A look at the high temperatures for today, Sunday, September 20, 2026. Seasonable high temperatures in the forecast for the area, with highs in the mid 80s to low 90s in the Valley, cooler 70s to low 80s in the higher elevations.
Daytime humidity values will be in the teens to low 20s at times the rest of the week, with the lowest humidity values expected on Thursday. Onshore flow will help with overnight recoveries across interior NorCal.
While mostly dry weather is expected the next 7 days, an area of low pressure will move through Central California Monday, prompting a non-zero chance of t-storms, mainly south of HWY-50. Chances are 5-10%, and confidence is low on any development.