By Meteorologist Paul Williams
Monday, August 24, 2026
Good Monday, Simpson County!
We’re starting the new workweek with more clouds, a little less heat and a better opportunity for afternoon thunderstorms.
The National Weather Service forecast for the Simpson County area calls for temperatures climbing into the lower to middle 90s Monday afternoon, with the heat index still capable of reaching around 100 degrees in some locations. Winds will remain light, generally becoming north to northwest at around 5 mph during the afternoon.
MONDAY STORM WINDOW
The morning should offer the better opportunity for dry weather. As daytime heating builds, showers and thunderstorms are expected to become more numerous, particularly during the afternoon.
Around Mendenhall, the National Weather Service places the rain and thunderstorm probability at 50%, mainly after 2 p.m. Another Simpson County forecast specifically favors thunderstorms roughly between 2 and 5 p.m.
That means this is not an all-day washout. Instead, we’re looking at scattered thunderstorms developing in the heat of the afternoon.
Any stronger thunderstorm could produce brief torrential rainfall, frequent lightning and gusty winds. Because summertime thunderstorms can produce a lot of rain in a short period, watch for localized ponding or poor-drainage flooding beneath the heavier cells.
MONDAY NUMBERS
Morning: Warm and humid, generally in the 70s
Afternoon high: Approximately 93–97°F across Simpson County
Heat index: Potentially near 100–104°F, depending on location
Rain chance: Around 50%
Best storm opportunity: After 2 p.m. into the late afternoon
Monday night: Around 72–73°F, with a smaller chance of additional showers or thunderstorms.
WILLIAMS WEATHER WINDOW BOTTOM LINE
For Monday, heat early, storms later.
If you have outdoor work, practice, construction, farming or other activities planned, the morning through early afternoon looks like your better weather window.
Once we get beyond about 2 p.m., keep an eye on the western sky and radar because thunderstorms may develop fairly quickly.
And remember: When thunder roars, go indoors. Lightning can strike well away from the heaviest rainfall.
I’ll continue watching the radar and any changes in the severe-weather setup as we move into Monday.
That’s your Williams Weather Window for Simpson County, keeping an eye on the sky so you know what’s coming before it gets here.
