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Lake Quassapaug sits in Connecticut and is classified as a lake. The water surface spans about 296 acres, making it a modest 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. Nearby alternatives include Bantam Lake, Lake Waramaug, and Candlewood Lake. Use the conditions and forecast on this page to decide when to go boating, fishing, or paddling at Lake Quassapaug.
Updated
No active alerts for this lake as of the last check (Oct 9, 9:53 AM EDT). Alerts are re-checked automatically; see the official source for updates.
Overall Good (89/100) across 4 activities. Best right now: Boating (91/100).
How the score is calculated →Best excellent fishing window, averaging 91/100 across these hours. Wind 6 mph from the west. Dusk hours (19:00 local). Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 49° | 55° | 60° | 63° | 64° | 64° | 66° | 64° | 64° | 60° | 56° | 53° | 51° | 50° | 50° | 49° | 48° | 47° | 46° | 45° | 44° | 42° | 42° | 44° |
| Wind (kts) | 6 | 7 | 9 | 9 | 10 | 9 | 8 | 7 | 6 | 6 | 5 | 4 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 3 |
| Direction | W | W | W | W | W | W | W | W | NW | NW | W | W | W | W | W | W | W | NW | NW | NW | NW | NW | NW | N |
| Gusts (kts) | 12 | 18 | 22 | 23 | 22 | 21 | 21 | 20 | 19 | 16 | 11 | 8 | 6 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 |
| Precip % | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Fri, 9 AM EDT | 49°F | 7 mph W (270°) | 14 mph | 0% | 1% | Sunny |
| Fri, 10 AM EDT | 55°F | 8 mph W (270°) | 21 mph | 0% | 1% | Sunny |
| Fri, 11 AM EDT | 60°F | 10 mph W (270°) | 25 mph | 0% | 2% | Sunny |
| Fri, 12 PM EDT | 63°F | 10 mph W (270°) | 27 mph | 0% | 3% | Sunny |
| Fri, 1 PM EDT | 64°F | 12 mph W (270°) | 25 mph | 0% | 5% | Sunny |
| Fri, 2 PM EDT | 64°F | 10 mph W (270°) | 24 mph | 0% | 5% | Sunny |
| Fri, 3 PM EDT | 66°F | 9 mph W (270°) | 24 mph | 0% | 5% | Sunny |
| Fri, 4 PM EDT | 64°F | 8 mph W (270°) | 23 mph | 0% | 3% | Sunny |
| Fri, 5 PM EDT | 64°F | 7 mph NW (315°) | 22 mph | 0% | 4% | Sunny |
| Fri, 6 PM EDT | 60°F | 7 mph NW (315°) | 18 mph | 0% | 4% | Clear |
| Fri, 7 PM EDT | 56°F | 6 mph W (270°) | 13 mph | 0% | 5% | Clear |
| Fri, 8 PM EDT | 53°F | 5 mph W (270°) | 9 mph | 0% | 5% | Clear |
| Fri, 9 PM EDT | 51°F | 2 mph W (270°) | 7 mph | 0% | 27% | Partly Cloudy |
| Fri, 10 PM EDT | 50°F | 2 mph W (270°) | 6 mph | 0% | 5% | Clear |
| Fri, 11 PM EDT | 50°F | 2 mph W (270°) | 5 mph | 0% | 14% | Mostly Clear |
| Sat, 12 AM EDT | 49°F | 2 mph W (270°) | 5 mph | 0% | 16% | Mostly Clear |
| Sat, 1 AM EDT | 48°F | 1 mph W (270°) | 5 mph | 0% | 17% | Mostly Clear |
| Sat, 2 AM EDT | 47°F | 2 mph NW (315°) | 5 mph | 0% | 16% | Mostly Clear |
| Sat, 3 AM EDT | 46°F | 2 mph NW (315°) | 5 mph | 0% | 4% | Clear |
| Sat, 4 AM EDT | 45°F | 2 mph NW (315°) | 5 mph | 0% | 3% | Clear |
| Sat, 5 AM EDT | 44°F | 2 mph NW (315°) | 5 mph | 0% | 12% | Mostly Clear |
| Sat, 6 AM EDT | 42°F | 2 mph NW (315°) | 5 mph | 0% | 5% | Sunny |
| Sat, 7 AM EDT | 42°F | 2 mph NW (315°) | 5 mph | 0% | 3% | Sunny |
| Sat, 8 AM EDT | 44°F | 3 mph N (0°) | 6 mph | 0% | 40% | Mostly Sunny |
| Sat, 9 AM EDT | 47°F | 2 mph N (0°) | 6 mph | 0% | 29% | Mostly Sunny |
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 | 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 | Thursday Night October 15, 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 66° | 41° | 65° | 45° | 62° | 54° | 67° | 52° | 67° | 50° | 62° | 45° | 61° | 47° |
| Wind | W 7 to 12 mph | W 1 to 7 mph | NW 3 mph | NW 1 mph | SE 1 to 8 mph | E 6 to 12 mph | N 6 to 12 mph | NW 5 mph | W 2 to 8 mph | W 7 to 13 mph | NW 10 to 14 mph | NW 5 to 9 mph | W 6 mph | S 5 mph |
| Gusts | 27 mph | 18 mph | 7 mph | 4 mph | 15 mph | 17 mph | 17 mph | 10 mph | 15 mph | 21 mph | 22 mph | 17 mph | 12 mph | 8 mph |
| Precip % | 0% | 0% | 0% | 0% | 73% | 97% | 60% | 4% | 18% | 25% | 21% | 5% | 4% | 14% |
| Forecast |
Good for fishing (89/100), from 5 available inputs. Supporting this: Wind 7 mph from the west. Morning hours (09:00 local). 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 (91/100), from 4 available inputs. Supporting this: Wind 7 mph from the west. 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.
Good for sailing (87/100), from 4 available inputs. Supporting this: Wind 7 mph from the W 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%).
Good for kayaking (89/100), from 5 available inputs. Supporting this: Wind 7 mph from the west. No active official alerts for this lake. 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 CT Parks & Wildlife Authority. Public boaters should verify seasonal launch water levels, gate hours, and daily vehicle/vessel fees before traveling.
Lake Quassapaug offers an inviting freshwater retreat in CT, overseen by state and local natural resource agencies. Its waters provide ample room for watersports, pontoon cruising, and quiet morning paddle trips along sheltered bays. Staying updated on real-time streamflow and meteorological conditions ensures a smooth trip on the water.
Valid freshwater sport fishing license issued by Connecticut Department of Energy and Environmental Protection (DEEP) 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.
Low-wake cruising, electric-troll fishing craft, and quiet-water exploration. Target gamefish include Rainbow Trout, Yellow Perch, Bluegill, Brown Trout. 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.
Mild year-round outdoor climate. Uncrowded waters, active winter bass and crappie fishing, and open year-round boat launch access.
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 Quassapaug 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, 9:55 AM EDT