The region is under an excessive heat watch until Thursday

The first days of June bring the first triple-digit temperatures of the year.

Forecasters with the National Weather Service in Sacramento have issued an extreme heat warning, which will be in effect from Tuesday morning, June 4, through Thursday evening, June 6.

Dangerously hot conditions with temperatures of 95 to 107 degrees Celsius are possible, creating a widespread high heat risk. Limited nighttime relief is expected, with low temperatures only dropping into the 60s to mid 70s.

Areas affected include: Carquinez Strait and Delta, Central Sacramento Valley, Motherlode, the mountains from Southwest Shasta County to Western Colusa County, Northeast Foothills/Sacramento Valley, Northern Sacramento Valley, Northern San Joaquin Valley, Shasta Lake Area/ Northern Shasta County and Southern Sacramento Valley.

Heat-related illnesses increase significantly during extreme heat, especially for those who work or participate in outdoor activities.

Forecasters indicate that the highest temperatures are expected on Wednesday, June 5. The area’s waterways will remain cold and fast-flowing, creating dangerous conditions for those seeking relief in rivers and lakes.

Residents can take a number of precautions: drink plenty of fluids, stay in an air-conditioned room, stay out of the sun and check on relatives and neighbors.

Do not leave young children and pets in vehicles unattended. Car interiors reach deadly temperatures within minutes.

Local residents are also advised to keep an eye on the latest forecasts and alerts for updates.