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Rainbow stocking
Lowland lake · Grant County · 17.6 acres · 982 ft
7,825 rainbows on Apr 28
5 months agoColumbia Basin Hatchery
Fish per pound
Fry · under 1 oz each
110
Planted small, to grow on — these are not catchable yet. Last catchable plant Apr 2.
2026 so far
7,825
99% of a normal year
Normal year
7,893
average of 11 seasons
Typical size
Fry
under 1 oz each
Stocking season
May
when the truck comes
This year against a 11-season average
2026normal
Recent plants
| Date | Species | Number | Fish/lb | Size |
|---|---|---|---|---|
| Apr 28 | Rainbow | 7,825 | 110 | Fry · under 1 oz each |
| May 2 | Rainbow | 7,800 | 98 | Fry · under 1 oz each |
| May 1 | Rainbow | 7,800 | 98 | Fry · under 1 oz each |
| May 1 | Rainbow | 6,043 | 127 | Fry · under 1 oz each |
| Mar 23 | Rainbow | 1,757 | 61 | Fry · under 1 oz each |
| May 9 | Rainbow | 7,800 | 113 | Fry · under 1 oz each |
| May 12 | Rainbow | 7,800 | 87 | Fry · under 1 oz each |
| Apr 2 | Rainbow | 750 | 2.5 | Catchables · 6 oz each |
14 rainbow releases on record since 2015 · from WDFW's fish plants data, as published.
This lake on WDFWWDFW fishing prospects calendar
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainbow Trout |
quiet → best this month
WDFW rates rainbow trout best in April through June.
WDFW draws one calendar per species for the whole state, so it shows the season's shape rather than this lake's own record. Check the rules for when each species is open here. This lake on WDFW
be the first to say how Heart Lake (Grant County) fished
No catch reports yet for this water.
Currently
57°
Overcastfeels like 54°
Tue
Favorable
67° 50°
wind 8 kt · 9% rain
Wed
Favorable
79° 48°
wind 10 kt · 2% rain
Thu
Favorable
85° 53°
wind 12 kt · 4% rain
Fri
Favorable
81° 60°
wind 9 kt · 2% rain
Sat
Favorable
83° 58°
wind 6 kt · 0% rain
Sun
Good
85° 58°
wind 5 kt · 0% rain
Mon
Favorable
84° 56°
wind 9 kt · 0% rain
The current regulation for Heart Lake (Grant County) could not be confidently verified from a structured source, so this dashboard won't guess. Check the official WDFW sport fishing rules before fishing.
rules are shown exactly as published and cover every species at this location — they can change at any time, so always confirm with WDFW before fishingWant to know the best time to fish for rainbow trout this week at Heart Lake (Grant County)?
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Wind now
6mph
N · gusting 12
Gusts · 12h
17mph
holding or building
wind mph gusts