As of 18:39 MDT

Weather in Sun Valley, ID

53°Current weather

Sun Valley, Tuesday, 20 October, 18:39

Clear. Feels like 51°. High 62°, low 34°.

Pressure30.09 inHg
Wind0.9 mph E
Humidity61%
Visibility6.2 mi
Dew point40°

Monthly outlook for Sun Valley, ID: average high 51.7°, average low 33.5°. That is 1° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 21 October (63.6°), the coolest 25 October (25.7°).

51.7°/33.5°
Average high / low
+1°
Above normal
3 / 3
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
20 October – 29 October52.6°51.9°+0.4°
30 October – 8 November50.4°46°+2.4°
9 November – 18 Novemberat normal40.7°—

October records over 66 years

82.6°1 October 2010All-time high
-2.9°28 October 1970All-time low

Climate normals and records are computed from the nearest reference point — Hailey (12 mi).

Wed, 2164° / 34°0.15Light rain
64 °Light rain

Sun Valley, Wednesday, 21 October

Light rain. High 64°, low 34°.

Pressure30.09 inHg
Wind5.2 mph S
Humidity68%
Visibility5.3 mi
Dew point41°
Thu, 2252° / 36°0.3Rain
52 °Rain

Sun Valley, Thursday, 22 October

Rain. High 52°, low 36°.

Pressure29.94 inHg
Wind7 mph SE
Humidity72%
Visibility6.2 mi
Dew point42°
Fri, 2340° / 34°0.52Rain
40 °Rain

Sun Valley, Friday, 23 October

Rain. High 40°, low 34°.

Pressure29.83 inHg
Wind6.4 mph N
Humidity94%
Visibility2.3 mi
Dew point37°
Sat, 2445° / 29°0Clear
45 °Clear

Sun Valley, Saturday, 24 October

Clear. High 45°, low 29°.

Pressure30.21 inHg
Wind2.2 mph S
Humidity61%
Visibility6.2 mi
Dew point27°
Sun, 2550° / 26°0Clear
50 °Clear

Sun Valley, Sunday, 25 October

Clear. High 50°, low 26°.

Pressure30.18 inHg
Wind4.3 mph N
Humidity48%
Visibility—
Dew point26°
Mon, 2651° / 27°0Mostly clear
51 °Mostly clear

Sun Valley, Monday, 26 October

Mostly clear. High 51°, low 27°.

Pressure30.24 inHg
Wind8.6 mph S
Humidity54%
Visibility—
Dew point29°
Tue, 2753° / 35°0Clear
53 °Clear

Sun Valley, Tuesday, 27 October

Clear. High 53°, low 35°.

Pressure30.24 inHg
Wind5.6 mph S
Humidity41%
Visibility—
Dew point24°
Wed, 2853° / 37°0Overcast
53 °Overcast

Sun Valley, Wednesday, 28 October

Overcast. High 53°, low 37°.

Pressure30.15 inHg
Wind5.4 mph S
Humidity33%
Visibility—
Dew point20°
Thu, 2955° / 37°0Partly cloudy
55 °Partly cloudy

Sun Valley, Thursday, 29 October

Partly cloudy. High 55°, low 37°.

Pressure29.97 inHg
Wind6.4 mph S
Humidity32%
Visibility—
Dew point21°
Fri, 3047° / 37°0.02Light rain
47 °Light rain

Sun Valley, Friday, 30 October

Light rain. High 47°, low 37°.

Pressure29.74 inHg
Wind6.4 mph W
Humidity46%
Visibility—
Dew point26°
Sat, 3149° / 30°0Clear
49 °Clear

Sun Valley, Saturday, 31 October

Clear. High 49°, low 30°.

Pressure29.65 inHg
Wind6.7 mph SW
Humidity36%
Visibility—
Dew point17°
Sun, 0151° / 31°0Clear
51 °Clear

Sun Valley, Sunday, 1 November

Clear. High 51°, low 31°.

Pressure29.68 inHg
Wind6.8 mph NW
Humidity24%
Visibility—
Dew point11°
Mon, 0250° / 34°0Overcast
50 °Overcast

Sun Valley, Monday, 2 November

Overcast. High 50°, low 34°.

Pressure30.18 inHg
Wind6.8 mph N
Humidity26%
Visibility—
Dew point12°
Tue, 0352° / 38°0Overcast
52 °Overcast

Sun Valley, Tuesday, 3 November

Overcast. High 52°, low 38°.

Pressure30.12 inHg
Wind6.8 mph S
Humidity37%
Visibility—
Dew point23°
Wed, 0453° / 40°0.01Light rain
53 °Light rain

Sun Valley, Wednesday, 4 November

Light rain. High 53°, low 40°.

Pressure30.06 inHg
Wind5.3 mph S
Humidity45%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0546° / 27°0.04Climate normal
46 °Climate normal

Sun Valley, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high46°
Average low27°
Average precipitation0.04 in
Chance of precipitation18%
Record high62° (2012)
Record low-7° (1961)
Fri, 0645° / 28°0.07Climate normal
45 °Climate normal

Sun Valley, Friday, 6 November

Climate normal for this date — 60-year average.

Average high45°
Average low28°
Average precipitation0.07 in
Chance of precipitation28%
Record high62° (1999)
Record low5° (2008)
Sat, 0745° / 27°0.04Climate normal
45 °Climate normal

Sun Valley, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high45°
Average low27°
Average precipitation0.04 in
Chance of precipitation25%
Record high61° (1999)
Record low6° (2015)
Sun, 0843° / 26°0.07Climate normal
43 °Climate normal

Sun Valley, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high43°
Average low26°
Average precipitation0.07 in
Chance of precipitation32%
Record high58° (1976)
Record low-6° (1994)
Mon, 0942° / 25°0.07Climate normal
42 °Climate normal

Sun Valley, Monday, 9 November

Climate normal for this date — 60-year average.

Average high42°
Average low25°
Average precipitation0.07 in
Chance of precipitation32%
Record high59° (2016)
Record low4° (2005)
Tue, 1042° / 24°0.04Climate normal
42 °Climate normal

Sun Valley, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high42°
Average low24°
Average precipitation0.04 in
Chance of precipitation25%
Record high61° (2016)
Record low-2° (1998)
Wed, 1142° / 23°0.06Climate normal
42 °Climate normal

Sun Valley, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high42°
Average low23°
Average precipitation0.06 in
Chance of precipitation30%
Record high59° (2016)
Record low-6° (1975)
Thu, 1242° / 23°0.05Climate normal
42 °Climate normal

Sun Valley, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high42°
Average low23°
Average precipitation0.05 in
Chance of precipitation27%
Record high60° (1999)
Record low-4° (1975)
Fri, 1341° / 23°0.07Climate normal
41 °Climate normal

Sun Valley, Friday, 13 November

Climate normal for this date — 60-year average.

Average high41°
Average low23°
Average precipitation0.07 in
Chance of precipitation27%
Record high60° (1999)
Record low0° (1961)
Sat, 1440° / 22°0.05Climate normal
40 °Climate normal

Sun Valley, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high40°
Average low22°
Average precipitation0.05 in
Chance of precipitation22%
Record high61° (1999)
Record low-7° (1994)
Sun, 1540° / 20°0.04Climate normal
40 °Climate normal

Sun Valley, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high40°
Average low20°
Average precipitation0.04 in
Chance of precipitation22%
Record high58° (1999)
Record low-3° (2005)
Mon, 1640° / 22°0.06Climate normal
40 °Climate normal

Sun Valley, Monday, 16 November

Climate normal for this date — 60-year average.

Average high40°
Average low22°
Average precipitation0.06 in
Chance of precipitation23%
Record high57° (1999)
Record low-12° (2014)
Tue, 1739° / 22°0.06Climate normal
39 °Climate normal

Sun Valley, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high39°
Average low22°
Average precipitation0.06 in
Chance of precipitation33%
Record high55° (2008)
Record low-5° (2000)
Wed, 1838° / 20°0.08Climate normal
38 °Climate normal

Sun Valley, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high38°
Average low20°
Average precipitation0.08 in
Chance of precipitation27%
Record high55° (2008)
Record low-3° (1964)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Sun Valley, ID are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Sun Valley, ID since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.