Mid and Upper-Columbia River Temperature Report for August 2025  
Generated 2025-09-01 13:18:09

  Chief Joseph Dam forebay (CHJ) Chief Joseph tailwater (CHQW)
Date Min Avg Max >68.05 Min Avg Max >68.05
08 01 65.5 66.1 66.6 0/24 64.5 65.3 66.0 0/24
08 02 66.4 66.8 67.4 0/24 65.0 65.8 66.3 0/24
08 03 66.0 66.4 67.1 0/24 64.8 65.0 65.3 0/24
08 04 65.4 65.9 66.4 0/24 64.6 64.9 65.2 0/24
08 05 65.4 65.8 66.1 0/24 64.6 64.9 65.3 0/24
08 06 64.5 65.0 65.4 0/24 64.3 64.4 64.6 0/24
08 07 64.4 64.7 65.2 0/24 64.3 64.7 65.2 0/24
08 08 64.5 64.8 65.4 0/24 64.5 64.8 65.1 0/24
08 09 65.2 66.1 66.8 0/24 65.1 65.8 66.2 0/24
08 10 66.1 66.3 66.5 0/24 65.9 66.1 66.3 0/24
08 11 66.5 66.8 67.3 0/24 66.3 66.6 67.0 0/24
08 12 66.4 66.7 67.0 0/24 66.3 66.5 66.9 0/24
08 13 66.7 66.9 67.2 0/24 66.5 66.8 67.1 0/24
08 14 67.1 67.3 67.6 0/17 66.7 67.0 67.3 0/24
08 15 --- --- --- 0/0 66.7 67.0 67.3 0/24
08 16 --- --- --- 0/0 66.5 66.8 67.1 0/24
08 17 --- --- --- 0/0 66.4 66.7 67.1 0/24
08 18 --- --- --- 0/0 66.4 66.6 66.9 0/24
08 19 --- --- --- 0/0 66.2 66.5 66.7 0/24
08 20 --- --- --- 0/0 66.2 66.5 66.7 0/24
08 21 --- --- --- 0/0 66.4 66.9 67.3 0/24
08 22 67.7 67.7 67.8 0/7 66.9 67.3 67.6 0/24
08 23 67.4 67.6 67.8 0/24 66.9 67.2 67.5 0/24
08 24 67.4 67.5 67.6 0/3 66.8 67.1 67.3 0/24
08 25 67.5 67.9 68.1 2/7 67.0 67.2 67.6 0/24
08 26 67.3 67.6 68.1 1/24 67.0 67.3 67.6 0/24
08 27 67.6 67.7 67.8 0/9 67.2 67.4 67.6 0/24
08 28 --- --- --- 0/0 67.2 67.4 67.8 0/23
08 29 --- --- --- 0/0 67.1 67.4 67.9 0/24
08 30 --- --- --- 0/0 67.4 67.6 68.1 1/24
08 31 --- --- --- 0/0 67.5 67.7 68.0 0/24
>68.05 0 0 2 3/
403		 0 0 1 1/
743

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.