San Franciscans feeling the heat wave’s grip can expect a slight reprieve heading into the weekend as forecasters announce a cooldown in the Bay Area. According to the National Weather Service (NWS) in San Francisco, CA, daytime temperatures are predicted to dip following the expiration of Heat Advisories, which will be in effect until 11 PM tonight for several inland areas. While today’s highs may still push into the 90s in some inland regions, the mercury will start its descent as we head towards Friday.