textproduct: Paducah

KEY MESSAGES

- A Heat Advisory remains in effect through Sunday as near record to record breaking heat continues, with both highs and lows from 14 to near 20 degrees above normal. Highs through this period will be in the middle 90s to around 100 degrees.

- Temperatures will start to trend downward Monday, with highs several degrees lower than Sunday, but the real break in the heat arrives Tuesday and especially Wednesday, with highs mostly in the middle 80s to 90 degrees.

- A few afternoon showers and storms (20-40% chances) are possible Friday mainly across southwest Indiana and adjacent areas of southeast Illinois and northwest Kentucky.

- 20-40% chances of showers and thunderstorms can be expected Monday afternoon through Tuesday night with the passage of a weak cold front.

DISCUSSION

Issued at 1259 AM CDT Thu Sep 17 2026

An upper level high will remain over the southeast/south central U.S. through the weekend. The upper level ridging over our region will continue the near record to record heat through Sunday, with highs in the middle 90s to around 100 degrees, and lows from around 70 to the middle 70s. These values are 14 to near 20 degrees above normal, and the Heat Advisory will remain in effect through Sunday.

A weak surface boundary sitting to our north may dip far enough south Friday to produce a few showers or storms in the afternoon, mainly in southwest Indiana and adjacent areas of southeast Illinois and northwest Kentucky. The model blend produces 20-40% chances, with the best chances along and north of Interstate 64.

Over the weekend, the upper ridge will slowly start breaking down as an upper low over the northwestern U.S. slowly pushes eastward. The low will move over the Great Lakes region by 12z Tuesday with a weak trof extending southward, while a weak surface low/cold front pushes through the middle Mississippi and lower Ohio valleys Monday into Tuesday. The model blend spreads 30-40% chances of showers and thunderstorms across the PAH forecast area Monday afternoon through Monday evening, with 20-30% chances continuing late Monday night through Tuesday evening. Isolated chances will persist into Wednesday.

AVIATION /06Z TAFS THROUGH 06Z FRIDAY/

Issued at 1259 AM CDT Thu Sep 17 2026

MVFR fog may develop between 08z-12z, mainly at KCGI/KPAH. Outside of this, VFR conditions expected through the TAF period. Calm to south winds around 5 kts will become southwest at 5-8kts after 13z.

PAH WATCHES/WARNINGS/ADVISORIES

IL...Heat Advisory until 7 PM CDT Sunday for ILZ075>078-080>094. MO...Heat Advisory until 7 PM CDT Sunday for MOZ076-086-087-100- 107>112-114. IN...Heat Advisory until 7 PM CDT /8 PM EDT/ Sunday for INZ081-082- 085>088. KY...Heat Advisory until 7 PM CDT Sunday for KYZ001>022.