Ketchum Weather in September
Thinking of visiting Ketchum in September? Expect pleasant temperatures reaching 21°C (70°F) during the day, dropping to 4°C (39°F) at night, with some rainfall likely.
Rainfall in Ketchum in September
On average, there are about 6 days with rain during this month, averaging 31 mm (1.2 in). Rain is scarce this month and when it does fall, it tends to be light. Unlikely to disrupt plans significantly.
Temperature in Ketchum in September
September is one of the better months to visit Ketchum. Expect 21°C (70°F) during the day and 4°C (39°F) at night. Experience the summer season in September. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 4°C (39°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.Our weather planner can help you find worldwide destinations with pleasant weather during this period. June, July, August and September typically offer the best weather for Ketchum.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Ketchum's climate page.
Ketchum Temperature in September
Min Temperature
4°C (39°F)
Max Temperature
21°C (70°F)
Chance of Rain
21%
Precipitation
31 mm (1.2 in)
Rainy days
6 days
Best Places in the United States of America in September
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in September →
perfect weather
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tolerable
unpleasant
poor
What to Wear in Ketchum in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Light rain is possible, so consider bringing a small umbrella or rain jacket.What To Do in Ketchum in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Ketchum's climate page.
See the full Ketchum climate overview or explore weather in the United States of America.
