Another heat advisory for Sacramento before Northern California weather expected to cool down

Another heat advisory remained in effect Monday in the Sacramento region, but forecasters expect the weather in Northern California to gradually cool down over the next several days.

The risk of heat-related illness was characterized as “moderate to major” again on Monday throughout Northern California with officials urging residents to stay hydrated and in a cool place during the warmest times of the day, according to the National Weather Service in Sacramento .

Those working outside were cautioned to take plenty of breaks and find shade. This level of heat affects most people sensitive to heat, especially those without effective cooling and adequate hydration, according to the weather service. Residents were urged to reduce time in the sun between 10 a.m. and 6 p.m.

High temperatures throughout the region were expected to be in the upper 90s to triple-digits, so a heat advisory will remain in effect through 11 p.m. Monday.

The heat advisory issued by the weather service included the southern and central Sacramento Valley, the Northern San Joaquin Valley, the Delta and the adjacent foothills. The advisory stretched from Stanislaus County, including Modesto, to Chico in Butte County.

The high temperature reached 99 degrees Sunday in downtown Sacramento, just under the record high of 102 degrees in 1987, according to the weather service. The high temperature of 100 degrees on Sunday at the Sacramento Executive Airport surpassed the previous record high of 98 degrees in 1987.

Red Bluff had a new record high of 103 degrees on Sunday: topping 102 reached in 1987, according to the weather service. Stockton hit 100 degrees on Sunday; the previous record high there was 97 in 1947. And Modesto reached a new record high of 99 on Sunday, surpassing the previous record of 97 in 1987.

A high temperature of 99 degrees on Monday was expected in Sacramento, the record high is 100 which was reached in 1980. There’s no sign the overnight low temperature in Sacramento will be anywhere near the record low of 41 degrees on Oct. 7, 1881, but forecasters say the overnight low will gradually cool down this week.

The overnight lows will remain warm for the first few days this week, before the gradual cooling trend begins later in the week in Northern California, according to the weather service. Overnight low temperatures will remain in the low 60s through Thursday in Sacramento, before slightly dipping to 59 degrees on Friday and Saturday.

In Auburn, Modesto and Vacaville, the overnight lows were expected in the low 70s and high 60s through Tuesday, before dropping to the low 60s at the end of the week.