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Lake Lowell sits in Idaho and is classified as a reservoir. At around 9,025 acres (about 14 square miles), it is a mid-sized waterbody. Below you will find an hourly and 7-day forecast, wind and gust outlook, and activity scores for boating, paddling, and swimming. Nearby alternatives include Arrowrock Reservoir and C.J. Strike Reservoir. Check the hourly forecast and activity outlook below before heading out to Lake Lowell.
Updated
Latest source update is older than expected. Use caution and check the official source.
The last automated check (Oct 9, 12:39 PM MDT) 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 (89/100) across 4 activities. Best right now: Boating (93/100).
How the score is calculated →Best excellent fishing window, averaging 92/100 across these hours. Wind 8 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 | 8p | 9p | 10p | 11p | 12a | 1a | 2a | 3a | 4a | 5a | 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | 7p |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 78° | 81° | 82° | 83° | 82° | 79° | 74° | 68° | 65° | 61° | 59° | 57° | 56° | 54° | 53° | 51° | 50° | 48° | 47° | 49° | 53° | 54° | 55° | 56° |
| Wind (kts) | 6 | 7 | 7 | 7 | 7 | 3 | 2 | 6 | 9 | 10 | 10 | 10 | 9 | 9 | 10 | 10 | 10 | 10 | 9 | 11 | 12 | 12 | 12 | 11 |
| Direction | N | N | N | N | N | N | SW | W | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW |
| Gusts (kts) | 10 | 12 | 11 | 11 | 12 | 7 | 5 | 11 | 18 | 20 | 18 | 20 | 17 | 16 | 19 | 20 | 16 | 19 | 18 | 16 | 18 | 17 | 16 | 16 |
| Precip % | 0% | 0% | 0% | 0% | 2% | 5% | 4% | 3% | 1% | 2% | 2% | 1% | 2% | 1% | 2% | 4% | 3% | 3% | 3% | 4% | 4% | 4% | 3% | 3% |
| Time | Temp | Wind | Gusts | Precip | Cloud | Condition |
|---|---|---|---|---|---|---|
| Fri, 2 PM MDT | 78°F | 7 mph NNW (338°) | 12 mph | 0% | 0% | Sunny |
| Fri, 3 PM MDT | 81°F | 8 mph NNW (338°) | 14 mph | 0% | 1% | Sunny |
| Fri, 4 PM MDT | 82°F | 8 mph NNW (338°) | 13 mph | 0% | 1% | Sunny |
| Fri, 5 PM MDT | 83°F | 8 mph NNW (338°) | 13 mph | 0% | 12% | Sunny |
| Fri, 6 PM MDT | 82°F | 8 mph NNW (338°) | 14 mph | 2% | 26% | Partly Cloudy |
| Fri, 7 PM MDT | 79°F | 3 mph N (0°) | 8 mph | 5% | 62% | Mostly Cloudy |
| Fri, 8 PM MDT | 74°F | 2 mph SW (225°) | 6 mph | 4% | 74% | Mostly Cloudy |
| Fri, 9 PM MDT | 68°F | 7 mph W (270°) | 13 mph | 3% | 53% | Mostly Cloudy |
| Fri, 10 PM MDT | 65°F | 10 mph WNW (293°) | 21 mph | 1% | 71% | Mostly Cloudy |
| Fri, 11 PM MDT | 61°F | 12 mph WNW (293°) | 23 mph | 2% | 81% | Mostly Cloudy |
| Sat, 12 AM MDT | 59°F | 12 mph WNW (293°) | 21 mph | 2% | 62% | Mostly Cloudy |
| Sat, 1 AM MDT | 57°F | 12 mph WNW (293°) | 23 mph | 1% | 57% | Mostly Cloudy |
| Sat, 2 AM MDT | 56°F | 10 mph WNW (293°) | 20 mph | 2% | 51% | Mostly Cloudy |
| Sat, 3 AM MDT | 54°F | 10 mph WNW (293°) | 18 mph | 1% | 42% | Partly Cloudy |
| Sat, 4 AM MDT | 53°F | 12 mph WNW (293°) | 22 mph | 2% | 38% | Partly Cloudy |
| Sat, 5 AM MDT | 51°F | 12 mph WNW (293°) | 23 mph | 4% | 26% | Partly Cloudy |
| Sat, 6 AM MDT | 50°F | 12 mph WNW (293°) | 18 mph | 3% | 43% | Mostly Sunny |
| Sat, 7 AM MDT | 48°F | 12 mph WNW (293°) | 22 mph | 3% | 43% | Mostly Sunny |
| Sat, 8 AM MDT | 47°F | 10 mph WNW (293°) | 21 mph | 3% | 68% | Partly Sunny |
| Sat, 9 AM MDT | 49°F | 13 mph WNW (293°) | 18 mph | 4% | 69% | Partly Sunny |
| Sat, 10 AM MDT | 53°F | 14 mph NW (315°) | 21 mph | 4% | 67% | Partly Sunny |
| Sat, 11 AM MDT | 54°F | 14 mph NW (315°) | 20 mph | 4% | 58% | Partly Sunny |
| Sat, 12 PM MDT | 55°F | 14 mph NW (315°) | 18 mph | 3% | 64% | Partly Sunny |
| Sat, 1 PM MDT | 56°F | 13 mph NW (315°) | 18 mph | 3% | 62% | Partly Sunny |
| Sat, 2 PM MDT | 56°F | 13 mph NW (315°) | 18 mph | 2% | 73% | Mostly 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 9, 2026 | This Afternoon 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Temp (°F) | 84° | 83° | 47° | 58° | 39° | 55° | 37° | 54° | 36° | 61° | 39° | 65° | 40° | 66° |
| Wind | W 3 to 10 mph | N 3 to 8 mph | WNW 2 to 12 mph | NW 10 to 14 mph | WNW 12 mph | NW 7 to 10 mph | WNW 7 to 13 mph | WNW 7 to 10 mph | W 3 mph | NW 1 to 7 mph | WNW 1 to 5 mph | WNW 1 to 8 mph | NW 1 to 5 mph | WNW 1 to 5 mph |
| Gusts | 18 mph | 14 mph | 23 mph | 22 mph | 18 mph | 16 mph | 18 mph | 16 mph | 9 mph | 13 mph | 9 mph | 14 mph | 10 mph | 10 mph |
| Precip % | 0% | 0% | 5% | 4% | 19% | 28% | 25% | 18% | 12% | 9% | 7% | 4% | 1% | 0% |
| Forecast |
No active USGS or USACE telemetry gauge is currently mapped to Lake Lowell. Not available from a verified source for this lake.
Nearby river temperature: 61.5°F at BOISE RIVER AT CALDWELL, ID (7.4 mi away) · Oct 9, 7:45 PM UTC
Good for fishing (84/100), from 5 available inputs. Supporting this: Wind 7 mph from the north-northwest. 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 (93/100), from 4 available inputs. Supporting this: Wind 7 mph from the north-northwest. 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 (89/100), from 4 available inputs. Supporting this: Wind 7 mph from the NNW 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%).
Excellent for kayaking (93/100), from 5 available inputs. Supporting this: Wind 7 mph from the north-northwest. Gusts to 12 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 ID Parks & Wildlife Authority. Public boaters should verify seasonal launch water levels, gate hours, and daily vehicle/vessel fees before traveling.
Lake Lowell is a well-known freshwater reservoir in ID, providing refreshing open water and abundant outdoor recreation. Anglers value its seasonal bite while recreational boaters enjoy expansive open water corridors. Checking active weather advisories and water temperatures ensures a rewarding visit.
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 Largemouth Bass, Bluegill, Common Carp, 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.
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 Lake Lowell 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, 2:20 PM MDT