Lower Snake River Temperature Report for March 2026  
Generated 2026-03-31 21:27:09

  Anatone - Snake River Near Anatone (ANQW) Lower Granite Dam forebay (LWG) Lower Granite tailwater - Snake R. below dam (LGNW) Little Goose Dam forebay (LGSA) Little Goose Dam tailwater (Snake R. below Little Goose) (LGSW) Lower Monumental Dam forebay on Snake River (LMNA) Lower Monumental tailwater below the dam on Snake River (LMNW) Ice Harbor Dam forebay (IHRA) Ice Harbor tailwater- Snake R. below Goose Is. (IDSW)
Date Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05 Min Avg Max >68.05
03 01 41.5 42.0 42.8 0/24 --- --- --- 0/0 41.6 41.7 41.8 0/24 --- --- --- 0/0 41.9 42.2 42.5 0/24 --- --- --- 0/0 42.3 42.4 42.7 0/24 --- --- --- 0/0 42.3 42.5 42.8 0/24
03 02 42.3 43.0 44.0 0/24 --- --- --- 0/0 41.8 42.0 42.2 0/24 --- --- --- 0/0 42.2 42.4 42.8 0/24 --- --- --- 0/0 42.2 42.4 42.6 0/24 --- --- --- 0/0 42.6 42.8 43.1 0/24
03 03 43.0 43.4 44.0 0/24 --- --- --- 0/0 42.0 42.1 42.3 0/24 --- --- --- 0/0 42.4 42.7 43.0 0/24 --- --- --- 0/0 42.2 42.4 42.7 0/24 --- --- --- 0/0 42.8 43.0 43.3 0/24
03 04 43.4 43.7 43.8 0/24 --- --- --- 0/0 42.2 42.3 42.4 0/24 --- --- --- 0/0 42.5 42.6 42.8 0/24 --- --- --- 0/0 42.2 42.4 42.5 0/24 --- --- --- 0/0 43.0 43.1 43.3 0/24
03 05 43.6 43.9 44.2 0/24 --- --- --- 0/0 42.1 42.3 42.4 0/24 --- --- --- 0/0 42.3 42.5 42.7 0/24 --- --- --- 0/0 42.4 42.6 42.9 0/24 --- --- --- 0/0 43.1 43.3 43.6 0/24
03 06 43.1 43.5 43.9 0/24 --- --- --- 0/0 42.4 42.5 42.7 0/24 --- --- --- 0/0 42.3 42.5 42.7 0/24 --- --- --- 0/0 42.8 43.0 43.2 0/24 --- --- --- 0/0 43.2 43.4 43.6 0/24
03 07 43.6 44.5 45.5 0/24 --- --- --- 0/0 42.7 43.0 43.4 0/24 --- --- --- 0/0 42.6 42.9 43.2 0/24 --- --- --- 0/0 43.2 43.4 43.7 0/24 --- --- --- 0/0 43.4 43.6 43.9 0/24
03 08 45.6 46.0 46.6 0/23 --- --- --- 0/0 43.3 43.6 44.0 0/23 --- --- --- 0/0 43.1 43.3 43.6 0/23 --- --- --- 0/0 43.6 43.8 44.0 0/23 --- --- --- 0/0 43.6 43.9 44.2 0/23
03 09 44.9 45.9 46.4 0/24 --- --- --- 0/0 43.8 43.9 44.0 0/24 --- --- --- 0/0 43.4 43.5 43.7 0/24 --- --- --- 0/0 43.8 43.9 44.0 0/24 --- --- --- 0/0 43.9 44.0 44.2 0/24
03 10 43.3 43.8 44.7 0/24 --- --- --- 0/0 43.8 43.9 44.0 0/24 --- --- --- 0/0 43.5 43.7 43.9 0/24 --- --- --- 0/0 43.7 43.8 44.0 0/24 --- --- --- 0/0 44.0 44.2 44.5 0/24
03 11 42.6 42.9 43.2 0/24 --- --- --- 0/0 43.8 43.9 43.9 0/24 43.7 43.8 43.8 0/15 43.6 43.7 43.9 0/24 --- --- --- 0/0 43.8 43.9 44.0 0/24 --- --- --- 0/0 44.2 44.4 44.5 0/24
03 12 43.0 43.5 44.0 0/24 --- --- --- 0/0 43.9 44.2 44.5 0/24 43.8 43.9 44.0 0/24 43.9 43.9 44.0 0/24 --- --- --- 0/0 44.0 44.0 44.1 0/24 44.2 44.3 44.5 0/10 44.3 44.4 44.5 0/24
03 13 43.6 44.0 44.6 0/24 --- --- --- 0/0 44.6 44.9 45.0 0/24 44.0 44.1 44.2 0/24 44.0 44.1 44.3 0/24 --- --- --- 0/0 43.9 44.0 44.0 0/24 44.1 44.1 44.2 0/24 44.2 44.2 44.2 0/24
03 14 44.1 44.6 45.0 0/24 --- --- --- 0/0 43.1 43.9 44.8 0/24 44.2 44.3 44.5 0/24 44.3 44.3 44.4 0/24 --- --- --- 0/0 44.0 44.1 44.2 0/24 44.1 44.2 44.2 0/24 44.2 44.3 44.5 0/24
03 15 42.8 43.5 44.0 0/24 --- --- --- 0/0 42.5 42.8 43.1 0/24 44.2 44.3 44.5 0/24 44.2 44.5 44.9 0/24 --- --- --- 0/0 44.1 44.3 44.4 0/24 44.0 44.2 44.3 0/24 44.2 44.3 44.4 0/24
03 16 43.6 44.1 44.7 0/24 --- --- --- 0/0 42.4 42.6 42.7 0/24 44.5 44.8 45.0 0/24 44.9 45.1 45.2 0/24 44.1 44.3 44.4 0/11 44.1 44.3 44.5 0/24 44.2 44.3 44.5 0/24 44.3 44.4 44.6 0/24
03 17 44.8 45.1 45.7 0/24 42.5 42.6 42.7 0/12 42.6 42.7 42.8 0/24 44.7 44.8 44.9 0/24 44.2 44.7 45.1 0/24 44.1 44.3 44.6 0/24 44.1 44.3 44.5 0/24 44.5 44.6 44.8 0/24 44.6 44.7 44.8 0/24
03 18 45.2 46.3 47.5 0/24 42.7 42.9 43.1 0/24 42.7 42.9 43.1 0/24 43.8 44.1 44.5 0/24 43.8 44.0 44.2 0/24 44.6 44.9 45.3 0/24 44.6 44.9 45.2 0/24 44.6 44.7 44.9 0/24 44.7 44.8 45.0 0/24
03 19 46.5 47.5 48.7 0/24 43.2 43.4 43.7 0/24 43.2 43.5 43.7 0/24 43.6 43.8 44.4 0/24 43.5 43.7 43.8 0/24 45.3 45.4 45.5 0/24 45.2 45.3 45.5 0/24 44.6 44.7 44.8 0/24 44.7 44.8 44.9 0/24
03 20 47.8 48.8 49.7 0/24 43.7 44.0 44.3 0/24 43.8 44.1 44.3 0/24 43.5 43.9 44.2 0/24 43.6 43.7 43.8 0/24 44.9 45.1 45.5 0/24 44.9 45.0 45.2 0/24 44.8 45.2 45.5 0/24 44.9 45.2 45.5 0/24
03 21 48.8 49.6 50.5 0/24 44.3 44.7 45.3 0/24 44.4 44.8 45.2 0/24 43.8 44.3 45.0 0/24 43.7 43.8 44.1 0/24 44.7 44.9 45.1 0/24 44.6 44.8 44.9 0/24 45.5 45.8 46.3 0/24 45.5 45.9 46.2 0/24
03 22 47.5 48.3 49.4 0/24 45.3 46.1 46.8 0/24 45.3 46.1 46.8 0/24 44.1 44.3 44.9 0/24 43.9 44.2 44.5 0/24 44.6 44.7 45.0 0/24 44.6 44.8 44.9 0/24 45.6 45.8 46.1 0/24 45.8 46.0 46.1 0/24
03 23 46.7 47.5 48.1 0/24 47.0 47.4 47.8 0/24 46.8 47.3 47.7 0/24 44.2 44.5 44.8 0/24 44.4 44.7 45.0 0/24 44.6 44.7 44.9 0/24 44.6 44.7 44.8 0/15 45.3 45.5 45.8 0/24 45.5 45.7 45.8 0/24
03 24 47.3 47.8 48.4 0/24 47.2 47.6 47.9 0/24 47.2 47.6 47.8 0/24 44.6 44.9 45.1 0/24 45.0 45.2 45.4 0/24 44.5 44.7 44.9 0/24 44.6 44.8 44.9 0/14 45.2 45.3 45.5 0/24 45.3 45.4 45.5 0/24
03 25 48.0 48.8 49.8 0/24 46.4 46.8 47.3 0/24 46.7 47.0 47.2 0/24 45.1 46.1 46.9 0/24 45.4 45.9 46.3 0/24 44.9 45.0 45.4 0/24 44.9 45.1 45.4 0/24 45.1 45.2 45.3 0/24 45.2 45.3 45.5 0/24
03 26 48.0 48.8 49.4 0/24 46.3 46.4 46.7 0/24 46.5 46.6 46.7 0/24 46.5 47.1 48.0 0/24 46.4 47.0 47.6 0/24 45.3 45.5 46.1 0/24 45.3 45.5 45.8 0/24 45.0 45.2 45.4 0/24 45.1 45.3 45.5 0/24
03 27 47.0 47.8 48.4 0/24 46.2 46.5 47.4 0/24 46.3 46.6 46.9 0/24 47.4 47.9 48.4 0/24 47.7 48.0 48.2 0/24 45.8 46.2 46.5 0/24 45.8 46.2 46.6 0/24 45.2 45.5 45.8 0/24 45.3 45.6 45.9 0/24
03 28 47.0 47.5 48.1 0/24 46.7 46.8 47.1 0/24 46.7 46.9 47.0 0/24 47.7 48.0 48.5 0/24 47.4 47.8 48.0 0/24 46.6 47.2 47.8 0/24 46.7 47.3 47.9 0/24 45.7 45.9 46.2 0/24 45.8 46.0 46.2 0/24
03 29 46.8 47.2 47.7 0/24 46.5 46.7 47.0 0/24 46.6 46.8 47.0 0/24 47.1 47.3 47.9 0/24 47.0 47.3 47.4 0/24 47.8 48.1 48.3 0/24 47.8 48.2 48.3 0/24 46.1 46.5 46.9 0/24 46.2 46.6 46.9 0/24
03 30 46.3 47.1 47.9 0/24 46.0 46.3 46.6 0/24 46.3 46.5 46.7 0/24 46.9 47.1 47.5 0/24 47.0 47.1 47.3 0/24 47.9 48.1 48.2 0/24 47.8 48.1 48.3 0/24 46.9 47.2 47.8 0/24 46.9 47.3 47.7 0/24
03 31 46.7 47.1 47.6 0/21 45.9 46.1 46.2 0/21 46.0 46.1 46.3 0/21 47.0 47.1 47.3 0/21 47.1 47.2 47.3 0/21 47.4 47.6 48.2 0/21 47.4 47.6 47.9 0/21 47.6 47.9 48.2 0/21 47.6 48.0 48.3 0/21
>68.05 0 0 0 0/
740		 0 0 0 0/
345		 0 0 0 0/
740		 0 0 0 0/
492		 0 0 0 0/
740		 0 0 0 0/
368		 0 0 0 0/
721		 0 0 0 0/
463		 0 0 0 0/
740

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.