Potholes Reservoir Fishing Forecast

47.02° N, 119.31° W

Fishing conditions for Potholes Reservoir

Today Tomorrow Jul 27 Jul 28 Jul 29 Jul 30
sunrise 04:28
sunset 19:39

Biting score

100%
Great biting conditions

The best time for fishing is all day long

  • 02:00
  • 05:00
  • 08:00
  • 11:00
  • 14:00
  • 17:00
  • 20:00
  • 23:00
  • ClearSkyNight
  • ClearSkyNight
  • ClearSkyDay
  • ClearSkyDay
  • ClearSkyDay
  • ClearSkyDay
  • ClearSkyNight
  • ClearSkyNight
  • 65%
  • 47%
  • 52%
  • 52%
  • 54%
  • 57%
  • 73%
  • 100%
  • Good biting conditions
  • OK biting conditions
  • OK biting conditions
  • OK biting conditions
  • OK biting conditions
  • OK biting conditions
  • Good biting conditions
  • Great biting conditions

Now, July 25
9:02 PM

ClearSkyNight
24° FEELS LIKE20°
wind
8.8 m/s GUSTS13.2 m/s
100.9 kPa FALLING PRESSURE
humidity
31%
uv index
0low
cloud cover
28%
visibility
24km
moon rise
16:38AM
moon
moonNew
  • Potholes Reservoir Solunar Fishing Activity Report for Today

    Current fishing activity in Potholes Reservoir, United States, according to the solunar forecast, is high, which leads to a good bite score.

    Over the next 6 days, the highest fish activity is expected on Today (11 PM peak), Wednesday (2 AM peak), and Thursday (2 AM peak)—making these the best times to go fishing in Potholes Reservoir.

  • Air conditions

    The air temperature is 75°F (24°C) . Sunrise today: 04:28 AM, sunset: 07:39 PM. The weather conditions indicate the sky is mostly clear.

    The UV index is currently 0 (Low) .

    The wind is coming from the north at 19.7 mph (8.8 m/s), with gusts reaching 29.5 mph (13.2 m/s). Atmospheric pressure is 29.8 inHg (757 mmHg).

  • Moon Phases

    The moon phase is currently New, with moonrise at 4:38 PM and moonset at 12:21 AM.

About this spot

  • Potholes Reservoir Solunar Fishing Activity Report for Today

    Current fishing activity in Potholes Reservoir, United States, according to the solunar forecast, is high, which leads to a good bite score.

    Over the next 6 days, the highest fish activity is expected on Today (11 PM peak), Wednesday (2 AM peak), and Thursday (2 AM peak)—making these the best times to go fishing in Potholes Reservoir.

  • Air conditions

    The air temperature is 75°F (24°C) . Sunrise today: 04:28 AM, sunset: 07:39 PM. The weather conditions indicate the sky is mostly clear.

    The UV index is currently 0 (Low) .

    The wind is coming from the north at 19.7 mph (8.8 m/s), with gusts reaching 29.5 mph (13.2 m/s). Atmospheric pressure is 29.8 inHg (757 mmHg).

  • Moon Phases

    The moon phase is currently New, with moonrise at 4:38 PM and moonset at 12:21 AM.

Archive

About this spot

Reviews 2

  • WA
    Windy AI 08 July 2026
    Potholes Reservoir (O'Sullivan Reservoir) in Grant County, Washington, is a 28,000-acre Columbia Basin Project reservoir supporting excellent largemouth bass, smallmouth bass, walleye, yellow perch, and black crappie fishing. Spot Features: Potholes Reservoir in Grant County, Washington (also known as O'Sullivan Reservoir), is a 28,000-acre reservoir in the Columbia Basin Project south of Moses Lake, with excellent largemouth bass, smallmouth bass, walleye, yellow perch, and black crappie fishing in the beautiful eastern Washington semi-arid landscape. Seasonality: Largemouth bass and smallmouth bass are the primary targets in Potholes Reservoir in Grant County, Washington, year-round, with largemouth most active in spring and fall and smallmouth bass in spring and summer. Walleye are spring and fall species. Yellow perch and black crappie are summer and fall fish.
  • G
    Guest 01 September 2025
    Some primitive areas to camp. State park is nice for shade and a shower. Gas station store open 4 am to 10pm. Good, inexpensive food there, too. They have a grill and even an ice cream shop. Better tackle selection to the east a mile or so at the Mardon where there is also a restaurant, ice, etc.
Guest:

Nearest Meteostations

Closest meteostation (15.45km):

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