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Brownlee Reservoir is a reservoir located in Idaho. Its recorded surface area is approximately 15,000 acres. Fish documented in the area include Rainbow Trout. Other waters in the region include Lake Cascade and Payette Lake. The page brings together an hourly and 7-day forecast, wind and gust outlook, fishing conditions, and activity scores for boating, paddling, and swimming. Current weather, wind, and activity conditions for Brownlee Reservoir are updated throughout the day.
Updated
No active alerts for this lake as of the last check (Oct 9, 2:05 AM MDT). Alerts are re-checked automatically; see the official source for updates.
Best excellent fishing window, averaging 91/100 across these hours. Wind 7 mph from the southwest. Morning hours (08:00 local). Derived from the hourly forecast; official alerts are not forecast and are checked separately.
| Metric | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 59° | 58° | 57° | 56° | 53° | 53° | 53° | 54° | 58° | 60° | 62° | 65° | 66° | 67° | 67° | 67° | 65° | 60° | 56° | 53° | 51° | 50° | 48° | 48° |
| Wind (kts) | 2 | 3 | 3 | 3 | 7 | 7 | 6 | 6 | 5 | 6 | 6 | 5 | 5 | 7 | 7 | 8 | 10 | 11 | 11 | 12 | 14 | 15 | 15 | 16 |
| Direction | SW | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | W | W | W | W | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gusts (kts) | 4 | 4 | 4 | 5 | 11 | 10 | 9 | 9 | 10 | 10 | 11 | 12 | 13 | 16 | 16 | 16 | 17 | 18 | 20 | 22 | 24 | 24 | 25 | 26 |
| Precip % | 0% | 0% | 0% | 0% | 1% | 1% | 1% | 1% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 1% | 1% | 7% | 6% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Fri, 2 AM MDT | 59°F | 2 mph SW (225°) | 5 mph | 0% | 8% | Mostly Clear |
| Fri, 3 AM MDT | 58°F | 3 mph SW (225°) | 5 mph | 0% | 8% | Mostly Clear |
| Fri, 4 AM MDT | 57°F | 3 mph SW (225°) | 5 mph | 0% | 9% | Mostly Clear |
| Fri, 5 AM MDT | 56°F | 3 mph SW (225°) | 6 mph | 0% | 8% | Mostly Clear |
| Fri, 6 AM MDT | 53°F | 8 mph SW (225°) | 13 mph | 1% | 5% | Sunny |
| Fri, 7 AM MDT | 53°F | 8 mph SW (225°) | 12 mph | 1% | 10% | Sunny |
| Fri, 8 AM MDT | 53°F | 7 mph SW (225°) | 10 mph | 1% | 27% | Mostly Sunny |
| Fri, 9 AM MDT | 54°F | 7 mph SW (225°) | 10 mph | 1% | 15% | Sunny |
| Fri, 10 AM MDT | 58°F | 6 mph SW (225°) | 12 mph | 0% | 10% | Sunny |
| Fri, 11 AM MDT | 60°F | 7 mph SW (225°) | 12 mph | 0% | 6% | Sunny |
| Fri, 12 PM MDT | 62°F | 7 mph WSW (248°) | 13 mph | 0% | 2% | Sunny |
| Fri, 1 PM MDT | 65°F | 6 mph WSW (248°) | 14 mph | 0% | 3% | Sunny |
| Fri, 2 PM MDT | 66°F | 6 mph W (270°) | 15 mph | 0% | 4% | Sunny |
| Fri, 3 PM MDT | 67°F | 8 mph W (270°) | 18 mph | 0% | 9% | Sunny |
| Fri, 4 PM MDT | 67°F | 8 mph W (270°) | 18 mph | 0% | 12% | Sunny |
| Fri, 5 PM MDT | 67°F | 9 mph WNW (293°) | 18 mph | 0% | 22% | Sunny |
| Fri, 6 PM MDT | 65°F | 12 mph WNW (293°) | 20 mph | 0% | 29% | Partly Cloudy |
| Fri, 7 PM MDT | 60°F | 13 mph WNW (293°) | 21 mph | 0% | 43% | Partly Cloudy |
| Fri, 8 PM MDT | 56°F | 13 mph WNW (293°) | 23 mph | 0% | 73% | Mostly Cloudy |
| Fri, 9 PM MDT | 53°F | 14 mph WNW (293°) | 25 mph | 0% | 76% | Mostly Cloudy |
| Fri, 10 PM MDT | 51°F | 16 mph WNW (293°) | 28 mph | 1% | 82% | Mostly Cloudy |
| Fri, 11 PM MDT | 50°F | 17 mph WNW (293°) | 28 mph | 1% | 81% | Mostly Cloudy |
| Sat, 12 AM MDT | 48°F | 17 mph WNW (293°) | 29 mph | 7% | 73% | Mostly Cloudy |
| Sat, 1 AM MDT | 48°F | 18 mph WNW (293°) | 30 mph | 6% | 89% | Cloudy |
| Sat, 2 AM MDT | 47°F | 16 mph WNW (293°) | 29 mph | 4% | 90% | 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 | 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) | 53° | 67° | 40° | 45° | 37° | 44° | 36° | 45° | 38° | 50° | 39° | 50° | 39° | 52° |
| Wind | SW 3 mph | WSW 6 to 9 mph | WNW 12 to 18 mph | NW 7 to 14 mph | NNW 10 to 14 mph | NNW 7 to 12 mph | NNW 9 to 17 mph | NNW 2 to 13 mph | NNW 2 to 7 mph | NW 2 to 7 mph | NW 5 mph | NW 5 mph | NW 5 mph | NNW 2 to 6 mph |
| Gusts | 6 mph | 18 mph | 30 mph | 23 mph | 28 mph | 18 mph | 31 mph | 21 mph | 14 mph | 13 mph | 8 mph | 9 mph | 10 mph | 10 mph |
| Precip % | 0% | 1% | 7% | 11% | 45% | 16% | 25% | 32% | 11% | 6% | 6% | 10% | 5% | 1% |
| Forecast |
No active USGS or USACE telemetry gauge is currently mapped to Brownlee Reservoir. Not available from a verified source for this lake.
Nearby river temperature: 62.8°F at SNAKE RIVER AT WEISER ID (25.1 mi away) · Oct 9, 6:45 AM UTC
Excellent for fishing (93/100), from 6 available inputs. Supporting this: Measured water temperature 62°F from a representative gauge 25.1 mi away. Provisional data. Wind 7 mph from the west. Not available from a verified source for this lake: pressure trend. Confidence is moderate (82%) because some inputs are unavailable or older than ideal.
Excellent for boating (92/100), 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 (88/100), 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 (76/100), from 5 available inputs. Supporting this: Wind 7 mph from the west. Gusts to 13 mph. Combined air and water temperature is 118°F (below the 120°F safety guideline). Thermal protection recommended for paddle craft. Confidence is high (90%).
No verified water temperature source exists for this lake, so a swimming comfort score is not shown.
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Individual boat ramp GPS coordinates are maintained under the jurisdiction of ID Parks & Wildlife Authority. Public boaters should verify seasonal launch water levels, gate hours, and daily vehicle/vessel fees before traveling.
With its sweeping shoreline and open waters, Brownlee Reservoir in ID is a favorite getaway for anglers, watersports fans, and campers. The lake provides access via several public ramps, offering easy entry for trailered boats and kayaks. Follow state boating education standards and carry required safety equipment onboard.
Valid freshwater sport fishing license issued by Idaho Department of Fish and Game (IDFG) is required for anglers age 14+. 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 Rainbow 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.
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 Brownlee Reservoir 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, 2:05 AM MDT