Current Conditions and Humidity
The air in Sherman remains quite heavy with moisture this evening. Current readings show an air temperature of 79F, but the heat index feels significantly warmer at 83F. This discrepancy is driven by a dew point of 73F and a relative humidity level of 82%. Despite the muggy atmosphere, the sky remains clear with winds blowing from the south southeast at 8 mph, occasionally gusting up to 15 mph.
Forecast Overview
Looking ahead, conditions will shift from the current mugginess to intense heat. Today is expected to be mostly cloudy with a high near 81F and a low near 75F. The chance of precipitation is minimal at just 3%.
Tomorrow brings a dramatic change in temperature. The sky will turn mostly sunny, and the high will climb to near 92F. The National Weather Service indicates heat index values will reach as high as 99F. Winds will shift to the south southwest, ranging from 5 to 10 mph with gusts potentially hitting 20 mph. This combination of high heat and humidity creates dangerous conditions for prolonged outdoor exposure.
Overnight into tomorrow night, the heat will persist with temperatures rising to around 77F. A chance of showers and thunderstorms is expected between 1am and 4am, followed by a continued chance of storms later in the night. Skies will be partly cloudy with a low around 74F. Winds will increase slightly to around 10 mph from the south southwest. While new rainfall amounts are expected to be less than a tenth of an inch, the 40% chance of precipitation suggests scattered activity.