044
FXUS63 KILX 181735
AFDILX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LINCOLN IL
1235 PM CDT THU JUN 18 2026
KEY MESSAGES
- QUIET AND COOL WEATHER WILL PREVAIL TODAY THROUGH SATURDAY... WITH
THE NEXT CHANCE FOR THUNDERSTORMS ARRIVING BY SUNDAY.
DISCUSSION
ISSUED AT 227 AM CDT THU JUN 18 2026
THANKFULLY, AFTER YESTERDAY, OUR FORECAST IS PRETTY BENIGN THROUGH
SATURDAY AFTERNOON. THERE COULD BE SOME LIGHT SHOWERS THIS MORNING
AS A SHORTWAVE PUSHES THROUGH, ALSO BRINGING SOME CLOUD COVER AS
WELL.
TEMPERATURES WILL BE COOL FOR SUMMER TODAY WITH HIGHS IN THE 70S,
WARMEST NEAR LAWRENCEVILLE NEARING 80. THE REST OF THE EXTENDED
FORECAST THROUGH THE NEXT WEEK, TEMPERATURES WILL REMAIN
SLIGHTLY BELOW NORMAL. HIGHS IN THE MID 70S TO LOW 80S AND LOWS
IN THE MID 50S TO MID 60S.
THE NEXT DECENT CHANCE FOR RAIN ARRIVES SATURDAY EVENING INTO SUNDAY
NIGHT AS A SHORTWAVE PUSHES INTO THE STATE FROM THE WEST. ON SUNDAY,
THERE IS A 70-90% CHANCE FOR SHOWERS AND THUNDERSTORMS. PWATS ARE
AROUND 1.8-2.2 INCHES, SO FLOODING COULD BECOME AN ISSUE AGAIN
SUNDAY. QPF IS FORECAST TO BE 1.5-3 INCHES. WPC HAS A MARGINAL RISK
ERO FOR NORTH OF I-72 AND A SLIGHT RISK ERO SOUTH OF I-72 FOR
SUNDAY. AT THE TIME OF THIS FORECAST, SEVERE WEATHER IS NOT
EXPECTED. AFTER SUNDAY NIGHT, THE FORECAST IS DRY UNTIL MID/LATE
WEEK NEXT WEEK WHEN SOME 10-30% POPS ARE INTRODUCED.
AVIATION /18Z TAFS THROUGH 18Z FRIDAY/
ISSUED AT 1235 PM CDT THU JUN 18 2026
A BAND OF MID-LEVEL CLOUDINESS AND SCATTERED SPRINKLES HAS
SETTLED SOUTH OF THE I-72 TERMINALS EARLY THIS AFTERNOON.
MEANWHILE SCT-BKN DIURNAL CU HAS BEEN RAPIDLY FORMING ACROSS THE
NORTHERN HALF OF THE AREA. WHILE CEILINGS HAVE GENERALLY BEEN
VFR, A POCKET OF MVFR HAS FORMED ALONG THE PERIPHERY OF THE CU-
FIELD AT BOTH KDEC AND KCMI. THINK CLOUD BASES WILL CLIMB TO VFR
OVER THE NEXT COUPLE OF HOURS, BUT HAVE INCLUDED A TEMPO GROUP
FOR MVFR THROUGH 20Z AT THOSE TWO SITES ACCORDINGLY. THE CLOUD
COVER WILL DISSIPATE TOWARD SUNSET, WITH MOSTLY CLEAR SKIES
EXPECTED TONIGHT. WINDS WILL INITIALLY BE W/NW AT AROUND 10KT
THIS AFTERNOON, THEN WILL BECOME LIGHT/VARIABLE TONIGHT BEFORE
RESUMING W AT AROUND 10KT FRIDAY MORNING.
ILX WATCHES/WARNINGS/ADVISORIES
NONE.
KEY MESSAGES...COPPLE
DISCUSSION...COPPLE
AVIATION...BARNES
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page