Weather in Sun Valley, ID
Sun Valley, Thursday, 15 October, 21:12
Clear. Feels like 46°. High 58°, low 27°.
Monthly outlook for Sun Valley, ID: average high 49.2°, average low 31°. That is 2.1° below the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 16 October (64.8°), the coolest 24 October (24°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 52.2° | 55.2° | -1.6° |
| 25 October – 3 November | 44.3° | 48.5° | -2.3° |
| 4 November – 13 November | at normal | 43.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Hailey (12 mi).
0
Sun Valley, Friday, 16 October
Overcast. High 65°, low 35°.
0Sun Valley, Saturday, 17 October
Overcast. High 56°, low 35°.
0
Sun Valley, Sunday, 18 October
Clear. High 55°, low 30°.
0Sun Valley, Monday, 19 October
Overcast. High 53°, low 32°.
0.37
Sun Valley, Tuesday, 20 October
Snow. High 47°, low 33°.
0.02
Sun Valley, Wednesday, 21 October
Light rain. High 53°, low 28°.
0.12Sun Valley, Thursday, 22 October
Light rain. High 52°, low 44°.
0.17Sun Valley, Friday, 23 October
Snow. High 41°, low 28°.
0Sun Valley, Saturday, 24 October
Clear. High 43°, low 24°.
0Sun Valley, Sunday, 25 October
Overcast. High 42°, low 27°.
0.01Sun Valley, Monday, 26 October
Light snow. High 43°, low 30°.
0Sun Valley, Tuesday, 27 October
Clear. High 44°, low 26°.
0.02Sun Valley, Wednesday, 28 October
Light snow. High 47°, low 31°.
0.02Sun Valley, Thursday, 29 October
Light rain. High 48°, low 32°.
0.27Sun Valley, Friday, 30 October
Snow. High 42°, low 34°.
0.02
Sun Valley, Saturday, 31 October
Climate normal for this date — 60-year average.
0.04
Sun Valley, Sunday, 1 November
Climate normal for this date — 60-year average.
0.05Sun Valley, Monday, 2 November
Climate normal for this date — 60-year average.
0.04Sun Valley, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Sun Valley, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Sun Valley, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07Sun Valley, Friday, 6 November
Climate normal for this date — 60-year average.
0.04Sun Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Sun Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Sun Valley, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Sun Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Sun Valley, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.05Sun Valley, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Sun Valley, Friday, 13 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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