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Lake Lowell Fishing Report

Updated Fri, Sep 4, 2026 from live gauge and weather data

The Treasure Valley’s off-channel giant: Lowell’s weedy flats grow double-digit largemouth minutes from Boise’s sprawl.

3/5
Fair. Fish early or late.Heat pins the bite to the dawn and dusk windows.
Water temp
~84 F est.
Air / High
56 / 58 F
Wind
ENE 1 mph

Sources: Open-Meteo, solunar calculated for these coordinates.

Satellite view
Friday
4
September 2026

Today's Fishing Report

Generated this morning from live readings: gauge, weather model, sun and moon. A fresh report is published here every morning.

3/5Fair. Fish early or late.Heat pins the bite to the dawn and dusk windows.

Lake Lowell stays in its summer rhythm: early magic, midday siesta, evening reprieve. Today brings cloud cover, wind ENE around 1 mph, falling pressure near 1014 hPa and a high of 58. Water sits around 84 F for the season (estimated). With the last quarter, the solunar majors run 5:39 AM-7:39 AM and 5:39 PM-7:39 PM: plan around them and beat the heat.

The plan, species by species

Catfish (blue, channel)Good

Anchor on 20-30 ft baited holes with punch bait or cut shad. They keep biting through the heat when everything else quits.

Largemouth bassFair

Topwater at first light on points and seawalls, then slide out to 12-25 ft brush and points with a Carolina rig, deep crank or drop shot. The bite is dawn, dusk or deep.

White bassFair

Early schooling action over humps; slabs and small spinners under the birds.

CrappieSlow

Straight down on bridge pilings and deep brush at 15-25 ft. Minnows outfish jigs in hot water; move until the graph shows them stacked.

Tomorrow: Warmer at 73 F. The solunar majors shift about 50 minutes later.Next report: Sat, Sep 5, 6:30 AMHow this report is made →

Water and weather

Live readings.

No live gauge on this water

Conditions here are modeled from weather, season and the nearest stations. Water readings appear when a USGS gauge is available.

5060708090JanMarMayJulSepNovSep, ~84 F now

Right now

Latest readings

Air temp56 F
High / Low58 / 48 F
WindENE 1-5 mph
Pressure1013.9 hPa, falling
Sky / Rain100% cloud, 68%
Sunrise / Sunset07:14 / 20:16
MoonLast Quarter, 50%
Water temp (seasonal)~84 F est.

Bite planner

Hour-by-hour bite forecast for today. Tap a bar to see why.

5 AM8 AM11 AM2 PM5 PM8 PMsunrisesunsetPRIMEPRIME

Next 7 days

Tap a day for the detailed outlook.

Fri Sep 4 · Rain, 58/48 F, wind 9 mph, rain 68%

Fair or better. Cloud and a rain chance can stretch the morning bite well past breakfast: keep moving baits tied on.

Species guide

The species that matter on Lake Lowell: seasons, structure and how to fish each one. Today's ratings live in the report above.

Largemouth bass illustration

Largemouth bass

Best: spring and fall

The headline act on most American reservoirs. Relates to cover: docks, brush, grass edges and points. Topwater at first light on points and seawalls, then slide out to 12-25 ft brush and points with a Carolina rig, deep crank or drop shot. The bite is dawn, dusk or deep.

Crappie illustration

Crappie

Best: Nov-Mar

Brush piles, bridge pilings and standing timber. The fish fry favorite. Straight down on bridge pilings and deep brush at 15-25 ft. Minnows outfish jigs in hot water; move until the graph shows them stacked.

Catfish (blue, channel) illustration

Catfish (blue, channel)

Good year-round

The most reliable bite on most southern waters. Blues run big; channels fill the cooler. Anchor on 20-30 ft baited holes with punch bait or cut shad. They keep biting through the heat when everything else quits.

White bass illustration

White bass

Best: Mar-May run

River-run spawners and open-water schoolers. Fast limits when you find them. Early schooling action over humps; slabs and small spinners under the birds.

When to come: the Lake Lowell calendar

Activity by species and month, and how the water warms through the year. Tap any cell.

Species activity by month

1 = slow, 5 = peak. Current month highlighted.

J
F
M
A
M
J
J
A
S
O
N
D
Largemouth bass
Crappie
Catfish (blue, channel)
White bass
SlowPeak

Water temperature through the year

Typical surface temperature for this water type; today is around 84 F (estimated, not a reading).

5060708090JanMarMayJulSepNovSep, ~84 F now

Angler reports

Real reports from real anglers, reviewed before publishing. The water log below tracks each day automatically.

No angler reports yet this weekBe the first: your report helps every angler who checks Lake Lowell today, and we feature the best catch of the week.

Water log, last days

Auto-logged from live data
Thu, Sep 3

2/5 Slow. The wind owns today. 24 mph gusts make boat control the real battle. Catfish (blue, channel) led the card at good. High of 69 F, wind to 24 mph.

Wed, Sep 2

3/5 Fair. Fish early or late. Heat pins the bite to the dawn and dusk windows. Catfish (blue, channel) led the card at good. High of 77 F, wind to 18 mph.

Tue, Sep 1

2/5 Slow. The wind owns today. 25 mph gusts make boat control the real battle. Catfish (blue, channel) led the card at good. High of 85 F, wind to 25 mph.

Where roughly, what depth, what bait. Skip anything you want to keep secret.
Only used to send you this water's report each week. No spam, ever.

Before you go

License

Idaho requires a valid fishing license for adults. Buy online from the state agency; one-day options exist for visitors.

Regulations

Idaho license. Bass under standard limits (2 over 20 inches typical statewide rules): check IDFG. Refuge boating season and zone rules apply: verify current Deer Flat maps.

Access

Lower Dam and Upper Dam recreation areas, Gotts Point (seasonal), bank access along both dam faces.

About this water

A 9,000-acre off-channel irrigation reservoir inside Deer Flat NWR at Nampa, Canyon County, Idaho: premier largemouth water.

Fishing Lake Lowell: the full guide

An irrigation lake that over-delivers

Lake Lowell stores Boise River water behind low dams south of Nampa: 9,000 fertile off-channel acres inside the Deer Flat National Wildlife Refuge. Shallow, weedy and bird-rich, it is southwest Idaho’s bass factory: largemouth to twelve pounds live in the smartweed and flooded willows: with channel cats, crappie, bluegill and carp-flats bonus fishing rounding a warm-water card rare for Idaho.

Bass in the weeds

Spring fish flood the flooded brush and smartweed edges as the pool rises: pitch jigs and swim frogs early. Summer builds the classic weed-mat game: punch the mats midday, walk frogs over them mornings, and drag the outside edges (8-14 feet) with Texas rigs when the sun climbs. Drawdown falls concentrate everything along the remaining green: the October frog bite can be the year’s best.

The refuge rhythm

Deer Flat NWR rules shape the calendar: wake-free zones, seasonal waterfowl closures (October-April on much of the water) and a boating season that effectively runs April 15-September 30 for most of the lake: check current maps. The trade is worth it: the protected water grows unpressured giants, and the bird spectacle over an evening topwater session is its own reward.

Nampa logistics

Ramps at Lower Dam (east) and Upper Dam (west) plus Gotts Point serve boats in season: bank and wade access along the dams year-round where refuge rules allow. Afternoon valley wind chops the shallow bowl: mornings fish calm. Nampa and Caldwell wrap the lake with every amenity: this is backyard water for half a million people that still fishes like a secret.

Common questions

How big do Lowell largemouth get?

Ten-pound fish are verified regularly: the refuge’s protection plus weed-rich forage water builds true southern-style giants in Idaho.

When can I actually boat there?

Most water opens to boats mid-April through September: the refuge’s waterfowl mission closes much of the lake in the cold months: bank options remain.

What is the go-to summer pattern?

Frogs over the mats at first light, punching at noon: the smartweed and willow edges concentrate everything that matters.

Is fishing good at Lake Lowell right now?

Check the daily report at the top of this page: it is regenerated every morning from live data. Today's read: Fair. Fish early or late. Heat pins the bite to the dawn and dusk windows.

Nearby waters

Boise River21 miOwyhee River25 miLucky Peak Reservoir31 miPayette River37 miSouth Fork Boise River62 miAnderson Ranch Reservoir63 mi
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