Bonneville County climate

Bonneville County Weather in August

NOAA 1991-2020 normals for Idaho Falls 16 Se, 14.5 km from Bonneville County

Average highs run from 82°F on August 1 to 76°F on August 31, and lows from 51°F to 44°F. Normal precipitation for the month is 0.89 in over about 6 wet days.

August day by day

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

Normal daily high and low temperature at Bonneville County, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
79°F
Average low
48°F
Precipitation
0.89 in
Record high
101°FAug 1, 2026
Record low
28°FAug 26, 1992
Chance of a freeze
18%
Days of 90°F or more
1.7
Daylight
14 h 32 min to 13 h 13 min
Cloud cover
41%
Humidity
48%
Dew point
39°F
Wind
5.4 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
Aug 182°F51°F101°F 202637°F 200218%0%
Aug 282°F50°F100°F 202442°F 196318%0%
Aug 382°F50°F100°F 202442°F 196318%0%
Aug 482°F50°F100°F 196136°F 198018%0%
Aug 582°F50°F97°F 196138°F 198018%0%
Aug 682°F50°F98°F 198342°F 195018%0%
Aug 782°F50°F100°F 198340°F 195018%0%
Aug 881°F50°F99°F 199039°F 200418%0%
Aug 981°F49°F96°F 199136°F 200218%0%
Aug 1081°F49°F98°F 196937°F 200218%0%
Aug 1181°F49°F98°F 201841°F 198018%0%
Aug 1281°F49°F97°F 195837°F 200017%0%
Aug 1380°F49°F96°F 200339°F 200617%0%
Aug 1480°F48°F99°F 200337°F 200618%0%
Aug 1580°F48°F98°F 200338°F 200518%0%
Aug 1680°F48°F96°F 202237°F 197418%0%
Aug 1779°F48°F99°F 202336°F 200218%0%
Aug 1879°F47°F97°F 202235°F 197818%0%
Aug 1979°F47°F97°F 196134°F 200218%0%
Aug 2079°F47°F98°F 202634°F 196418%0%
Aug 2178°F47°F97°F 202635°F 196418%0%
Aug 2278°F46°F98°F 196936°F 195418%0%
Aug 2378°F46°F97°F 196936°F 198518%0%
Aug 2478°F46°F98°F 196934°F 199218%0%
Aug 2577°F46°F97°F 201530°F 199218%0%
Aug 2677°F46°F97°F 201028°F 199218%0%
Aug 2777°F45°F93°F 198133°F 196418%0%
Aug 2876°F45°F94°F 201233°F 196018%0%
Aug 2976°F45°F95°F 194832°F 196018%0%
Aug 3076°F45°F99°F 195431°F 196418%0%
Aug 3176°F44°F97°F 202230°F 196518%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Bonneville County, 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).

August 1
sunrise 6:16 AM, sunset 8:48 PM
August 31
sunrise 6:50 AM, sunset 8:03 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00104456 (Idaho Falls 16 Se), public domain. Records: NOAA GHCN-Daily, station USW00024145, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.