*As of Jul 11, 8 AM local time.*
Current Conditions and Heat Index
Denison is experiencing a notably humid start to the day this morning. The air temperature sits at 77F, but the high relative humidity of 83% and a dew point of 72F make it feel warmer, with a feels-like temperature of 78F. Winds are blowing from the south southwest at 7 mph, with gusts reaching up to 19 mph, while the sky remains overcast.
As the sun breaks through, the heat will intensify significantly. Today is forecast to be sunny with a high near 98F. The National Weather Service indicates that heat index values will climb as high as 104 during the day. Winds will remain light, shifting to a south southwest direction at 5 to 10 mph. The low for today is near 77F. The chance of precipitation is minimal at just 2%.
Tomorrow’s Forecast and Storm Potential
Temperatures will ease slightly tomorrow, with a high near 93F. However, humidity will persist, keeping heat index values as high as 102. The sky will be mostly sunny, but the chance of rain increases to 42%.
A slight chance of showers and thunderstorms is expected between 7am and 1pm. This will be followed by a chance of showers and thunderstorms between 1pm and 4pm. After that, showers and thunderstorms remain a possibility. Temperatures are expected to fall to around 91 in the afternoon. South southwest winds will be light, ranging from 0 to 5 mph. New rainfall amounts between a tenth and quarter of an inch are possible.
Tonight, conditions will become partly cloudy with a low around 74F. A chance of showers and thunderstorms is likely before 1am, followed by a continued chance of showers and thunderstorms. Heat index values may reach as high as 100. East southeast winds will be calm, between 0 to 5 mph. The chance of precipitation rises to 50%, with another tenth to quarter of an inch of rain possible.
