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Dexter Lake is a reservoir in Oregon. It covers roughly 1,025 surface acres (about 2 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. Other waters in the region include Dorena Reservoir, Cottage Grove Lake, and Fern Ridge Reservoir. Forecasts for Dexter Lake 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 9, 4:00 AM 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 (87/100) across 4 activities. Best right now: Boating (100/100).
How the score is calculated →Best excellent fishing window, averaging 92/100 across these hours. Wind 5 mph from the north-northwest. Dusk hours (18:00 local). Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 49° | 48° | 48° | 47° | 48° | 49° | 51° | 55° | 57° | 59° | 63° | 61° | 60° | 59° | 57° | 56° | 54° | 50° | 48° | 46° | 46° | 44° | 42° | 41° |
| Wind (kts) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 2 | 3 | 4 | 5 | 6 | 6 | 5 | 6 | 7 | 6 | 4 | 2 | 1 | 0 | 0 |
| Direction | — | — | — | — | — | — | NW | W | W | W | NW | NW | NW | NW | NW | W | NW | NW | NW | NW | NW | W | — | — |
| Gusts (kts) | 1 | 1 | 1 | 1 | 1 | 2 | 3 | 4 | 4 | 5 | 7 | 9 | 11 | 12 | 12 | 11 | 11 | 13 | 12 | 10 | 6 | 3 | 2 | 2 |
| Precip % | 0% | 0% | 0% | 0% | 0% | 0% | 1% | 3% | 4% | 7% | 15% | 30% | 33% | 36% | 21% | 12% | 7% | 3% | 1% | 0% | 0% | 0% | 0% | 0% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Fri, 4 AM PDT | 49°F | Calm | 1 mph | 0% | 16% | Patchy Fog |
| Fri, 5 AM PDT | 48°F | Calm | 1 mph | 0% | 25% | Patchy Fog |
| Fri, 6 AM PDT | 48°F | Calm | 1 mph | 0% | 35% | Areas Of Fog |
| Fri, 7 AM PDT | 47°F | Calm | 1 mph | 0% | 46% | Areas Of Fog |
| Fri, 8 AM PDT | 48°F | Calm | 1 mph | 0% | 54% | Areas Of Fog |
| Fri, 9 AM PDT | 49°F | Calm | 2 mph | 0% | 61% | Areas Of Fog |
| Fri, 10 AM PDT | 51°F | 1 mph WNW (293°) | 4 mph | 1% | 80% | Patchy Fog |
| Fri, 11 AM PDT | 55°F | 2 mph W (270°) | 5 mph | 3% | 64% | Partly Sunny |
| Fri, 12 PM PDT | 57°F | 2 mph W (270°) | 5 mph | 4% | 64% | Partly Sunny |
| Fri, 1 PM PDT | 59°F | 2 mph W (270°) | 6 mph | 7% | 54% | Partly Sunny |
| Fri, 2 PM PDT | 63°F | 3 mph WNW (293°) | 8 mph | 15% | 58% | Slight Chance Light Rain |
| Fri, 3 PM PDT | 61°F | 5 mph NW (315°) | 10 mph | 30% | 86% | Chance Light Rain |
| Fri, 4 PM PDT | 60°F | 6 mph NW (315°) | 13 mph | 33% | 85% | Chance Light Rain |
| Fri, 5 PM PDT | 59°F | 7 mph WNW (293°) | 14 mph | 36% | 88% | Chance Light Rain |
| Fri, 6 PM PDT | 57°F | 7 mph NW (315°) | 14 mph | 21% | 85% | Slight Chance Light Rain |
| Fri, 7 PM PDT | 56°F | 6 mph W (270°) | 13 mph | 12% | 76% | Mostly Cloudy |
| Fri, 8 PM PDT | 54°F | 7 mph WNW (293°) | 13 mph | 7% | 76% | Mostly Cloudy |
| Fri, 9 PM PDT | 50°F | 8 mph WNW (293°) | 15 mph | 3% | 78% | Mostly Cloudy |
| Fri, 10 PM PDT | 48°F | 7 mph WNW (293°) | 14 mph | 1% | 43% | Partly Cloudy |
| Fri, 11 PM PDT | 46°F | 5 mph WNW (293°) | 12 mph | 0% | 36% | Partly Cloudy |
| Sat, 12 AM PDT | 46°F | 2 mph WNW (293°) | 7 mph | 0% | 58% | Mostly Cloudy |
| Sat, 1 AM PDT | 44°F | 1 mph W (270°) | 4 mph | 0% | 50% | Patchy Fog |
| Sat, 2 AM PDT | 42°F | Calm | 2 mph | 0% | 25% | Areas Of Fog |
| Sat, 3 AM PDT | 41°F | Calm | 2 mph | 0% | 19% | Areas Of Fog |
| Sat, 4 AM PDT | 39°F | Calm | 2 mph | 0% | 13% | Areas Of Fog |
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) | 47° | 64° | 38° | 56° | 36° | 61° | 34° | 63° | 37° | 63° | 43° | 65° | 41° | 70° |
| Wind | 0 mph | NW 0 to 7 mph | WNW 0 to 8 mph | NE 1 to 5 mph | NNE 0 to 5 mph | NE 1 to 12 mph | ENE 2 to 12 mph | NNW 1 to 6 mph | ENE 0 to 6 mph | N 0 to 5 mph | S 0 to 3 mph | NW 0 to 3 mph | ENE 3 mph | NNE 0 to 3 mph |
| Gusts | 1 mph | 14 mph | 15 mph | 10 mph | 10 mph | 18 mph | 18 mph | 9 mph | 9 mph | 8 mph | 6 mph | 7 mph | 8 mph | 7 mph |
| Precip % | 0% | 36% | 21% | 4% | 4% | 0% | 0% | 0% | 11% | 11% | 25% | 25% | 4% | 1% |
| Forecast |
Nearby river temperature: 63.9°F at MIDDLE FORK WILLAMETTE RIVER NEAR DEXTER, OR (3.1 mi away) · Oct 9, 11:30 AM UTC
Good for fishing (83/100), from 5 available inputs. Supporting this: Wind 0 mph from the south. 0% chance of precipitation. 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 (100/100), from 4 available inputs. Supporting this: Wind 0 mph from the south. Gusts to 1 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 (64/100), from 4 available inputs. Supporting this: Gusts are within 1 mph of sustained wind, so the breeze is steady. No active official alerts for this lake. 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 (98/100), from 5 available inputs. Supporting this: Wind 0 mph from the south. Gusts to 1 mph. 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.
Dexter Lake is a picturesque freshwater reservoir in OR known for its freshwater fishing, boating access, and attractive shoreline parks. With multiple recreation sites overseen by state and local natural resource agencies, visitors enjoy comfortable access to open-water cruising and shore angling. Always observe posted speed limits and maritime right-of-way rules.
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 Bluegill, Smallmouth Bass, Chinook Salmon, Lahontan Cutthroat 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.
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 Dexter 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, 4:38 AM PDT