Water level
145.38ft (gage datum)
+1.56 ft in 7 daysOct 14Oct 19Oct 25
Oct 14Oct 19Oct 25
Reading from Oct 26, 2026.
Island Park Reservoir was at 145.38 ft on the gage on October 26, rising 1.56 ft over the past week.
IdahoReservoir, 7,550 acres, Fremont County
Island Park Reservoir conditions today
Right now on Island Park
loading
Best window
0pm to 0pm
score
Wind
00kt
Gusts 00
Direction
NE
Blowing from
Air temp
00°F
High
Rain
Dry%
next 6 hours
Water level
145.38ft
Up 1.56 ft this week
Sailing
CheckingReading the forecast
Kayak and SUP
CheckingReading the forecast
Power boating
CheckingReading the forecast
Fishing
CheckingReading the forecast
Hour by hour
Next 24 hours
Wind and gusts0 to 30+ ktScoreGood, caution, stay ashoreNightBest windowArrows point where the wind blows to.
Outlook. Monday: S wind 1 to 7 kt, gusts to 16 kt, high near 48°F, 53% chance of rain. Tuesday: SSW wind 6 to 12 kt, gusts to 25 kt, high near 38°F, 52% chance of rain.
7-day wind forecastLive radar
Loads when you scroll here
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LightHeavy
Last hour of NOAA MRMS radar, 1 km resolution. Map data © OpenStreetMap contributors, OpenMapTiles, OpenFreeMap.
Lake facts
- Type
- Reservoir
- State
- Idaho
- County
- Fremont County
- Surface area
- 7,550 acres
- USGS gauge
- 13042010, Island Park Dam near Island Park ID
- Coordinates
- 44.4188° N, 111.3963° W
Background reading: Island Park Reservoir on Wikipedia
About Island Park Reservoir
Island Park Reservoir is a 7,550-acre reservoir in Fremont County, Idaho.
Water level on this page comes from USGS gauge 13042010 (Island Park Dam near Island Park ID). Wind, gusts and rain come from the National Weather Service forecast grid that covers the water.
Mid-sized lakes like this one tend to have shifty, gusty wind near shore and steadier pressure in the middle, which is why gust spread matters as much as average speed. Reservoir levels move with releases and inflow, so ramps and beaches can change week to week. The water level page tracks that day by day.
The go or no-go calls above are a starting point, not a guarantee. Read how we score conditions, and always check local rules and posted warnings before you launch.
Island Park Reservoir questions
Is it windy on Island Park Reservoir today?
The National Weather Service forecast for the lake from October 26: Monday: S wind 1 to 7 kt, gusts to 16 kt, high near 48°F, 53% chance of rain. The panel at the top of this page refreshes the current wind, gusts and direction when you open it and turns them into a call for sailing, paddling, power boating and fishing.
What is the water level at Island Park Reservoir right now?
Island Park Reservoir was at 145.38 ft on the gage on October 26, rising 1.56 ft over the past week.
How big is Island Park Reservoir?
Island Park Reservoir covers about 7,550 acres (12 square miles) of surface water.
Nearby lakes
If Island Park is blown out, these are the closest alternatives. Tap through for their conditions.