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Upper Klamath Lake is a lake located in Oregon. At around 61,630 acres (about 96 square miles), it is a very large waterbody. Nearby alternatives include Crater Lake and Diamond Lake. For this location, LakeRadar tracks an hourly and 7-day forecast, wind and gust outlook, and activity scores for boating, paddling, and swimming. Use the conditions and forecast on this page to decide when to go boating, fishing, or paddling at Upper Klamath Lake.
Updated
Latest source update is older than expected. Use caution and check the official source.
The last automated check (Oct 11, 4:14 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 Fair (71/100) across 4 activities. Best right now: Sailing (86/100).
How the score is calculated →Best good fishing window, averaging 88/100 across these hours. Wind 8 mph from the north. Dusk hours (19:00 local). Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 43° | 44° | 42° | 41° | 40° | 38° | 36° | 35° | 33° | 32° | 32° | 32° | 30° | 30° | 28° | 28° | 30° | 32° | 35° | 36° | 38° | 42° | 45° | 48° |
| Wind (kts) | 16 | 15 | 15 | 16 | 16 | 15 | 12 | 11 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 8 | 7 |
| Direction | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N | N |
| Gusts (kts) | 24 | 23 | 23 | 24 | 24 | 23 | 18 | 17 | 14 | 14 | 12 | 12 | 12 | 12 | 12 | 11 | 12 | 12 | 12 | 12 | 14 | 14 | 12 | 11 |
| 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 |
|---|---|---|---|---|---|---|
| Sun, 4 PM PDT | 43°F | 18 mph N (0°) | 28 mph | 0% | 5% | Sunny |
| Sun, 5 PM PDT | 44°F | 17 mph N (0°) | 27 mph | 0% | 7% | Sunny |
| Sun, 6 PM PDT | 42°F | 17 mph N (0°) | 27 mph | 0% | 7% | Mostly Clear |
| Sun, 7 PM PDT | 41°F | 18 mph N (0°) | 28 mph | 0% | 7% | Mostly Clear |
| Sun, 8 PM PDT | 40°F | 18 mph N (0°) | 28 mph | 0% | 7% | Mostly Clear |
| Sun, 9 PM PDT | 38°F | 17 mph N (0°) | 27 mph | 0% | 6% | Mostly Clear |
| Sun, 10 PM PDT | 36°F | 14 mph N (0°) | 21 mph | 0% | 9% | Mostly Clear |
| Sun, 11 PM PDT | 35°F | 13 mph N (0°) | 20 mph | 0% | 4% | Clear |
| Mon, 12 AM PDT | 33°F | 10 mph N (0°) | 16 mph | 0% | 15% | Mostly Clear |
| Mon, 1 AM PDT | 32°F | 10 mph N (0°) | 16 mph | 0% | 12% | Mostly Clear |
| Mon, 2 AM PDT | 32°F | 9 mph N (0°) | 14 mph | 0% | 6% | Mostly Clear |
| Mon, 3 AM PDT | 32°F | 9 mph N (0°) | 14 mph | 0% | 6% | Mostly Clear |
| Mon, 4 AM PDT | 30°F | 9 mph N (0°) | 14 mph | 0% | 4% | Clear |
| Mon, 5 AM PDT | 30°F | 9 mph N (0°) | 14 mph | 0% | 5% | Clear |
| Mon, 6 AM PDT | 28°F | 9 mph N (0°) | 14 mph | 0% | 6% | Sunny |
| Mon, 7 AM PDT | 28°F | 8 mph N (0°) | 13 mph | 0% | 6% | Sunny |
| Mon, 8 AM PDT | 30°F | 9 mph N (0°) | 14 mph | 0% | 2% | Sunny |
| Mon, 9 AM PDT | 32°F | 9 mph N (0°) | 14 mph | 0% | 1% | Sunny |
| Mon, 10 AM PDT | 35°F | 9 mph N (0°) | 14 mph | 0% | 0% | Sunny |
| Mon, 11 AM PDT | 36°F | 9 mph N (0°) | 14 mph | 0% | 1% | Sunny |
| Mon, 12 PM PDT | 38°F | 10 mph NNW (338°) | 16 mph | 0% | 1% | Sunny |
| Mon, 1 PM PDT | 42°F | 10 mph NNW (338°) | 16 mph | 0% | 1% | Sunny |
| Mon, 2 PM PDT | 45°F | 9 mph NNW (338°) | 14 mph | 0% | 2% | Sunny |
| Mon, 3 PM PDT | 48°F | 8 mph NNW (338°) | 13 mph | 0% | 1% | Sunny |
| Mon, 4 PM PDT | 50°F | 9 mph N (0°) | 14 mph | 0% | 1% | 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 11, 2026 | This Afternoon October 11, 2026 | Tonight 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 | Friday October 16, 2026 | Friday Night October 16, 2026 | Saturday October 17, 2026 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 45° | 45° | 27° | 51° | 29° | 58° | 40° | 63° | 41° | 65° | 42° | 67° | 43° | 66° |
| Wind | N 14 to 20 mph | N 18 mph | N 9 to 18 mph | NNW 10 mph | NNW 5 to 8 mph | NE 1 to 5 mph | NNW 1 to 5 mph | N 0 to 5 mph | N 0 to 6 mph | NNE 0 to 7 mph | N 0 to 3 mph | NE 0 to 5 mph | NNE 2 mph | SSE 3 mph |
| Gusts | 30 mph | 28 mph | 28 mph | 16 mph | 13 mph | 8 mph | 7 mph | 7 mph | 8 mph | 9 mph | 6 mph | 8 mph | 4 mph | 13 mph |
| Precip % | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% |
| Forecast |
Last observed: 64.6°F at UPPER KLAMATH LAKE AT HOWARD BAY, OR on Oct 7, 7:00 PM UTC
Fair for fishing (70/100), from 5 available inputs. Supporting this: 0% chance of precipitation. Afternoon hours (16:00 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.
Fair for boating (67/100), from 4 available inputs. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Working against it: Gusts to 28 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.
Good for sailing (86/100), from 4 available inputs. Supporting this: Wind 18 mph from the N is in the preferred sailing range. No active official alerts for this lake. Not available from a verified source for this lake: visibility. Confidence is high (88%).
Fair for kayaking (64/100), from 5 available inputs. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Working against it: Gusts to 28 mph. Confidence is high (90%).
Surface water measured at 65°F. Air and water contrast evaluate recreational immersion comfort.
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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.
Widely appreciated across OR, Upper Klamath Lake provides an engaging setting for all styles of freshwater watercraft and shore recreation. Anglers seek out structure-oriented fish, while families and boaters take advantage of designated recreation zones. Be sure to check seasonal gate hours and daily parking pass requirements.
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 Yellow Perch, Largemouth Bass, Pumpkinseed Sunfish, Brook 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 Upper Klamath 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 11, 4:53 PM PDT