Monthly outlook for Sun Valley, ID: average high 51.3°, average low 33.6°. That is 2.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 7 November (63.4°), the coolest 27 October (21.8°).
51.3°/33.6°
Average high / low
+2.1°
Above normal
2 / 4
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
47.5°
49°
-0.9°
3 November – 12 November
57.8°
44.1°
+7.6°
13 November – 22 November
at normal
38.7°
—
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).
Sun, 2554° / 30°0
54 °
Sun Valley, Sunday, 25 October
Partly cloudy. High 54°, low 30°.
Pressure30.12 inHg
Wind3.5 mph SW
Humidity55%
Visibility6.2 mi
Dew point21°
Mon, 2644° / 25°0.17
44 °
Sun Valley, Monday, 26 October
Snow. High 44°, low 25°.
Pressure30.00 inHg
Wind7.8 mph S
Humidity60%
Visibility6.2 mi
Dew point29°
Tue, 2739° / 22°0
39 °
Sun Valley, Tuesday, 27 October
Overcast. High 39°, low 22°.
Pressure30.12 inHg
Wind3.4 mph SW
Humidity76%
Visibility6.2 mi
Dew point20°
Wed, 2842° / 28°0.01
42 °
Sun Valley, Wednesday, 28 October
Light snow. High 42°, low 28°.
Pressure29.94 inHg
Wind8.9 mph S
Humidity66%
Visibility—
Dew point28°
Thu, 2940° / 29°0.04
40 °
Sun Valley, Thursday, 29 October
Snow. High 40°, low 29°.
Pressure29.91 inHg
Wind7.9 mph S
Humidity81%
Visibility—
Dew point29°
Fri, 3047° / 31°0
47 °
Sun Valley, Friday, 30 October
Clear. High 47°, low 31°.
Pressure29.91 inHg
Wind8.3 mph SW
Humidity40%
Visibility—
Dew point20°
Sat, 3148° / 30°0
48 °
Sun Valley, Saturday, 31 October
Overcast. High 48°, low 30°.
Pressure30.09 inHg
Wind7 mph N
Humidity19%
Visibility—
Dew point3°
Sun, 0149° / 30°0
49 °
Sun Valley, Sunday, 1 November
Clear. High 49°, low 30°.
Pressure30.36 inHg
Wind7.5 mph N
Humidity12%
Visibility—
Dew point-5°
Mon, 0252° / 34°0
52 °
Sun Valley, Monday, 2 November
Clear. High 52°, low 34°.
Pressure30.39 inHg
Wind5.6 mph N
Humidity15%
Visibility—
Dew point2°
Tue, 0356° / 37°0
56 °
Sun Valley, Tuesday, 3 November
Clear. High 56°, low 37°.
Pressure30.18 inHg
Wind5.4 mph N
Humidity15%
Visibility—
Dew point5°
Wed, 0457° / 40°0
57 °
Sun Valley, Wednesday, 4 November
Clear. High 57°, low 40°.
Pressure30.00 inHg
Wind5.4 mph S
Humidity21%
Visibility—
Dew point14°
Thu, 0549° / 41°0
49 °
Sun Valley, Thursday, 5 November
Overcast. High 49°, low 41°.
Pressure30.09 inHg
Wind6.5 mph N
Humidity47%
Visibility—
Dew point29°
Fri, 0661° / 41°0
61 °
Sun Valley, Friday, 6 November
Overcast. High 61°, low 41°.
Pressure30.33 inHg
Wind7.3 mph N
Humidity50%
Visibility—
Dew point36°
Sat, 0763° / 45°0
63 °
Sun Valley, Saturday, 7 November
Clear. High 63°, low 45°.
Pressure30.33 inHg
Wind6.6 mph N
Humidity35%
Visibility—
Dew point30°
Sun, 0860° / 45°0
60 °
Sun Valley, Sunday, 8 November
Clear. High 60°, low 45°.
Pressure30.18 inHg
Wind6.2 mph NE
Humidity29%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0942° / 25°0.07
42 °
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°0.04
42 °
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°0.06
42 °
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°0.05
42 °
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°0.07
41 °
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°0.05
40 °
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°0.04
40 °
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°0.06
40 °
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°0.06
39 °
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°0.08
38 °
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)
Thu, 1938° / 18°0.06
38 °
Sun Valley, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low18°
Average precipitation0.06 in
Chance of precipitation28%
Record high53° (2008)
Record low-10° (1985)
Fri, 2038° / 20°0.06
38 °
Sun Valley, Friday, 20 November
Climate normal for this date — 60-year average.
Average high38°
Average low20°
Average precipitation0.06 in
Chance of precipitation32%
Record high52° (1989)
Record low-7° (2011)
Sat, 2137° / 18°0.06
37 °
Sun Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high37°
Average low18°
Average precipitation0.06 in
Chance of precipitation28%
Record high51° (1989)
Record low-12° (1985)
Sun, 2236° / 18°0.1
36 °
Sun Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high36°
Average low18°
Average precipitation0.1 in
Chance of precipitation35%
Record high51° (2002)
Record low-13° (1994)
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.