Current Conditions and Heat Index
Sherman is currently under the influence of dangerous heat and oppressive humidity. The air temperature stands at 90F, but the heat index makes it feel like 100F. This significant disparity is driven by a dew point of 75F and relative humidity of 63%, creating a muggy atmosphere that can make outdoor activity feel strenuous. Winds are blowing from the south at 13 mph, with gusts reaching 21 mph, providing minimal relief from the warmth. The sky remains partly cloudy as the afternoon progresses.
Forecast for Today and Tonight
The National Weather Service indicates that today will remain sunny with a high near 91F. Heat index values are expected to reach as high as 99F. South winds will average around 15 mph, with gusts potentially hitting 25 mph. The chance of precipitation is only 4%, so dry conditions will persist through the day.
As evening transitions into tonight, skies will become mostly clear with a low around 78F. The heat index may climb to 100F. A slight chance of showers and thunderstorms is possible between 1am and 4am, followed by a general chance of storms later in the night. South winds will continue at 10 to 15 mph, with gusts up to 25 mph. The chance of precipitation is 30%, with new rainfall amounts less than a tenth of an inch possible.
Tomorrow’s Storm Potential
Conditions will shift tomorrow with a high near 91F and partly sunny skies. A chance of showers and thunderstorms is expected before 7am, continuing throughout the day. The heat index will reach 99F. South winds will decrease to around 10 mph. The chance of precipitation rises to 40%, with new rainfall amounts between a tenth and quarter of an inch possible.