Sun Valley climate

Sun Valley Weather in July

NOAA 1991-2020 normals for Ketchum RS, 1.6 km from Sun Valley

Average highs run from 76°F on July 1 to 82°F on July 31, and lows from 43°F to 46°F. Normal precipitation for the month is 0.55 in over about 4 wet days.

July day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Sun Valley, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

July at a glance

Average high
80°F
Average low
45°F
Precipitation
0.55 in
Record high
99°FJul 21, 2026
Record low
36°FJul 11, 2016
Chance of a freeze
25%
Days of 90°F or more
2.3
Daylight
15 h 23 min to 14 h 35 min
Cloud cover
35%
Humidity
39%
Dew point
38°F
Wind
7.8 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Jul 176°F43°F96°F 202542°F 202016%0%
Jul 276°F43°F96°F 201539°F 201816%0%
Jul 376°F43°F95°F 201543°F 201816%0%
Jul 477°F43°F95°F 201542°F 201815%0%
Jul 577°F43°F96°F 201742°F 202315%0%
Jul 678°F44°F95°F 201742°F 202315%0%
Jul 778°F44°F96°F 201745°F 201615%0%
Jul 878°F44°F97°F 201744°F 202315%0%
Jul 979°F44°F96°F 201743°F 202315%0%
Jul 1079°F44°F98°F 202448°F 201614%0%
Jul 1179°F45°F98°F 202436°F 201614%0%
Jul 1280°F45°F97°F 202442°F 201614%0%
Jul 1380°F45°F97°F 202445°F 201614%0%
Jul 1480°F45°F97°F 202445°F 202314%0%
Jul 1581°F45°F98°F 201743°F 202014%0%
Jul 1681°F46°F97°F 202347°F 202314%0%
Jul 1781°F46°F97°F 202345°F 201615%0%
Jul 1881°F46°F96°F 202146°F 202315%0%
Jul 1981°F46°F96°F 202644°F 202315%0%
Jul 2082°F46°F98°F 202643°F 202315%0%
Jul 2182°F46°F99°F 202643°F 202315%0%
Jul 2282°F46°F96°F 201940°F 202315%0%
Jul 2382°F46°F97°F 202349°F 201515%0%
Jul 2482°F46°F97°F 202648°F 201615%0%
Jul 2582°F46°F97°F 202643°F 202315%0%
Jul 2682°F46°F96°F 202141°F 202315%0%
Jul 2782°F46°F93°F 201641°F 202315%0%
Jul 2882°F46°F94°F 201638°F 202315%0%
Jul 2982°F46°F95°F 201643°F 202315%0%
Jul 3082°F46°F96°F 201743°F 202316%0%
Jul 3182°F46°F99°F 201740°F 202316%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sun Valley, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

July 1
sunrise 6:00 AM, sunset 9:23 PM
July 31
sunrise 6:26 AM, sunset 9:01 PM

Every day of July: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00104845 (Ketchum RS), public domain. Records: NOAA GHCN-Daily, station USC00100774, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.