Weather
Northern California Weather Alert: Rain Chances Return Oct 20-21
Sacramento, CA – A noticeable weather change is approaching California's capital region, with temperatures expected to fall nearly 20 degrees by Tuesday, Oct. 20, as rain chances return to Sacramento
By Cameron Hayes · 2026-10-16T11:02:55.826Z
Sacramento, CA – A noticeable weather change is approaching California's capital region, with temperatures expected to fall nearly 20 degrees by Tuesday, Oct. 20, as rain chances return to Sacramento after several days of warm, sunny conditions. Afternoon highs near 86 degrees Friday and Saturday will give way to temperatures in the upper 60s by Tuesday, bringing a distinctly cooler feel to the Sacramento Valley. The shift could affect outdoor plans, commuting conditions and residents preparing for a change from the recent stretch of dry weather.
According to the National Weather Service in Sacramento, temperatures are expected to reach approximately 70 degrees Monday before falling to around 67 Tuesday. A slight chance of rain is forecast Tuesday, followed by additional rain chances Tuesday night and Wednesday. While the outlook signals a transition toward cooler, potentially wetter conditions, the forecast does not specify rainfall totals or precipitation probabilities, leaving uncertainty about how much rain could actually reach the city.
Sacramento Faces a Noticeable Temperature Drop The approaching cooldown follows an unusually warm feeling stretch for mid October, with sunshine and afternoon highs near 86 degrees expected Friday and Saturday. Sunday remains warm, reaching approximately 82 degrees before temperatures begin falling more noticeably. By Monday, highs should settle near 70 degrees, representing a 12 degree decline from Sunday's expected afternoon temperature.
Tuesday brings the coolest afternoon of the forecast period, with temperatures reaching only about 67 degrees. That is a 19 degree difference from Saturday's expected high, although the change occurs gradually over several days rather than during a single afternoon. Overnight temperatures also trend cooler, falling from the lower 50s during the weekend to around 50 degrees early next week.
Rain Chances Could Affect Midweek Plans The return of rain chances Tuesday introduces another important change for Sacramento residents. After several days of dry weather, even light precipitation could create damp pavement and affect outdoor activities, depending on where showers develop. Motorists traveling along Interstate 5, Interstate 80, Highway 50 and other major Sacramento area routes may want to monitor conditions as the wetter period approaches.
However, the National Weather Service has not indicated significant rainfall, flooding or widespread travel disruptions in the supplied forecast. The outlook identifies only a slight chance of rain Tuesday, with a chance continuing Tuesday night and Wednesday. Residents should avoid assuming a major storm is approaching based solely on the possibility of precipitation.
The changing weather could also influence outdoor events, construction activities and recreation throughout Sacramento County. Residents planning activities Tuesday or Wednesday may benefit from checking updated forecasts closer to the event, particularly because the timing and coverage of any rainfall remain uncertain. Cooler afternoons will also make conditions feel noticeably different from the warm weekend.
Temperatures Stabilize Later in the Week Wednesday is expected to bring mostly sunny skies, a slight chance of rain and a high near 70 degrees. Temperatures should fall to approximately 49 degrees Wednesday night, with another slight chance of rain possible. The forecast suggests that unsettled conditions may linger even as daytime temperatures begin recovering from Tuesday's cooler weather.
By Thursday, sunshine is expected to return more consistently, with a high near 70 degrees. The supplied forecast does not indicate another significant temperature swing or major weather event through Thursday. For Sacramento residents, the primary development remains the transition from weekend warmth to cooler conditions and possible rainfall during the first half of next week.
Are you looking forward to Sacramento's cooler temperatures, or would you prefer the warmer weekend weather to continue?
Five Day Sacramento Weather Outlook Saturday 10/17: Sunny skies are expected across Sacramento, with an afternoon high near 86 degrees and light, variable winds; clear conditions continue Saturday night as temperatures fall to approximately 53 degrees.
Sunday 10/18: Another sunny day is forecast, although temperatures ease slightly to around 82 degrees; mostly clear skies follow Sunday night with a low near 51 degrees as cooler weather approaches.
Monday 10/19: Mostly sunny skies continue, but afternoon temperatures fall to approximately 70 degrees, marking a noticeable cooldown from the weekend; mostly cloudy conditions develop Monday night with a low near 50.
Tuesday 10/20: A slight chance of rain returns under partly sunny skies, with a high near 67 degrees; additional rain chances continue Tuesday night as temperatures fall to approximately 50 degrees.
Wednesday 10/21: Mostly sunny skies are expected with a slight chance of rain and a high near 70 degrees; partly cloudy conditions follow Wednesday night with another slight rain chance and a low near 49.
Additional Outlook Through Thursday Thursday, Oct. 22, is expected to bring sunny skies and an afternoon high near 70 degrees, suggesting more stable weather after the midweek rain chances.