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Ski resort in Idaho, United States
Sun Valley
A resort at Sun Valley and Ketchum, Idaho, with skiing on Bald Mountain and Dollar Mountain.
Forecast updated , when it was 03:00 in Sun Valley (GMT-7).
Sun Valley snow forecast at 2,789 m (top lift)
Next 24 hours on the upper mountain
Snow tonight.
Starting around 8pm. 0–15 cm in the next 24 hours.
Possible, two of three forecast models show snow
Sun Valley at the top lift (2,789 m / 9,200 ft) is forecast to get 0–15 cm (0–6 in) of snow in the next 24 hours and 15–30 cm (6–11 in) over the next 7 days. Two of the three weather models we compare forecast snow in the next 24 hours. Expect temperatures from −5 to 3 °C (23 to 37 °F), the freezing level near 2,700 m (8,900 ft) and gusts up to 51 km/h (32 mph) over the next day.
- Temperature now
- −4 °C (25 °F)
- Freezing level
- 2,700 m (8,900 ft)
- Wind
- 7 km/h (4 mph), gusts 14 km/h (9 mph)
- Sky now
- Overcast, 98% cloud
Sun Valley hour by hour, on the upper mountain
Peak about 2 cm per hourShow the hours as a table
| Time | Weather | Snowfall |
|---|---|---|
| 8pm | Snow | 1.0 cm (0.4 in) |
| 9pm | Snow | 0.6 cm (0.2 in) |
| 10pm | Snow | 2 cm (0.8 in) |
| 11pm | Snow | 2 cm (0.7 in) |
| midnight | Snow | 0.6 cm (0.2 in) |
| 1am | Snow | 0.4 cm (0.1 in) |
| 2am | Snow | 0.3 cm (0.1 in) |
Hours not listed are dry. Times are local (GMT-7).
Sun Valley 7-day snow forecast, on the upper mountain
Best day to ski in Sun Valley this week: Saturday. 4 cm the day before and more falling, some sun, light wind. How we grade a ski day.
| Day | Weather | Snowfall |
|---|---|---|
| Today | SnowPoor ski day−4 to 3 °C (25 to 37 °F) · gusts 51 km/h (32 mph) · freezing level 2,750 m (9,000 ft) | 0–9 cm (0–4 in) |
| Sat | SnowBest day−8 to 0 °C (18 to 32 °F) · freezing level 2,150 m (7,100 ft) | 1–7 cm (0–3 in) |
| Sun | CloudyFair ski day−8 to 0 °C (18 to 32 °F) · freezing level 2,000 m (6,600 ft) | No snow |
| Mon | SnowFair ski day−6 to −2 °C (21 to 28 °F) · freezing level 2,100 m (6,900 ft) | 0–15 cm (0–5 in) |
| Tue | SnowFair ski day−9 to −4 °C (16 to 25 °F) · freezing level 2,050 m (6,700 ft) | 0–6 cm (0–3 in) |
| Wed | SnowFair ski day−15 to −6 °C (5 to 21 °F) · freezing level 1,450 m (4,800 ft) | 0–3 cm (0–2 in) |
| Thu | SnowFair ski day−14 to −7 °C (7 to 19 °F) · freezing level 1,650 m (5,400 ft) | 0–8 cm (0–3 in) |
Sky is graded over the ski day, 9am to 4pm. Bluebird means at least two of the three models show clear skies all day, none shows overcast, and no snow or rain is forecast. Models are weaker on cloud than on snow, and none of them can see valley fog, so treat it as a good sign rather than a promise.
Sun Valley 14-day snow outlook, on the upper mountain
Days 8 to 14. Only two of our three models run this far ahead, and forecasts at this range often change, so read this as a guide to the pattern rather than a plan.
| Day | Weather | Snowfall |
|---|---|---|
| Fri 20 Nov | Some sun−15 to −6 °C (5 to 21 °F) | No snow |
| Sat 21 Nov | Chance of snow−17 to −4 °C (1 to 25 °F) · 1 of 2 models show snow | 0–2 cm (under 1 in) |
| Sun 22 Nov | Sunny−15 to −5 °C (5 to 23 °F) | No snow |
| Mon 23 Nov | Cloudy−15 to −6 °C (5 to 21 °F) | No snow |
| Tue 24 Nov | Cloudy−14 to −5 °C (7 to 23 °F) | No snow |
| Wed 25 Nov | Some sun−11 to −5 °C (12 to 23 °F) | No snow |
| Thu 26 Nov | Some sun−15 to −5 °C (5 to 23 °F) | No snow |
How much snow is there in Sun Valley on the upper mountain?
No snow on the ground
This is an estimate from weather models, not a measurement, so it can differ from the depth a resort reports on its pistes. Check the official snow report before you travel.
Sun Valley snow forecast at 1,753 m (village)
Next 24 hours in the village
No snow in the next 24 hours.
Snow arrives on Wednesday, with 2–10 cm over the next 7 days.
High confidence, all three forecast models agree
No snow is forecast for Sun Valley in the village (1,753 m / 5,800 ft) in the next 24 hours, but 2–10 cm (0–4 in) is forecast over the next 7 days, starting on Wednesday. All three weather models we compare forecast snow this week. Expect temperatures from 2 to 10 °C (36 to 50 °F), the freezing level near 3,000 m (9,800 ft) and gusts up to 49 km/h (30 mph) over the next day.
- Temperature now
- 2 °C (36 °F)
- Freezing level
- 3,000 m (9,800 ft)
- Wind
- 6 km/h (4 mph), gusts 12 km/h (7 mph)
- Sky now
- Overcast, 98% cloud
Sun Valley hour by hour, in the village
Hourly snowfallShow the hours as a table
| Time | Weather | Snowfall |
|---|---|---|
| 8pm | Rain | None |
| 9pm | Rain | None |
| 10pm | Rain | None |
| 11pm | Rain | None |
| midnight | Rain | None |
| 1am | Rain | None |
| 2am | Rain | None |
Hours not listed are dry. Times are local (GMT-7).
Sun Valley 7-day snow forecast, in the village
| Day | Weather | Snowfall |
|---|---|---|
| Today | Rain2 to 10 °C (36 to 50 °F) · gusts 49 km/h (30 mph) · freezing level 2,850 m (9,400 ft) | No snow |
| Sat | Rain−1 to 6 °C (30 to 43 °F) · freezing level 2,300 m (7,500 ft) | No snow |
| Sun | Cloudy−1 to 6 °C (30 to 43 °F) · freezing level 2,000 m (6,600 ft) | No snow |
| Mon | Rain1 to 5 °C (34 to 41 °F) · freezing level 2,100 m (6,900 ft) | No snow |
| Tue | Rain−2 to 3 °C (28 to 37 °F) · freezing level 2,050 m (6,700 ft) | No snow |
| Wed | Snow−8 to 1 °C (18 to 34 °F) · freezing level 1,450 m (4,800 ft) | 0–3 cm (0–2 in) |
| Thu | Rain and snow−7 to −1 °C (19 to 30 °F) · freezing level 1,650 m (5,400 ft) | 0–7 cm (0–3 in) |
Sky is graded over the ski day, 9am to 4pm. Bluebird means at least two of the three models show clear skies all day, none shows overcast, and no snow or rain is forecast. Models are weaker on cloud than on snow, and none of them can see valley fog, so treat it as a good sign rather than a promise.
Sun Valley 14-day snow outlook, in the village
Days 8 to 14. Only two of our three models run this far ahead, and forecasts at this range often change, so read this as a guide to the pattern rather than a plan.
| Day | Weather | Snowfall |
|---|---|---|
| Fri 20 Nov | Some sun−9 to 0 °C (16 to 32 °F) | No snow |
| Sat 21 Nov | Chance of snow−10 to 3 °C (14 to 37 °F) · 1 of 2 models show snow | 0–2 cm (under 1 in) |
| Sun 22 Nov | Sunny−8 to 2 °C (18 to 36 °F) | No snow |
| Mon 23 Nov | Cloudy−8 to 1 °C (18 to 34 °F) | No snow |
| Tue 24 Nov | Cloudy−7 to 2 °C (19 to 36 °F) | No snow |
| Wed 25 Nov | Some sun−4 to 2 °C (25 to 36 °F) | No snow |
| Thu 26 Nov | Some sun−8 to 2 °C (18 to 36 °F) | No snow |
How much snow is there in Sun Valley in the village?
No snow on the ground
This is an estimate from weather models, not a measurement, so it can differ from the depth a resort reports on its pistes. Check the official snow report before you travel.
Where is Sun Valley?
- State
- Idaho
- Country
- United States
- Mountains
- Rocky Mountains
- Village
- 1,753 m
- Top lift
- 2,789 m
- Vertical
- 1,036 m
- Lifts
- 17
- Season
- Late November to Early April
- Airports
- Friedman Memorial (SUN)
- Passes
- Ikon Pass, Mountain Collective
- Website
- www.sunvalley.com
About Sun Valley
Sun Valley Resort is next to Ketchum, Idaho, and opened in 1936. Skiing is on two mountains, Bald Mountain and Dollar Mountain.
Bald Mountain rises from 5,750 ft (1,753 m) to 9,150 ft (2,789 m), a vertical of 3,400 ft. Friedman Memorial Airport in Hailey is about 14 miles (23 km) away.
When does it snow in Sun Valley?
In Sun Valley, snow falls on about 10 days in January in a typical year, the snowiest month. Snow is regular from October to May.
| January | February | March | April | May | June | July | August | September | October | November | December |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 days | 10 days | 10 days | 7 days | 4 days | 1 days | 0 days | 0 days | <1 days | 4 days | 6 days | 9 days |
Average days each month with at least 1 cm of snowfall at mid-mountain, 2016–2025. Calculated from ERA5 reanalysis data.
Snow in Sun Valley month by month
Averages for 2016 to 2025 at mid-mountain, from ERA5 reanalysis data.
| Month | Snow days | Share of the year's snow | Low to high |
|---|---|---|---|
| January | 10 | 15% | −13 to −3 °C (9 to 27 °F) |
| February | 10 | 19% | −13 to −2 °C (9 to 28 °F) |
| March | 10 | 18% | −10 to 1 °C (14 to 34 °F) |
| April | 7 | 8% | −7 to 6 °C (19 to 43 °F) |
| May | 4 | 5% | −3 to 11 °C (27 to 52 °F) |
| June | 1 | 1% | 2 to 19 °C (36 to 66 °F) |
| July | 0 | 0% | 7 to 25 °C (45 to 77 °F) |
| August | 0 | 0% | 7 to 24 °C (45 to 75 °F) |
| September | <1 | 1% | 2 to 18 °C (36 to 64 °F) |
| October | 4 | 5% | −4 to 9 °C (25 to 48 °F) |
| November | 6 | 10% | −9 to 3 °C (16 to 37 °F) |
| December | 9 | 18% | −13 to −2 °C (9 to 28 °F) |
Snow in Sun Valley in October
In October, Sun Valley gets snow on about 4 days at mid-mountain, and the month brings about 5% of the year's snowfall. Daily temperatures usually run from −4 to 9 °C (25 to 48 °F).
Snow in Sun Valley in November
In November, Sun Valley gets snow on about 6 days at mid-mountain, and the month brings about 10% of the year's snowfall. Daily temperatures usually run from −9 to 3 °C (16 to 37 °F).
Snow in Sun Valley in December
In December, Sun Valley gets snow on about 9 days at mid-mountain, and the month brings about 18% of the year's snowfall. Daily temperatures usually run from −13 to −2 °C (9 to 28 °F).
Snow in Sun Valley in January
In January, Sun Valley gets snow on about 10 days at mid-mountain, and the month brings about 15% of the year's snowfall. Daily temperatures usually run from −13 to −3 °C (9 to 27 °F).
Snow in Sun Valley in February
In February, Sun Valley gets snow on about 10 days at mid-mountain, and the month brings about 19% of the year's snowfall. Daily temperatures usually run from −13 to −2 °C (9 to 28 °F).
Snow in Sun Valley in March
In March, Sun Valley gets snow on about 10 days at mid-mountain, and the month brings about 18% of the year's snowfall. Daily temperatures usually run from −10 to 1 °C (14 to 34 °F).
Snow in Sun Valley in April
In April, Sun Valley gets snow on about 7 days at mid-mountain, and the month brings about 8% of the year's snowfall. Daily temperatures usually run from −7 to 6 °C (19 to 43 °F).
Snow in Sun Valley in May
In May, Sun Valley gets snow on about 4 days at mid-mountain, and the month brings about 5% of the year's snowfall. Daily temperatures usually run from −3 to 11 °C (27 to 52 °F).
Which winters were snowiest in Sun Valley?
Of the last ten winters in Sun Valley, 2016/17 was the snowiest, about 48% above the ten-year average at mid-mountain. The leanest was 2019/20, about 28% below average. The biggest single day of snowfall in the record was 10 March 2023.
| Winter | Compared with average | |
|---|---|---|
| 2016/17 | 148% of average | |
| 2017/18 | 93% of average | |
| 2018/19 | 122% of average | |
| 2019/20 | 72% of average | |
| 2020/21 | 73% of average | |
| 2021/22 | 91% of average | |
| 2022/23 | 131% of average | |
| 2023/24 | 95% of average | |
| 2024/25 | 100% of average | |
| 2025/26 | 76% of average |
Winters are compared with each other rather than given in centimetres. The ERA5 record is reliable on which winters were big and which were lean, but it underestimates absolute snowfall in the mountains, so the resort's own measured totals are the ones to trust for amounts.
Questions about snow in Sun Valley
Does Sun Valley have snow at Christmas?
Sun Valley had at least 2.5 cm (1 in) of snow on the ground on Christmas Day in 9 of the 10 years from 2016 to 2025 at mid-mountain. Fresh snow fell during 20 to 26 December in every one of those years.
Does Sun Valley have snow at New Year?
Sun Valley had at least 2.5 cm (1 in) of snow on the ground on New Year's Day in every one of the 10 years from 2016 to 2025 at mid-mountain. Fresh snow fell during 27 December to 2 January in 9 of those years.
Does Sun Valley have snow in mid-February?
Sun Valley had at least 2.5 cm (1 in) of snow on the ground on 15 February in every one of the 10 years from 2016 to 2025 at mid-mountain. Fresh snow fell during 10 to 20 February in every one of those years.
Does Sun Valley have snow at Easter?
Sun Valley had at least 2.5 cm (1 in) of snow on the ground on Easter Sunday in every one of the 10 years from 2016 to 2025 at mid-mountain. Fresh snow fell during Good Friday to Easter Monday in 5 of those years.
How many days a year does it snow in Sun Valley?
It snows on about 62 days a year in Sun Valley at mid-mountain, counting days with at least 1 cm of snowfall, averaged over 2016 to 2025. January has the most, about 10 days.
What is the snowiest month in Sun Valley?
February is the snowiest month in Sun Valley, bringing about 19% of the year's snowfall at mid-mountain, based on ERA5 reanalysis data for 2016 to 2025. January has the most snowy days, about 10.
Which recent winter was the snowiest in Sun Valley?
Of the last ten winters in Sun Valley, 2016/17 was the snowiest, about 48% above the ten-year average. The leanest was 2019/20, about 28% below average.
How cold does Sun Valley get in winter?
January is the coldest month in Sun Valley at mid-mountain, with average daily lows of −13 °C (9 °F) and highs of −3 °C (27 °F).
How high is Sun Valley?
The village or lowest lift at Sun Valley is at 1,753 m (5,800 ft) and the top lift is at 2,789 m (9,200 ft), a vertical drop of 1,036 m (3,400 ft).
When does the ski season start in Sun Valley?
The lifts at Sun Valley usually open in late November and close in early April. Exact dates change each year with the snow, so check the resort's own website before you book.
Snow forecasts near Sun Valley
Sources: Sun Valley: Bald Mountain, Sun Valley: getting here, Wikipedia: Sun Valley, Idaho, J2Ski: Sun Valley season dates