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Rainbow stocking
Lowland lake · Kittitas County · 26.1 acres · 1,491 ft
3,240 rainbows on May 11
4 months agoNaches Hatchery
Fish per pound
Catchables · 7 oz each
2.4
Nothing new since May 11. WDFW usually plants here in November.
2026 so far
11,355
124% of a normal year
Normal year
9,184
average of 11 seasons
Typical size
Catchables
7 oz each
Stocking season
Mar–May, Nov
when the truck comes
This year against a 11-season average
2026normal
Recent plants
| Date | Species | Number | Fish/lb | Size |
|---|---|---|---|---|
| May 11 | Rainbow | 3,240 | 2.4 | Catchables · 7 oz each |
| Mar 25 | Rainbow | 3,080 | 2.2 | Catchables · 7 oz each |
| Mar 16 | Rainbow | 1,610 | 2.3 | Catchables · 7 oz each |
| Feb 24 | Rainbow | 320 | 0.80 | Jumbos · 1.25 lb each |
| Feb 24 | Rainbow | 3,105 | 2.3 | Catchables · 7 oz each |
| Oct 31 | Rainbow | 102 | 0.20 | Trophies · 5 lb each |
| Oct 31 | Rainbow | 48 | 0.10 | Trophies · 10 lb each |
| May 13 | Rainbow | 3,000 | 2.4 | Catchables · 7 oz each |
75 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 | ||||||||||||
| Bass | ||||||||||||
| Pumpkinseed Sunfish | ||||||||||||
| Yellow Perch |
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 Mattoon Lake fished
No catch reports yet for this water.
Currently
56°
Clearfeels like 53°
Tue
Favorable
66° 47°
wind 5 kt · 6% rain
Wed
Favorable
76° 46°
wind 9 kt · 1% rain
Thu
Favorable
82° 50°
wind 8 kt · 1% rain
Fri
Favorable
81° 55°
wind 11 kt · 0% rain
Sat
Favorable
80° 53°
wind 11 kt · 0% rain
Sun
Favorable
82° 57°
wind 9 kt · 0% rain
Mon
Good
77° 55°
wind 20 kt · 1% rain
The current regulation for Mattoon Lake 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 Mattoon Lake?
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Wind now
5mph
WNW · gusting 5
Gusts · 12h
12mph
holding or building
wind mph gusts