Today's weather forecast for Salt Lake City is: Sunny, with a high near 91. Southwest wind around 10 mph Winds becoming west northwest later in the day. Tomorrow: A slight chance of showers before 11am. Then a slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind. Chance of precipitation is 20%. Tomorrow: A slight chance of showers before 11am. Then a slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind. Chance of precipitation is 20%. Tomorrow: A slight chance of showers before 11am. Then a slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81. Calm wind. Chance of precipitation is 20%.