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Lake St. Clair sits in Michigan and is classified as a lake. The water surface spans about 275,200 acres, making it a very large body of water. Other waters in the region include Cass Lake. Coverage here includes an hourly and 7-day forecast, wind and gust outlook, and activity scores for boating, paddling, and swimming. Forecasts for Lake St. Clair 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, 4:50 PM EDT). Alerts are re-checked automatically; see the official source for updates.
Best good fishing window, averaging 88/100 across these hours. Measured water temperature 59°F from a representative gauge 27.1 mi away. Provisional data. Wind 7 mph from the south-southeast. Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 63° | 63° | 63° | 63° | 62° | 62° | 59° | 58° | 58° | 58° | 60° | 61° | 60° | 60° | 60° | 60° | 60° | 59° | 60° | 61° | 62° | 62° | 63° | 63° |
| Wind (kts) | 6 | 8 | 8 | 6 | 9 | 8 | 10 | 12 | 11 | 12 | 14 | 15 | 14 | 13 | 12 | 13 | 15 | 14 | 14 | 11 | 10 | 10 | 12 | 10 |
| Direction | S | S | S | S | SE | S | E | E | E | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE |
| Gusts (kts) | 11 | 9 | 8 | 6 | 10 | 10 | 11 | 12 | 13 | 14 | 18 | 19 | 17 | 17 | 16 | 15 | 18 | 17 | 19 | 19 | 17 | 17 | 17 | 17 |
| Precip % | 0% | 0% | 1% | 1% | 1% | 1% | 1% | 1% | 1% | 1% | 1% | 1% | 1% | 2% | 2% | 2% | 2% | 2% | 2% | 1% | 1% | 1% | 1% | 1% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Fri, 4 PM EDT | 63°F | 7 mph S (173°) | 13 mph | 0% | 84% | Overcast |
| Fri, 5 PM EDT | 63°F | 9 mph S (189°) | 10 mph | 0% | 93% | Overcast |
| Fri, 6 PM EDT | 63°F | 9 mph S (175°) | 9 mph | 1% | 7% | Clear Sky |
| Fri, 7 PM EDT | 63°F | 7 mph SSE (159°) | 7 mph | 1% | 0% | Clear Sky |
| Fri, 8 PM EDT | 62°F | 10 mph SSE (147°) | 11 mph | 1% | 1% | Clear Sky |
| Fri, 9 PM EDT | 62°F | 9 mph SSE (160°) | 11 mph | 1% | 0% | Clear Sky |
| Fri, 10 PM EDT | 59°F | 12 mph ENE (75°) | 13 mph | 1% | 0% | Clear Sky |
| Fri, 11 PM EDT | 58°F | 14 mph ESE (105°) | 14 mph | 1% | 0% | Clear Sky |
| Sat, 12 AM EDT | 58°F | 13 mph ESE (110°) | 15 mph | 1% | 0% | Clear Sky |
| Sat, 1 AM EDT | 58°F | 14 mph ESE (123°) | 16 mph | 1% | 0% | Clear Sky |
| Sat, 2 AM EDT | 60°F | 16 mph SE (140°) | 21 mph | 1% | 0% | Clear Sky |
| Sat, 3 AM EDT | 61°F | 17 mph SE (142°) | 22 mph | 1% | 0% | Clear Sky |
| Sat, 4 AM EDT | 60°F | 16 mph SSE (149°) | 20 mph | 1% | 9% | Clear Sky |
| Sat, 5 AM EDT | 60°F | 15 mph SE (146°) | 20 mph | 2% | 86% | Overcast |
| Sat, 6 AM EDT | 60°F | 14 mph SE (137°) | 18 mph | 2% | 100% | Overcast |
| Sat, 7 AM EDT | 60°F | 15 mph SE (134°) | 17 mph | 2% | 100% | Overcast |
| Sat, 8 AM EDT | 60°F | 17 mph SE (134°) | 21 mph | 2% | 100% | Overcast |
| Sat, 9 AM EDT | 59°F | 16 mph SE (131°) | 20 mph | 2% | 100% | Overcast |
| Sat, 10 AM EDT | 60°F | 16 mph SE (128°) | 22 mph | 2% | 100% | Overcast |
| Sat, 11 AM EDT | 61°F | 13 mph SE (133°) | 22 mph | 1% | 100% | Overcast |
| Sat, 12 PM EDT | 62°F | 11 mph SE (131°) | 19 mph | 1% | 100% | Overcast |
| Sat, 1 PM EDT | 62°F | 11 mph SE (124°) | 19 mph | 1% | 100% | Overcast |
| Sat, 2 PM EDT | 63°F | 14 mph SE (131°) | 20 mph | 1% | 100% | Overcast |
| Sat, 3 PM EDT | 63°F | 12 mph SE (127°) | 20 mph | 1% | 99% | Overcast |
| Sat, 4 PM EDT | 64°F | 12 mph ESE (122°) | 19 mph | 1% | 100% | Overcast |
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 | Today October 9, 2026 | Tonight October 9, 2026 | Saturday October 10, 2026 | Saturday Night October 10, 2026 | Sunday October 11, 2026 | Sunday Night October 11, 2026 | Monday 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 | Thursday Night October 15, 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 63° | 54° | 64° | 58° | 63° | 57° | 68° | 57° | 65° | 51° | 53° | 49° | 55° | 49° |
| Wind | 16 mph | 13 mph | 17 mph | 13 mph | 20 mph | 16 mph | 15 mph | 12 mph | 23 mph | 19 mph | 22 mph | 18 mph | 24 mph | 19 mph |
| Gusts | 20 mph | 20 mph | 26 mph | 26 mph | 26 mph | 26 mph | 34 mph | 34 mph | 36 mph | 36 mph | 19 mph | 19 mph | 19 mph | 19 mph |
| Precip % | 1% | 1% | 2% | 2% | 89% | 71% | 11% | 9% | 51% | 41% | 9% | 7% | 24% | 19% |
| Forecast |
RED RUN AT RYAN ROAD NEAR WARREN, MI · Oct 9, 8:00 AM UTC
Nearby river temperature: 57.7°F at CLINTON RIVER AT STERLING HEIGHTS, MI (25.9 mi away) · Oct 9, 8:00 AM UTC
Good for fishing (85/100), from 6 available inputs. Supporting this: Wind 7 mph from the southwest. Measured water temperature 59°F from a representative gauge 27.1 mi away. Provisional data. Not available from a verified source for this lake: pressure trend. Confidence is moderate (72%) 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 southwest. 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.
Excellent for sailing (90/100), from 4 available inputs. Supporting this: Wind 7 mph from the SW is workable but not ideal. No active official alerts for this lake. 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 7 mph from the southwest. Gusts to 12 mph. Confidence is high (90%).
Surface water measured at 59°F. Cold shock reflex presents an immediate drowning 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.
Located in MI, Lake St. Clair is a prominent freshwater lake known for its freshwater recreation and accessible shoreline. From open-water cruising and watersports to morning kayak tours, the lake attracts visitors throughout the warmer months. Managing stewardship is overseen by state and local natural resource agencies, ensuring sustainable multi-use access.
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 Bluegill, Smallmouth Bass, Largemouth Bass, Pumpkinseed Sunfish. 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 Lake St. Clair 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, 4:50 PM EDT