Jackson, Miss. – The air already feels heavy across central Mississippi, and by late morning the heat is rapidly tightening its grip. Sunshine, high humidity and light winds will combine to create dangerous conditions through the afternoon, making today one of the hottest stretches of the week.
According to the National Weather Service in Jackson, a Heat Advisory is in effect from 10 a.m. Monday through 9 p.m. Tuesday for much of central and southern Mississippi and portions of northeast Louisiana. Afternoon temperatures will climb to around 98 degrees, while humidity pushes heat index values as high as 109 degrees today and up to 112 degrees Tuesday.
The combination of intense heat and warm nights will provide little relief. Outdoor workers, athletes and anyone spending extended time outside should take frequent breaks, drink plenty of water and seek air-conditioned spaces whenever possible. Check on older adults, neighbors and anyone without reliable cooling.
A stray thunderstorm cannot be ruled out after 5 p.m. Monday, but rain coverage will remain limited. Most communities will stay hot and mostly sunny through the day. By Tuesday afternoon, another isolated round of showers and thunderstorms may develop after 1 p.m., offering only localized cooling.
While severe weather is not expected today, the broader weather pattern across the Lower Mississippi Valley will continue supporting dangerous heat before gradually easing later in the week. Wednesday remains very warm with highs near 99 degrees, followed by slightly lower temperatures Thursday as highs settle into the middle 90s.
Travelers along Interstate 55, Interstate 20 and U.S. Highway 49 should keep extra water in their vehicles and avoid leaving children or pets inside parked cars, even for a short time.
Five-Day Forecast for Jackson, Mississippi
- Monday: High 98°F. Mostly sunny and hot. Slight chance of an evening thunderstorm. Heat index near 109°F.
- Tuesday: High 99°F. Hot with a slight afternoon storm chance. Heat index near 112°F.
- Wednesday: Hot and sunny. High 99°F.
- Thursday: Sunny. High 95°F.
- Friday: Mostly sunny. High 96°F.
