Skip to forecast
Search a place

Observed 7:55 PM MDT at KRXE

Island Park, ID weather

Clear and 43°6°, freeze watch tonight, low 23°−5°.

Today: low 22°−6° (likely 22°−6° to 26°−3°), high 44°7° (likely 42°6° to 46°8°).

Mostly agree

Now 43°6°

Clear

Wind
Calm
Up to 6 mph10 km/h through 8 AM
Dew point
37°3°
Comfortable · down to 26°−3° by 9 PM (dry)
UV tomorrow
4Moderate
Moderate 12–5 PM · peak 4
Pressure
30.2 inHg1023 hPa
Rising slowly · +0.03 inHg+0.9 hPa in 3 h

Next 2 hours

Light snow now, through the next 2 hours.

  1. 12:00 AM: light snow
  2. 12:15 AM: dry
  3. 12:30 AM: dry
  4. 12:45 AM: dry
  5. 1:00 AM: dry
  6. 1:15 AM: dry
  7. 1:30 AM: dry
  8. 1:45 AM: dry

Next 48 hours

Good hours for
  • Hard freeze until 10 AM tomorrow (low 23°−5°)
  • Above 40°4° tomorrow by noon
  • Drops 12°7° tomorrow 5–8 PM (49°9° → 37°3°)
  • Hard freeze tomorrow night 9 PM–10 AM (low 26°−3°)
  • Rain Monday night from 6 PM (50%, 0.06 in1.5 mm)
  1. TonightDown to 24°−4° by 4 AM · freezing, low 24°−4° · Clear
  2. Tomorrow morningUp to 38°3° by 11 AM · freezing, low 23°−5° · Clear
  3. Tomorrow afternoonUp to 51°11° by 3 PM · Clear
  4. Tomorrow nightDown to 27°−3° by 2 AM · freezing, low 27°−3° · Partly cloudy
  5. Monday morningUp to 40°4° by 11 AM · freezing, low 26°−3° · Cloudy
  6. Monday afternoonNear 44°7° · Mostly cloudy
Hourly forecast, next 48 hours, in the place's local time
HourConditionsTemperatureFeels likePrecipitationWindHumidityCloud coverUV index
Sat 8pClear32°0° (likely 32°0° to 35°2°)32°0°0%1 mph2 km/h from N, gusts 4 mph7 km/h83%9%0
Sat 9pClear30°−1° (likely 30°−1° to 35°2°)30°−1°0%2 mph3 km/h from N, gusts 3 mph4 km/h86%10%0
Sat 10pClear29°−2° (likely 28°−2° to 34°1°)25°−4°0%3 mph5 km/h from N, gusts 4 mph6 km/h87%12%0
Sat 11pMostly clear28°−2° (likely 27°−3° to 33°1°)24°−4°0%3 mph5 km/h from N, gusts 5 mph8 km/h91%16%0
Sun 12aMostly clear27°−3° (likely 26°−3° to 33°1°)23°−5°0%3 mph5 km/h from N, gusts 5 mph8 km/h93%20%0
Sun 1aMostly clear26°−3° (likely 26°−3° to 33°1°)22°−6°0%3 mph5 km/h from N, gusts 5 mph8 km/h96%17%0
Sun 2aMostly clear25°−4° (likely 25°−4° to 33°1°)19°−7°0%5 mph8 km/h from N, gusts 5 mph8 km/h96%17%0
Sun 3aMostly clear25°−4° (likely 25°−4° to 33°1°)19°−7°0%5 mph8 km/h from N, gusts 5 mph8 km/h94%16%0
Sun 4aMostly clear24°−4° (likely 24°−4° to 33°1°)18°−8°0%5 mph8 km/h from N, gusts 5 mph8 km/h93%15%0
Sun 5aMostly clear24°−4° (likely 24°−4° to 32°0°)18°−8°0%5 mph8 km/h from NNE, gusts 6 mph10 km/h91%15%0
Sun 6aMostly clear24°−4° (likely 24°−4° to 33°1°)18°−8°0%5 mph8 km/h from NNE, gusts 6 mph9 km/h93%14%0
Sun 7aMostly clear23°−5° (likely 23°−5° to 33°1°)16°−9°0%6 mph10 km/h from N, gusts 6 mph9 km/h95%13%0
Sun 8aSunny23°−5° (likely 23°−5° to 33°1°)16°−9°0%6 mph10 km/h from N, gusts 6 mph9 km/h96%14%0
Sun 9aMostly sunny26°−3° (likely 26°−3° to 34°1°)19°−7°0%6 mph10 km/h from NNW, gusts 6 mph9 km/h95%13%0
Sun 10aSunny33°1° (likely 33°1° to 38°3°)30°−1°0%3 mph5 km/h from N, gusts 5 mph8 km/h88%6%1
Sun 11aSunny38°3° (likely 38°3° to 42°6°)36°2°0%3 mph5 km/h from N, gusts 6 mph10 km/h74%3%2
Sun 12pSunny44°7° (likely 43°6° to 47°8°)42°6°0%3 mph5 km/h from N, gusts 6 mph10 km/h59%0%4
Sun 1pSunny47°8° (likely 45°7° to 50°10°)47°8°0%2 mph3 km/h from N, gusts 5 mph8 km/h52%0%4
Sun 2pSunny49°9° (likely 47°8° to 52°11°)49°9°0%1 mph2 km/h from SSW, gusts 6 mph10 km/h45%0%4
Sun 3pSunny51°11° (likely 47°8° to 53°12°)51°11°0%1 mph2 km/h from S, gusts 6 mph10 km/h43%2%4
Sun 4pSunny50°10° (likely 48°9° to 52°11°)50°10°0%2 mph3 km/h from SSW, gusts 6 mph9 km/h42%4%3
Sun 5pSunny49°9° (likely 47°8° to 50°10°)49°9°0%2 mph3 km/h from SSW, gusts 4 mph6 km/h47%5%2
Sun 6pClear44°7° (likely 43°6° to 46°8°)44°7°0%0 mph0 km/h, gusts 4 mph7 km/h57%0%1
Sun 7pClear37°3° (likely 37°3° to 42°6°)37°3°0%0 mph0 km/h, gusts 5 mph7 km/h72%0%0
Sun 8pClear34°1° (likely 34°1° to 40°4°)34°1°0%0 mph0 km/h, gusts 7 mph12 km/h81%3%0
Sun 9pClear32°0° (likely 32°0° to 39°4°)32°0°0%0 mph0 km/h, gusts 7 mph12 km/h85%34%0
Sun 10pClear31°−1° (likely 31°−1° to 37°3°)31°−1°0%0 mph0 km/h, gusts 6 mph10 km/h87%34%0
Sun 11pClear29°−2° (likely 29°−2° to 36°2°)29°−2°0%0 mph0 km/h, gusts 5 mph8 km/h92%16%0
Mon 12aClear29°−2° (likely 29°−2° to 36°2°)29°−2°0%1 mph2 km/h from ENE, gusts 4 mph6 km/h92%39%0
Mon 1aClear28°−2° (likely 28°−2° to 36°2°)28°−2°0%1 mph2 km/h from ENE, gusts 2 mph4 km/h96%40%0
Mon 2aPartly cloudy27°−3° (likely 27°−3° to 36°2°)27°−3°0%1 mph2 km/h from ENE, gusts 2 mph4 km/h96%45%0
Mon 3aPartly cloudy27°−3° (likely 27°−3° to 36°2°)27°−3°0%2 mph3 km/h from E, gusts 2 mph3 km/h93%48%0
Mon 4aPartly cloudy27°−3° (likely 27°−3° to 36°2°)27°−3°0%2 mph3 km/h from E, gusts 3 mph4 km/h93%49%0
Mon 5aCloudy27°−3° (likely 27°−3° to 36°2°)27°−3°0%2 mph3 km/h from E, gusts 2 mph3 km/h91%70%0
Mon 6aCloudy26°−3° (likely 26°−3° to 36°2°)26°−3°0%2 mph3 km/h from ESE, gusts 3 mph4 km/h92%80%0
Mon 7aCloudy27°−3° (likely 27°−3° to 36°2°)27°−3°0%2 mph3 km/h from ESE, gusts 4 mph7 km/h96%86%0
Mon 8aCloudy29°−2° (likely 29°−2° to 35°2°)29°−2°0%2 mph3 km/h from ESE, gusts 5 mph7 km/h97%92%0
Mon 9aCloudy31°−1° (likely 31°−1° to 36°2°)31°−1°0%2 mph3 km/h from ESE, gusts 4 mph7 km/h94%95%0
Mon 10aCloudy35°2° (likely 35°2° to 40°4°)35°2°0%2 mph3 km/h from ESE, gusts 9 mph14 km/h87%97%1
Mon 11aCloudy40°4° (likely 40°4° to 44°7°)40°4°0%2 mph3 km/h from ESE, gusts 11 mph17 km/h78%89%2
Mon 12pCloudy44°7° (likely 44°7° to 45°7°)39°4°5%8 mph13 km/h from S, gusts 14 mph23 km/h69%92%3
Mon 1pCloudy46°8° (likely 46°8° to 47°8°)42°6°5%8 mph13 km/h from S, gusts 18 mph29 km/h64%71%3
Mon 2pMostly cloudy47°8° (likely 47°8° to 49°9°)43°6°5%8 mph13 km/h from S, gusts 19 mph31 km/h60%58%4
Mon 3pMostly cloudy47°8° (likely 47°8° to 49°9°)43°6°5%9 mph14 km/h from SSW, gusts 21 mph33 km/h60%57%4
Mon 4pMostly cloudy46°8° (likely 46°8° to 49°9°)41°5°5%9 mph14 km/h from SSW, gusts 20 mph32 km/h62%62%3
Mon 5pCloudy44°7° (likely 44°7° to 48°9°)39°4°5%9 mph14 km/h from SSW, gusts 18 mph29 km/h67%55%2
Mon 6pRain41°5° (likely 41°5° to 46°8°)39°4°50%, 0.03 in0.8 mm3 mph5 km/h from S, gusts 10 mph16 km/h73%56%1
Mon 7pRain38°3° (likely 35°2° to 43°6°)36°2°50%, 0.03 in0.8 mm3 mph5 km/h from S, gusts 8 mph13 km/h81%74%0

Days ahead

Shaded: typical range for these dates (1991–2020)
  1. Today, Oct 24. Mostly sunny. High 44°7°, low 22°−6°. Typical 47°8° / 22°−6°. Rain, 40% chance. Mostly agree.
    1. Evening

      6 PM–midnight

      Clear, 32°0°

      Dry

    2. Overnight

      midnight–6 AM

      Mostly clear, 24°−4°

      Dry

    Official NWS forecast

    Tonight: Mostly clear. Low around 22, with temperatures rising to around 24 overnight. North wind 1 to 5 mph.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    42°6°–46°8°
    Low, likely
    22°−6°–26°−3°
    Typical high / low
    47°8° / 22°−6°
    Wind
    19 mph30 km/h, gusts 26 mph42 km/h
    UV peak
    4
  2. Tomorrow, Oct 25. Mostly sunny. High 51°11°, low 25°−4°. Typical 46°8° / 21°−6°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Mostly sunny, 23°−5°

      Dry

    2. Afternoon

      noon–6 PM

      Sunny, 51°11°

      Dry

    3. Evening

      6 PM–midnight

      Clear, 34°1°

      Dry

    4. Overnight

      midnight–6 AM

      Partly cloudy, 27°−3°

      Dry

    Official NWS forecast

    Day: Sunny. High near 51, with temperatures falling to around 49 in the afternoon. North northwest wind 1 to 6 mph.

    Night: Partly cloudy. Low around 25, with temperatures rising to around 27 overnight. East wind around 2 mph.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    48°9°–53°12°
    Low, likely
    25°−4°–32°0°
    Typical high / low
    46°8° / 21°−6°
    Wind
    6 mph9 km/h, gusts 13 mph20 km/h
    UV peak
    4
  3. Monday, Oct 26. Mostly cloudy. High 47°8°, low 24°−4°. Typical 46°8° / 21°−6°. Dry. Forecasts agree.
    1. Morning

      6 AM–noon

      Cloudy, 29°−2°

      Dry

    2. Afternoon

      noon–6 PM

      Mostly cloudy, 47°8°

      Dry

    3. Evening

      6 PM–midnight

      Rain, 39°4°

      70% chance · 0.13 in3.2 mm

    4. Overnight

      midnight–6 AM

      Rain, 33°0°

      90% chance · 0.9 in2.4 cm

    Official NWS forecast

    Day: Partly sunny, with a high near 47. South wind 2 to 9 mph, with gusts as high as 20 mph.

    Night: A chance of rain before midnight, then rain and snow. Mostly cloudy, with a low around 24. South southeast wind 3 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Forecasts agreeIndependent forecasts are close; the range is narrow.

    High, likely
    47°8°–49°9°
    Low, likely
    24°−4°–35°2°
    Typical high / low
    46°8° / 21°−6°
    Wind
    14 mph22 km/h, gusts 36 mph57 km/h
    UV peak
    4
  4. Tuesday, Oct 27. Snow. High 38°3°, low 21°−6°. Typical 45°7° / 21°−6°. Snow 0–4 in0–10 cm, 80% chance. Mostly agree.
    1. Morning

      6 AM–noon

      Snow, 31°−1°

      90% chance · 0.3 in0.7 cm

    2. Afternoon

      noon–6 PM

      Snow, 36°2°

      70% chance · 0.2 in0.4 cm

    3. Evening

      6 PM–midnight

      Snow, 33°1°

      50% chance · 0.02 in0.4 mm

    4. Overnight

      midnight–6 AM

      Snow, 29°−2°

      30% chance

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Snow. Cloudy, with a high near 38. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Night: A chance of snow before midnight. Mostly cloudy, with a low around 21. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    34°1°–38°3°
    Low, likely
    21°−6°–31°−1°
    Typical high / low
    45°7° / 21°−6°
    Wind
    16 mph25 km/h, gusts 32 mph51 km/h
    UV peak
    2
  5. Wednesday, Oct 28. Mostly cloudy. High 42°6°, low 23°−5°. Typical 44°7° / 20°−7°. Dry. Mostly agree.
    1. Morning

      6 AM–noon

      Cloudy, 29°−2°

      Dry

    2. Afternoon

      noon–6 PM

      Cloudy, 41°5°

      Dry

    3. Evening

      6 PM–midnight

      Mostly clear, 31°−1°

      Dry

    4. Overnight

      midnight–6 AM

      Partly cloudy, 29°−2°

      Dry

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Partly sunny, with a high near 42.

    Night: Partly cloudy, with a low around 23.

    Mostly agreeIndependent forecasts are fairly close; small surprises are possible.

    High, likely
    38°3°–42°6°
    Low, likely
    22°−6°–31°−1°
    Typical high / low
    44°7° / 20°−7°
    Wind
    13 mph21 km/h, gusts 26 mph41 km/h
    UV peak
    4
  6. Thursday, Oct 29. Snow. High 44°7°, low 26°−3°. Typical 44°7° / 20°−7°. Snow 0–2 in0–5 cm, 50% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Cloudy, 30°−1°

      30% chance

    2. Afternoon

      noon–6 PM

      Sunny, 42°6°

      50% chance · 0.2 in0.4 cm

    3. Evening

      6 PM–midnight

      Cloudy, 36°2°

      50% chance · 0.2 in0.4 cm

    4. Overnight

      midnight–6 AM

      Cloudy, 33°1°

      60% chance · 0.1 in0.3 cm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: A chance of snow before noon, then a chance of rain and snow. Partly sunny, with a high near 44. Chance of precipitation is 50%.

    Night: Rain and snow likely. Mostly cloudy, with a low around 26. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    40°4°–45°7°
    Low, likely
    22°−6°–31°−1°
    Typical high / low
    44°7° / 20°−7°
    Wind
    12 mph19 km/h, gusts 27 mph44 km/h
    UV peak
    4
  7. Friday, Oct 30. Snow. High 44°7°, low 25°−4°. Typical 44°7° / 20°−7°. Snow 0–1 in0–3 cm, 60% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Snow, 34°1°

      60% chance · 0.07 in1.7 mm

    2. Afternoon

      noon–6 PM

      Drizzle, 39°4°

      60% chance · 0.1 in2.4 mm

    3. Evening

      6 PM–midnight

      Showers, 36°2°

      50% chance · 0.1 in2.5 mm

    4. Overnight

      midnight–6 AM

      Snow, 33°0°

      40% chance · 0.2 in0.6 cm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Rain and snow likely. Mostly cloudy, with a high near 44. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Night: Rain and snow likely. Mostly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    37°3°–44°7°
    Low, likely
    25°−4°–32°0°
    Typical high / low
    44°7° / 20°−7°
    Wind
    7 mph11 km/h, gusts 34 mph54 km/h
    UV peak
    2
  8. Saturday, Oct 31. Snow. High 42°6°, low 26°−3°. Typical 43°6° / 20°−7°. Snow 0–2 in0–5 cm, 60% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Snow, 33°0°

      30% chance · 0.2 in0.4 cm

    2. Afternoon

      noon–6 PM

      Snow, 35°2°

      30% chance · 0.2 in0.4 cm

    3. Evening

      6 PM–midnight

      Cloudy, 29°−1°

      30% chance · 0.02 in0.6 mm

    4. Overnight

      midnight–6 AM

      Cloudy, 23°−5°

      20% chance · 0.3 in0.8 cm

    Hours this far out come from computer models only.

    Official NWS forecast

    Day: Snow likely. Mostly cloudy, with a high near 42. Chance of precipitation is 60%. New snow accumulation of less than half an inch possible.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    33°1°–42°6°
    Low, likely
    19°−7°–34°1°
    Typical high / low
    43°6° / 20°−7°
    Wind
    10 mph16 km/h, gusts 25 mph40 km/h
    UV peak
    3
  9. Sunday, Nov 1. Snow. High 36°2°, low 23°−5°. Typical 42°6° / 19°−7°. Snow 0–2 in0–5 cm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Snow, 24°−5°

      20% chance · 0.1 in0.4 cm

    2. Afternoon

      noon–6 PM

      Sunny, 33°0°

      20% chance

    3. Evening

      6 PM–midnight

      Clear, 26°−4°

      20% chance · 0.2 in0.5 cm

    4. Overnight

      midnight–6 AM

      Clear, 22°−5°

      20% chance · 0.2 in0.5 cm

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    29°−2°–42°6°
    Low, likely
    16°−9°–30°−1°
    Typical high / low
    42°6° / 19°−7°
    Wind
    10 mph17 km/h, gusts 27 mph43 km/h
    UV peak
    4
  10. Monday, Nov 2. Snow. High 35°2°, low 21°−6°. Typical 42°6° / 19°−7°. Snow 0–1 in0–3 cm, 30% chance. Forecasts differ.
    1. Morning

      6 AM–noon

      Sunny, 24°−4°

      20% chance

    2. Afternoon

      noon–6 PM

      Sunny, 34°1°

      30% chance · 0.01 in0.3 mm

    3. Evening

      6 PM–midnight

      Clear, 26°−4°

      30% chance

    Hours this far out come from computer models only.

    The National Weather Service writes about seven days ahead; this day is our model forecast only.

    Forecasts differIndependent forecasts disagree; expect changes and plan for the range.

    High, likely
    29°−2°–41°5°
    Low, likely
    18°−8°–26°−3°
    Typical high / low
    42°6° / 19°−7°
    Wind
    10 mph15 km/h, gusts 26 mph42 km/h
    UV peak
    4

The outlook

  1. Today

    Dry, high 44°, low 22°.

  2. Tomorrow

    Dry, high 51°, low 25°, warming up.

  3. Monday

    Dry, high 47°, low 24°, cooling off.

  4. Rest of week

    Highs 35–44°; chance of precipitation on Tuesday, Thursday, Friday, Saturday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (PIH) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue
Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Eastern Idaho Reservoirs at Island Park

8.5 mi
Below flood stage
Level
6283 ft

Forecast peak 6285 ft Tue 5 AM

Reading from Sat 6:45 PM · NWS gauge page

Henrys Fork near Lake

4.2 mi
Level
4.4 ft
Flow
under 1 cfs

Reading from Sat 6:45 PM · NWS gauge page

Eastern Idaho Reservoirs at Henrys Lake

4.4 mi
Below flood stage
Level
2.9 ft

Reading from Sat 7:30 PM · NWS gauge page

Henrys Fork near Island Park

8.6 mi
Level
2.1 ft
Flow
90 cfs

Reading from Sat 6:45 PM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Pipes: watch the cold

Tonight’s low: 23°−5°

Overnight low near 23°F — not yet at drip-the-faucets cold, but worth watching if it's forecast to drop further.

Heating this week

About 73% less heating than a typical week.

This week 60Typical 225

Heating degree days, base 65°F

Heat-pump hours, next 7 days

h below 47°F
43
h below 17°F
0
h below 5°F
0

47, 17 and 5°F are the test points heat pumps are rated at. About 14 hours are near freezing and damp, when outdoor units defrost more often.

Comfort

Dry air outside (dew point 37°F).

Open the windows?

No stretch in the next few days is comfortable enough outside, by temperature, dew point and air quality.

Is this typical?

Island Park · official normals 1991–2020 · records 1937–2026

Oct 24, today vs a typical year

Today’s expected high is 3°2° colder than typical.

Normal high / low
47°8° / 22°−6°
Forecast high / low
44°7° / 22°−6°
Record high
66°19° in 2005
Record low
1°−17° in 2020

Last 7 days vs normal

  1. —MonOct 19
  2. —TueOct 20
  3. —WedOct 21
  4. —ThuOct 22
  5. —FriOct 23
  6. —SatOct 24
  7. —SunOct 25

Island Park weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Sunrise 7:52 AM, sunset 6:25 PM.

Daylight
10 h 34 min
Losing 2 min 53 s a day; shortest Dec 21, 1 h 44 min less
Golden hour
5:45–6:44 PM
Morning 7:34–8:33 AM
Blue hour
6:44–6:55 PM
Morning 7:22–7:34 AM; first light 7:22 AM

Stars tonight? Fair

Mostly clear 8:45 PM–7:23 AM, but the moon is 99% lit and up.

Moon

Waxing gibbous

98% lit · growing

Today
sets 6:08 AM · rises 5:26 PM
Full moon
Oct 25
New moon
Nov 9
Looking northwest from Island Park. The highest point on the skyline is about 10,100 ft, 13 mi away.Skyline from USGS elevation data, heights drawn up to 3× taller. Sky, sun and moon as they are now.