Area Forecast Discussion
Issued by NWS Sacramento, CA
Issued by NWS Sacramento, CA
836 FXUS66 KSTO 071841 AFDSTO Area Forecast Discussion National Weather Service Sacramento CA 1141 AM PDT Sun Jun 7 2026 For additional details on weather and expected impacts over the next 7 days, please visit weather.gov/sto/briefing. .KEY MESSAGES... -Elevated Fire Weather conditions in the Sacramento Valley continue today due to breezy winds and low humidity. Biggest impacts in the northern Sac Valley. -Significant warm up starting mid-week brings potential for triple digits into the weekend. -Gusty north winds and low humidity will lead to Elevated Fire Weather Conditions in the Valley late in the week. && .DISCUSSION... ...Today... Near normal temperatures continue today, with mid to upper 80s expected in the Valley, Delta, and lower foothills. Daytime humidities remain low, generally between 10 and 25% (lowest in the northern Sacramento Valley). This, in combination with lingering gusty winds means elevated fire weather conditions remain in the northern Sacramento Valley through the afternoon and early evening. ...Monday and Tuesday... Precipitation chances for Monday and Tuesday have virtually disappeared with the most recent forecast update. Temperatures will remain near normal through Tuesday (low to mid 80s for the Valley), with a slight increase to daytime relative humidities. The Delta and adjacent portions of the Valley will see breezy to gusty winds on Monday afternoon/evening (65 to 90% chance of 30 mph or higher gusts in the Delta, 30 to 50% in the nearby Valley), though minimal impacts are expected currently. ...Wednesday through Saturday... Northerly winds increase as the early-week trough shifts into the Great Basin. Gusty winds and low humidity will bring increased fire weather concerns across the Valley, Delta, and lower foothills, especially Wednesday and Thursday. To this point, we have issued a Fire Weather Watch from 11am Wednesday to 5pm Thursday. Temperatures trend higher starting mid-week as well, with widespread Moderate HeatRisk, areas of Major HeatRisk, and potential for triple digit high temperatures in the Valley, Delta, and lower foothills through the weekend. && .AVIATION... VFR conditions over the next 24 hours. Northwest surface wind gusts 15 to 20 kts in the northern Sacramento Valley until 22Z Sunday. West wind gusts 15 to 20 kts in the vicinity Delta after 21Z Sunday. Sustained winds 12 kts or less elsewhere. && .STO WATCHES/WARNINGS/ADVISORIES... Fire Weather Watch from Wednesday morning through Thursday afternoon for Butte County Below 1000 ft-C. Solano County including Fairfield-C. Yolo/NE Solano including Woodland-Central Colusa County Incl. I-5-Central Glenn Co & Interstate 5-Eastern Colusa County-Eastern Glenn County-N. Sac Valley in Tehama County-Sac Metro/W. El Dorado/Amador County-Sacramento County Delta-Shasta Metro-Sutter/Yuba counties below 1000 ft-W. Yolo County including Capay/I-505. && $$