph SE (135°) | 8 mph | 1% | 17% | Sunny |
| Fri, 4 PM EDT | 62°F | 5 mph SE (135°) | 9 mph | 1% | 10% | Sunny |
| Fri, 5 PM EDT | 61°F | 5 mph E (90°) | 10 mph | 1% | 7% | Sunny |
| Fri, 6 PM EDT | 59°F | 5 mph SE (135°) | 12 mph | 1% | 2% | Clear |
| Fri, 7 PM EDT | 56°F | 5 mph E (90°) | 13 mph | 1% | 8% | Mostly Clear |
| Fri, 8 PM EDT | 47°F | 5 mph SE (135°) | 13 mph | 3% | 6% | Mostly Clear |
| Fri, 9 PM EDT | 44°F | 5 mph SE (135°) | 13 mph | 3% | 5% | Clear |
| Fri, 10 PM EDT | 43°F | 5 mph SE (135°) | 14 mph | 3% | 9% | Mostly Clear |
| Fri, 11 PM EDT | 42°F | 5 mph SE (135°) | 15 mph | 3% | 4% | Clear |
| Sat, 12 AM EDT | 42°F | 10 mph SE (135°) | 16 mph | 2% | 11% | Mostly Clear |
| Sat, 1 AM EDT | 42°F | 10 mph S (180°) | 16 mph | 2% | 9% | Mostly Clear |
| Sat, 2 AM EDT | 42°F | 10 mph SE (135°) | 17 mph | 2% | 17% | Mostly Clear |
| Sat, 3 AM EDT | 43°F | 10 mph SE (135°) | 18 mph | 2% | 34% | Partly Cloudy |
| Sat, 4 AM EDT | 45°F | 10 mph SE (135°) | 20 mph | 2% | 45% | Partly Cloudy |
| Sat, 5 AM EDT | 46°F | 10 mph S (180°) | 20 mph | 2% | 50% | Partly Cloudy |
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) | 33° | 62° | 41° | 78° | 57° | 80° | 52° | 66° | 39° | 52° | 33° | 56° | 37° | 58° |
| Wind | 0 mph | NW 0 to 5 mph | SE 5 to 10 mph | S 10 to 15 mph | S 15 mph | SW 10 to 15 mph | SW 5 to 10 mph | NW 5 to 10 mph | N 5 to 10 mph | N 5 to 10 mph | N 0 to 5 mph | SE 0 to 10 mph | SE 5 to 10 mph | S 10 to 15 mph |
| Gusts | 12 mph | 10 mph | 20 mph | 30 mph | 30 mph | 23 mph | 20 mph | 21 mph | 22 mph | 21 mph | 14 mph | 14 mph | 23 mph | 30 mph |
| Precip % | 0% | 1% | 3% | 2% | 0% | 0% | 9% | 35% | 46% | 35% | 6% | 15% | 40% | 56% |
| Forecast |
Good for fishing (84/100), from 5 available inputs. Supporting this: Wind 0 mph from the northwest. 0% chance of precipitation. Working against it: Air temperature 35°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 (97/100), from 4 available inputs. Supporting this: Wind 0 mph from the northwest. No active official alerts for this lake. 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.
Poor for sailing (54/100), from 4 available inputs. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Working against it: Wind 0 mph is light; expect limited sailing. Not available from a verified source for this lake: visibility. Confidence is high (88%).
Excellent for kayaking (93/100), from 5 available inputs. Supporting this: Wind 0 mph from the northwest. Gusts to 12 mph. Working against it: Air temperature 35°F. Confidence is high (90%).
This swimming outlook uses a MODELLED water temperature, not a verified sensor reading. Treat it as a rough guide, not a measurement, especially for cold-shock risk.
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Individual boat ramp GPS coordinates are maintained under the jurisdiction of MI Parks & Wildlife Authority. Public boaters should verify seasonal launch water levels, gate hours, and daily vehicle/vessel fees before traveling.
Greenwood Reservoir serves as a key recreational and ecological freshwater reservoir in MI, overseen by state and local natural resource agencies. The waterbody supports active boating, angling, and shoreline access throughout the open season. Visitors are encouraged to verify current launch conditions, water levels, and local regulations before heading out onto the water.
Valid freshwater sport fishing license issued by Michigan Department of Natural Resources (MDNR) is required for anglers age 17+. 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 Smallmouth Bass, Black Crappie, Brook Trout, Rock Bass. 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.
NWS API Web Service · License: U.S. Government work · Attribution: Data provided by the National Weather Service (api.weather.gov)
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 Greenwood Reservoir 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, 5:52 AM EDT