Area Forecast Discussion
Owens Valley / Mammoth Lakes / Mono County / Death Valley
Dennis Mattinson / Sierra Atmospheric Forecaster

Synopsis – WED AUG 20 2025

A nearly 600 dm ridge of high pressure across 4-corners, will bring both hot temperatures and Monsoon moisture to our area. The hot temps will stick around to the end of the work week and t-storm action will start about Friday, particularly over Mono County and the higher terrain of Inyo County. With that persistent Monsoon moisture in place, the threat of flash flooding is possible…DMATT

Area Wide Temperatures Today:

Bishop: 99 / 56
Big Pine: 99 / 63
Independence: 100 / 68
Lone Pine: 98 / 71
Olancha: 100 / 75
Mammoth Lakes: 78 / 53
Death Valley: 118 / 94