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Lake Billy Chinook sits in Oregon and is classified as a reservoir. It covers roughly 4,000 surface acres (about 6 square miles). For this location, LakeRadar tracks an hourly and 7-day forecast, wind and gust outlook, and activity scores for boating, paddling, and swimming. If you are planning a trip, Timothy Lake and Clear Lake are also nearby. Forecasts for Lake Billy Chinook come from the National Weather Service and refresh several times a day.
Updated
Latest source update is older than expected. Use caution and check the official source.
The last automated check (Oct 10, 7:15 PM PDT) found no active alerts for this lake, but that check is older than LakeRadar's alert freshness window, so the current alert status could not be confirmed.
Confirm before heading out: official alerts for this area or weather.gov/alerts. LakeRadar scores summarize available conditions and are not a substitute for official warnings, local rules, or on-water judgment.
Overall Good (88/100) across 4 activities. Best right now: Boating (98/100).
How the score is calculated →Best excellent fishing window, averaging 90/100 across these hours. Wind 10 mph from the northeast. Dusk hours (18:00 local). Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 40° | 40° | 38° | 37° | 37° | 36° | 36° | 36° | 36° | 35° | 35° | 36° | 39° | 42° | 40° | 41° | 43° | 45° | 47° | 47° | 47° | 47° | 47° | 46° |
| Wind (kts) | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 5 | 5 | 7 | 13 | 13 | 12 | 13 | 13 | 13 | 13 | 12 | 9 | 9 | 9 | 2 |
| Direction | N | N | NE | NE | NW | W | NW | NW | NW | NW | N | N | N | N | N | N | N | N | NE | NE | NE | NE | NE | N |
| Gusts (kts) | 6 | 4 | 5 | 4 | 4 | 5 | 6 | 5 | 6 | 8 | 9 | 11 | 16 | 20 | 22 | 23 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 7 |
| Precip % | 0% | 0% | 1% | 1% | 1% | 1% | 1% | 1% | 4% | 4% | 4% | 13% | 13% | 13% | 1% | 1% | 1% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Sat, 9 PM PDT | 40°F | 2 mph N (0°) | 7 mph | 0% | 34% | Partly Cloudy |
| Sat, 10 PM PDT | 40°F | 2 mph N (0°) | 5 mph | 0% | 32% | Partly Cloudy |
| Sat, 11 PM PDT | 38°F | 2 mph NE (45°) | 6 mph | 1% | 16% | Mostly Clear |
| Sun, 12 AM PDT | 37°F | 2 mph NE (45°) | 5 mph | 1% | 15% | Mostly Clear |
| Sun, 1 AM PDT | 37°F | 2 mph NW (315°) | 5 mph | 1% | 22% | Mostly Clear |
| Sun, 2 AM PDT | 36°F | 2 mph W (270°) | 6 mph | 1% | 45% | Partly Cloudy |
| Sun, 3 AM PDT | 36°F | 3 mph NW (315°) | 7 mph | 1% | 42% | Partly Cloudy |
| Sun, 4 AM PDT | 36°F | 3 mph NW (315°) | 6 mph | 1% | 44% | Partly Cloudy |
| Sun, 5 AM PDT | 36°F | 5 mph NW (315°) | 7 mph | 4% | 55% | Mostly Cloudy |
| Sun, 6 AM PDT | 35°F | 6 mph NW (315°) | 9 mph | 4% | 48% | Mostly Sunny |
| Sun, 7 AM PDT | 35°F | 6 mph N (0°) | 10 mph | 4% | 39% | Mostly Sunny |
| Sun, 8 AM PDT | 36°F | 8 mph N (0°) | 13 mph | 13% | 54% | Partly Sunny |
| Sun, 9 AM PDT | 39°F | 15 mph N (0°) | 18 mph | 13% | 55% | Partly Sunny |
| Sun, 10 AM PDT | 42°F | 15 mph N (0°) | 23 mph | 13% | 79% | Mostly Cloudy |
| Sun, 11 AM PDT | 40°F | 14 mph N (0°) | 25 mph | 1% | 63% | Partly Sunny |
| Sun, 12 PM PDT | 41°F | 15 mph N (0°) | 27 mph | 1% | 53% | Partly Sunny |
| Sun, 1 PM PDT | 43°F | 15 mph N (0°) | 28 mph | 1% | 47% | Mostly Sunny |
| Sun, 2 PM PDT | 45°F | 15 mph N (0°) | 28 mph | 0% | 49% | Mostly Sunny |
| Sun, 3 PM PDT | 47°F | 15 mph NE (45°) | 28 mph | 0% | 22% | Sunny |
| Sun, 4 PM PDT | 47°F | 14 mph NE (45°) | 28 mph | 0% | 26% | Mostly Sunny |
| Sun, 5 PM PDT | 47°F | 10 mph NE (45°) | 27 mph | 0% | 39% | Mostly Sunny |
| Sun, 6 PM PDT | 47°F | 10 mph NE (45°) | 27 mph | 0% | 39% | Partly Cloudy |
| Sun, 7 PM PDT | 47°F | 10 mph NE (45°) | 27 mph | 0% | 39% | Partly Cloudy |
| Sun, 8 PM PDT | 46°F | 2 mph N (0°) | 8 mph | 0% | 33% | Partly Cloudy |
| Sun, 9 PM PDT | 45°F | 2 mph N (0°) | 8 mph | 0% | 33% | 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 | Today October 10, 2026 | This Afternoon October 10, 2026 | Tonight October 10, 2026 | Tonight 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) | 53° | 53° | 35° | 35° | 47° | 33° | 54° | 32° | 62° | 38° | 66° | 40° | 68° | 41° |
| Wind | NW 5 to 9 mph | N 5 to 9 mph | NW 2 to 7 mph | NW 5 mph | N 6 to 15 mph | NW 2 to 10 mph | NW 2 to 7 mph | S 0 to 5 mph | E 2 to 7 mph | SW 0 to 5 mph | NW 2 to 7 mph | NW 0 to 5 mph | NE 2 to 6 mph | N 0 to 6 mph |
| Gusts | 17 mph | 17 mph | 15 mph | 12 mph | 28 mph | 27 mph | 16 mph | 14 mph | 12 mph | 12 mph | 13 mph | 13 mph | 14 mph | 14 mph |
| Precip % | 1% | 0% | 4% | 4% | 13% | 1% | 0% | 0% | 1% | 2% | 2% | 1% | 0% | 0% |
| Forecast |
Good for fishing (87/100), from 5 available inputs. Supporting this: Wind 2 mph from the north. 0% chance of precipitation. Working against it: Air temperature 40°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 (98/100), from 4 available inputs. Supporting this: Wind 2 mph from the north. Gusts to 7 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.
Fair for sailing (69/100), from 4 available inputs. Supporting this: No active official alerts for this lake. Gusts are within 5 mph of sustained wind, so the breeze is steady. Working against it: Wind 2 mph is light; expect limited sailing. Not available from a verified source for this lake: visibility. Confidence is high (88%).
Excellent for kayaking (95/100), from 5 available inputs. Supporting this: Wind 2 mph from the north. Gusts to 7 mph. Working against it: Air temperature 40°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 OR Parks & Wildlife Authority. Public boaters should verify seasonal launch water levels, gate hours, and daily vehicle/vessel fees before traveling.
Lake Billy Chinook represents a significant aquatic resource in OR, providing vital water storage, wildlife habitat, and public recreation. Anglers target local sport species while boaters take advantage of established launch facilities around the perimeter. Observing safe boating speeds and biosecurity washdown procedures protects the fishery year-round.
Valid freshwater sport fishing license issued by Oregon Department of Fish and Wildlife (ODFW) is required for anglers age 12+. Digital license on mobile is accepted.
Mandatory Clean, Drain & Dry inspection. Out-of-area craft require on-site Aquatic Invasive Species (AIS Quagga/Zebra) inspection or decontamination before launch. USCG life jackets required for all.
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 Bull Trout, Rainbow Trout, Smallmouth Bass, Kokanee Salmon. 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 Billy Chinook 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 10, 9:00 PM PDT