Sacramento drivers and residents should prepare for a burst of late-summer heat as temperatures climb into the mid-90s on Monday, September 22. The heat will push air conditioners and test road surfaces across the Valley, with potential slowdowns along I-5 and Highway 99 during the evening commute. Hydration and limited outdoor exposure remain key to avoiding heat-related illness.
According to the National Weather Service in Sacramento, Monday’s high will near 96°F under mostly sunny skies. Winds will remain light, offering little relief. Overnight lows dip only into the mid-60s, keeping homes warm and reducing overnight cooling.
Sunday will serve as a warm lead-in, with highs reaching 91°F and clear skies overnight. By Tuesday, the region stays hot, topping out near 92°F, before a slight chance of showers arrives late Tuesday night. This unsettled system may bring brief relief, though Wednesday will still hold in the upper 80s under partly sunny skies.
High pressure keeps conditions stable, but the heat raises concerns for vulnerable populations, outdoor workers, and commuters. Cooling centers may open if temperatures continue trending upward, and residents should monitor county alerts for updates. Those traveling across Central Valley roadways should anticipate hot pavement, vehicle stress, and the possibility of delays if showers develop Tuesday night.
The week trends downward in temperature by midweek, offering a more typical early fall pattern with highs in the upper 80s. Still, the early-week heat wave demands preparation. Limit strenuous activity during the hottest afternoon hours and check in on neighbors without reliable cooling.
Five-Day Forecast for Sacramento, CA
- Sunday: Sunny, high 91°F, low 63°F.
- Monday: Hot, high 96°F, low 64°F.
- Tuesday: Sunny, high 92°F, slight chance of showers at night, low 65°F.
- Wednesday: Mostly sunny, high 89°F, low 62°F.
- Thursday: Sunny, high 90°F, low 61°F.
