NWS Forecast Office San Diego, CA

Slight uptick in temperatures.

Moderate HeatRisk this Sunday for the Inland Empire and deserts. Temperatures will range mainly between 95-100°F on Sunday in the IE, more likely than not (60%) exceeding 100°F in the San Bernardino city area. Low temperatures Sunday night will fall to the mid- 60s, providing some overnight relief. For the low deserts, Sunday temperatures will range between 110-115°F in the low deserts with some areas locally exceeding 115°F. In combination with overnight temperatures staying around 80°F, there will be areas of locally high HeatRisk.