Dangerous Heat and Humidity
Sherman is currently under the influence of dangerous heat conditions this afternoon. The air temperature stands at 91F, but the heat index makes it feel like 103F. This oppressive heat is driven by high moisture levels in the air, with a dew point of 75F and relative humidity at 59%. The sky is currently overcast, and winds are blowing from the south southwest at 15 mph, with gusts reaching 21 mph.
The National Weather Service indicates that heat index values can reach as high as 105 today. Temperatures are expected to peak near 93F. Despite the high heat, the chance of precipitation today is only 1%, with mostly sunny skies expected to persist. Tonight, conditions will shift slightly. A chance of showers and thunderstorms is possible between 10pm and 4am, followed by showers and thunderstorms likely. The sky will be mostly cloudy with a low near 76F. Temperatures may rise to around 78F overnight. Winds will decrease to south at 5 to 10 mph, and the heat index will remain high at 103F. There is a 60% chance of precipitation, with new rainfall amounts between a tenth and quarter of an inch possible.
Storms Expected Tomorrow
Tomorrow brings a significant change in weather. Showers and thunderstorms are likely before 7am, followed by a chance of showers and thunderstorms between 7am and 10am. Conditions will see showers and thunderstorms likely between 10am and 1pm, with a slight chance of showers and thunderstorms between 1pm and 4pm. The sky will be partly sunny, with a high near 88F. The heat index will be around 98F. Winds will be light, from the southeast around 5 mph. The chance of precipitation is 60%, with new rainfall amounts between a tenth and quarter of an inch possible. Tomorrow night will be partly cloudy with a low around 77F.
There are no active National Weather Service or NOAA weather alerts in effect for Sherman. However, the current heat and humidity pose serious health risks. Residents should hydrate frequently and limit midday exertion to avoid heat-related illnesses. As storms approach tomorrow, stay aware of changing conditions and seek shelter if necessary.