Solar radiation will reach dangerous levels, registering an Extreme UV Index of 11.0. The RealFeel maximum is forecasted at 108°F beneath southwest winds at 10 mph and a Very High UV Index of 9.0. 8-Day Weather Forecast Breakdown (July 28 – August 4)Date High / Low (°F) RealFeel High Rain Prob. Solar exposure will peak at an Extreme UV Index rating of 12.0. Light easterly winds at 5 mph will accompany a Very High UV Index of 9.0.