Island Park Reservoir

Island Park Reservoir

Island Park, Fremont County, ID
12mi²
1920.00ft
Directions
Lake Information

Island Park Reservoir is a vast and scenic lake located in Fremont County, Idaho. Anglers who visit the lake can expect to catch a variety of fish species, including Rainbow Trout, Cutthroat Trout, Kokanee Salmon, Yellow Perch, and Bluegill. This lake covers an area of 7,545 acres, providing ample space for fishing enthusiasts to explore and enjoy the breathtaking views. With its crystal clear waters and serene surroundings, Island Park Reservoir is an ideal destination for anyone who loves fishing or wants to escape the hustle and bustle of city life. Whether you're an experienced angler or a beginner, Island Park Reservoir offers an excellent opportunity to catch a variety of fish and enjoy a peaceful atmosphere. So, pack your fishing gear and head to this magnificent lake for a memorable fishing experience. You're sure to have a great time.

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Current Conditions

33°F°
Feels like 15°F°
Windy
Today's High
59°F°
Today's Low
32°F°

Water Temperature

50°F
Updated: (May 4)
Sign in to contribute temps.

Current water temperature for Island Park Reservoir is 50°F.

Current Snapshot

Wind16 mph NNE (Gust 40 mph)
Pressure
29.99 inHg
Visibility2 mi
Humidity87%
Cloud Cover100%

Forecast: Tuesday, May 6

Day 1 of 9

Hourly Insights

7 AM
34°F°
10 AM
44°F°
1 PM
54°F°
4 PM
58°F°

Temperature

High
59°F°
Low
32°F°

Precipitation

Chance0%
Amount0.00"
Typeclear

Wind

8mph
Avg Speed
Gusts up to
39mph
CalmModerateStrong
Max Speed16 mph

Sun, Moon & UV

Sunrise12:08 PM
Sunset2:36 AM
Moon PhasewaxingGibbous
Max UV Index6 (High)

Solunar Fishing Forecast

Action Rating
3/5

Todays action is rated a 3 (scale is 0 thru 5, 5 is the best)

Major Times (Best)

3:05 AM - 5:35 AM

11:49 AM - 2:19 PM

Minor Times (Good)

8:24 PM - 9:54 PM

9:17 AM - 10:47 AM

Outlook for Tuesday at Island Park Reservoir

Expect temperatures ranging from 32°F to 59°F. Skies look partly cloudy with little chance of precipitation. Winds will be averaging 8 mph, with potential gusts reaching up to 39 mph. The maximum UV index will be 6 (High), so plan sun protection accordingly. For anglers, today's fishing action is rated 3/5 (Todays action is rated a 3 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 3:05 AM and 11:49 AM, or try the minor windows near 8:24 PM and 9:17 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Island Park Reservoir.

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May 4th 2025

Lake Information

Elevation
1920 ft
Area
12 mi²
Coordinates
44.421, -111.402

Weather Forecast

Tuesday

59°F
32°F

Wednesday

63°F
36°F

Thursday

66°F
40°F

Friday

68°F
39°F

Saturday

74°F
42°F

Sunday

71°F
46°F

Monday

61°F
45°F

Tuesday

62°F
38°F

Wednesday

51°F
37°F
Tuesday - 5/6/2025
59°F
32°F
12am
34°F
50°F
30.04 hPa
16 mph
NNE
G: 39 mph
2am
33°F
50°F
30.03 hPa
14 mph
NNE
G: 32 mph
4am
33°F
50°F
30.06 hPa
12 mph
NNE
G: 28 mph
6am
32°F
50°F
30.07 hPa
12 mph
NNE
G: 27 mph
8am
36°F
50°F
30.08 hPa
12 mph
NNE
G: 28 mph
10am
44°F
50°F
30.08 hPa
12 mph
NE
G: 26 mph
12pm
51°F
50°F
30.06 hPa
8 mph
ENE
G: 19 mph
2pm
56°F
50°F
30.00 hPa
5 mph
ENE
G: 12 mph
4pm
58°F
50°F
29.97 hPa
4 mph
NE
G: 9 mph
6pm
58°F
50°F
29.95 hPa
4 mph
N
G: 9 mph
8pm
53°F
50°F
29.98 hPa
4 mph
N
G: 8 mph
10pm
45°F
50°F
30.05 hPa
4 mph
NNE
G: 8 mph

Water Temperature History

Trends for Island Park Reservoir

Current Temp

Sign in to view

Latest recorded surface temperature.

Lowest in Period

34°F

On Jan 22

Coldest point in the Last 12 Months.

Average in Period

48°F

Typical temp during the Last 12 Months.

Temperature Trend: Last 12 Months

Surface temperature over the selected period.

Key Observations (Last 12 Months)

  • Warmest avg: July (70°F).
  • Coolest avg: January (34°F).
  • Rapid warming often occurs: June → July (+10°F).
  • Sharpest cooling trend: September → October (-17°F).

Weather Forecast

Wind speed and pressure trends

Hourly Wind Forecast

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm010203040

Wind Direction

27°

Pressure

1017 mb

Cloud Cover

98%

Visibility

15 miles

Daily Pressure Forecast

TueWedThuFriSatSunMonTueWed0.008.8617.7226.5835.44
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Frequently Asked Questions About Island Park Reservoir

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