Mid and Upper-Columbia River Temperature Report for July 2026  
Generated 2026-08-01 13:18:16

  Chief Joseph Dam forebay (CHJ) Chief Joseph tailwater (CHQW)
Date Min Avg Max >68.05 Min Avg Max >68.05
07 01 59.1 59.2 59.6 0/13 59.0 59.5 59.8 0/24
07 02 60.2 60.2 60.3 0/5 59.7 60.0 60.3 0/24
07 03 60.1 60.5 60.9 0/24 60.2 60.5 60.7 0/24
07 04 60.2 60.5 60.7 0/24 60.5 60.6 60.7 0/24
07 05 60.5 60.8 61.3 0/24 60.4 60.7 61.0 0/24
07 06 60.6 60.8 61.3 0/24 60.7 60.8 61.0 0/24
07 07 60.7 61.1 61.5 0/24 60.5 60.8 61.1 0/24
07 08 60.8 61.4 62.0 0/24 60.5 60.8 61.2 0/24
07 09 60.7 61.1 61.5 0/24 60.2 60.6 61.0 0/24
07 10 61.2 61.7 62.5 0/24 60.6 61.2 61.8 0/24
07 11 61.1 61.4 61.6 0/24 60.7 61.0 61.4 0/24
07 12 61.5 61.8 62.0 0/24 61.3 61.4 61.6 0/24
07 13 61.8 62.1 62.5 0/24 61.3 61.6 61.9 0/24
07 14 61.3 62.0 62.4 0/24 61.1 61.6 62.0 0/24
07 15 61.8 62.2 63.2 0/24 61.1 61.3 61.7 0/24
07 16 62.2 62.7 63.9 0/24 61.6 62.2 62.6 0/24
07 17 62.4 62.9 63.7 0/24 61.5 62.0 62.3 0/24
07 18 62.5 63.0 63.5 0/24 61.8 62.3 62.8 0/24
07 19 62.8 63.1 63.9 0/24 62.1 62.3 62.5 0/24
07 20 62.6 62.9 63.3 0/24 61.7 62.0 62.3 0/24
07 21 62.4 62.6 62.8 0/24 61.9 62.1 62.3 0/24
07 22 62.0 62.5 63.1 0/24 61.8 62.2 62.5 0/24
07 23 62.2 62.8 63.3 0/24 62.2 62.7 63.1 0/24
07 24 63.2 63.4 63.9 0/24 62.9 63.3 63.7 0/24
07 25 62.8 63.3 63.9 0/24 62.6 63.2 63.8 0/24
07 26 62.8 63.3 63.7 0/24 62.6 63.0 63.4 0/24
07 27 63.1 64.1 64.8 0/24 63.0 63.7 64.4 0/24
07 28 63.0 63.6 64.0 0/24 62.9 63.2 63.5 0/24
07 29 62.9 63.6 64.3 0/24 62.9 63.4 63.9 0/24
07 30 63.5 64.0 64.5 0/24 63.5 63.9 64.4 0/24
07 31 63.6 64.0 64.2 0/24 63.4 63.7 64.0 0/24
>68.05 0 0 0 0/
714
0 0 0 0/
744

Temperature in Degrees Fahrenheit
<32 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 >86

Bold, red text denotes values above 68.05°F.
--- indicates No Data

NOTICE: This report is based on raw, unverified data.