154
FNUS53 KILX 181852
FWFILX
FIRE WEATHER PLANNING FORECAST FOR CENTRAL/SOUTHEAST ILLINOIS
NATIONAL WEATHER SERVICE LINCOLN IL
152 PM CDT FRI SEP 18 2026
DISCUSSION
PERIODS OF SHOWERS AND THUNDERSTORMS WILL CONTINUE THE REMAINDER
OF THE AFTERNOON ALONG THE I-74 CORRIDOR, WHILE ISOLATED STORMS
FORM SOUTH OF I-70 AS THE DAY PROGRESSES. GOING THROUGH THE
WEEKEND, RAIN CHANCES WILL BE MOST WIDESPREAD NORTH OF I-72,
WHILE IT MAY TAKE UNTIL SUNDAY TO GET MORE RAIN SOUTH OF I-70.
MUCH COOLER WEATHER WILL FINALLY ARRIVE EARLY NEXT WEEK, THOUGH
WIDESPREAD RAIN WILL ACCOMPANY ITS ARRIVAL ON MONDAY.
ILZ027>031-036-037-190915-
KNOX-STARK-PEORIA-MARSHALL-WOODFORD-FULTON-TAZEWELL-
INCLUDING THE CITIES OF GALESBURG, TOULON, PEORIA, LACON, EUREKA,
CANTON, AND PEKIN
152 PM CDT FRI SEP 18 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY MCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS TSTMS
CHANCE PRECIP (%) 0 30 60 70
CHANCE OF THUNDER (%) 0 20 30 20
TEMP (24H TREND) 67 (-1) 88 (+9) 66 77
RH % (24H TREND) 100 (+6) 60 (-16) 100 81
WIND 20FT/EARLY(MPH) E 6 SE 5 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SE 6 S 6 LGT/VAR NE 8 G17
PRECIP AMOUNT 0.00 0.12 0.22 0.20
PRECIP DURATION 1 4 9
PRECIP BEGIN 6 AM 6 PM CONTINUING
PRECIP END 3 PM CONTINUING CONTINUING
MIXING HGT(FT-AGL) 2220 2640
1700FT MIXING TEMP 81 77
TRANSPORT WND (MPH) S 13 NE 15
VENT RATE (MPH-FT) 28860 39600
VENT RATE CATEGORY POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 60S.
MINIMUM RH 80 PERCENT. NORTHEAST WINDS AROUND 10 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE
MID 60S. MINIMUM RH 71 PERCENT. NORTHEAST WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS AROUND 50. HIGHS IN THE UPPER
60S. MINIMUM RH 69 PERCENT. NORTH WINDS AROUND 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS AROUND
70. MINIMUM RH 70 PERCENT. NORTH WINDS AROUND 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER
70S. MINIMUM RH 67 PERCENT. NORTH WINDS AROUND 5 MPH.
ILZ038-043>046-190915-
MCLEAN-DE WITT-PIATT-CHAMPAIGN-VERMILION-
INCLUDING THE CITIES OF BLOOMINGTON, NORMAL, CLINTON, MONTICELLO,
CHAMPAIGN, URBANA, AND DANVILLE
152 PM CDT FRI SEP 18 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY MCLDY PCLDY MCLDY
PRECIP TYPE NONE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 0 30 40 60
CHANCE OF THUNDER (%) 0 20 20 0
TEMP (24H TREND) 66 (-3) 88 (+7) 67 84
RH % (24H TREND) 100 (+3) 55 (-18) 99 67
WIND 20FT/EARLY(MPH) E 6 S 6 S 5 N 5
WIND 20FT/LATE(MPH) SE 6 S 6 S 5 N 8
PRECIP AMOUNT 0.00 0.07 0.16 0.10
PRECIP DURATION 1 2 5
PRECIP BEGIN 7 AM 6 PM CONTINUING
PRECIP END 4 PM CONTINUING CONTINUING
MIXING HGT(FT-AGL) 2700 2690
1700FT MIXING TEMP 83 81
TRANSPORT WND (MPH) SW 12 NE 14
VENT RATE (MPH-FT) 32400 37660
VENT RATE CATEGORY POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 60S.
MINIMUM RH 76 PERCENT. NORTHEAST WINDS AROUND 10 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE
UPPER 60S. MINIMUM RH 69 PERCENT. NORTHEAST WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 60S. MINIMUM RH 66 PERCENT. NORTH WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 70S. MINIMUM RH 63 PERCENT. NORTH WINDS AROUND 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE LOWER
70S. MINIMUM RH 60 PERCENT. NORTH WINDS AROUND 5 MPH.
ILZ040>042-047>053-190915-
SCHUYLER-MASON-LOGAN-CASS-MENARD-SCOTT-MORGAN-SANGAMON-CHRISTIAN-
MACON-
INCLUDING THE CITIES OF RUSHVILLE, HAVANA, LINCOLN, BEARDSTOWN,
PETERSBURG, WINCHESTER, JACKSONVILLE, SPRINGFIELD, TAYLORVILLE,
AND DECATUR
152 PM CDT FRI SEP 18 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY MCLDY
PRECIP TYPE NONE NONE TSTMS TSTMS
CHANCE PRECIP (%) 0 0 30 60
CHANCE OF THUNDER (%) 0 0 20 20
TEMP (24H TREND) 70 (-1) 93 (+6) 68 86
RH % (24H TREND) 99 (+3) 42 (-23) 97 58
WIND 20FT/EARLY(MPH) E 6 S 6 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SE 5 SW 6 LGT/VAR N 5
PRECIP AMOUNT 0.00 0.00 0.07 0.07
PRECIP DURATION 1 5
PRECIP BEGIN 9 PM CONTINUING
PRECIP END CONTINUING CONTINUING
MIXING HGT(FT-AGL) 3940 2940
1700FT MIXING TEMP 86 83
TRANSPORT WND (MPH) W 12 NE 13
VENT RATE (MPH-FT) 47280 38220
VENT RATE CATEGORY FAIR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 70S.
MINIMUM RH 77 PERCENT. NORTHEAST WINDS AROUND 10 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE
UPPER 60S. MINIMUM RH 69 PERCENT. NORTHEAST WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 70S. MINIMUM RH 62 PERCENT. NORTH WINDS AROUND 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 70S. MINIMUM RH 61 PERCENT. NORTH WINDS AROUND 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE MID
70S. MINIMUM RH 60 PERCENT. NORTHEAST WINDS AROUND 5 MPH.
ILZ054>057-061>063-190915-
MOULTRIE-DOUGLAS-COLES-EDGAR-SHELBY-CUMBERLAND-CLARK-
INCLUDING THE CITIES OF SULLIVAN, TUSCOLA, CHARLESTON, MATTOON,
PARIS, SHELBYVILLE, GREENUP, AND MARSHALL
152 PM CDT FRI SEP 18 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE NONE TSTMS TSTMS SHOWERS
CHANCE PRECIP (%) 0 30 20 30
CHANCE OF THUNDER (%) 0 20 20 0
TEMP (24H TREND) 68 (-3) 92 (+2) 69 90
RH % (24H TREND) 100 (+4) 41 (-16) 89 47
WIND 20FT/EARLY(MPH) E 6 S 6 LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) SE 5 SW 6 S 5 NW 6
PRECIP AMOUNT 0.00 0.03 0.02 0.01
PRECIP DURATION 1 1 2
PRECIP BEGIN 10 AM 6 PM CONTINUING
PRECIP END 4 PM CONTINUING CONTINUING
MIXING HGT(FT-AGL) 4810 3440
1700FT MIXING TEMP 88 87
TRANSPORT WND (MPH) W 13 NW 12
VENT RATE (MPH-FT) 62530 41280
VENT RATE CATEGORY FAIR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE MID 70S.
MINIMUM RH 70 PERCENT. NORTHEAST WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE MID 50S. HIGHS AROUND 70.
MINIMUM RH 64 PERCENT. NORTHEAST WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 70S. MINIMUM RH 59 PERCENT. NORTH WINDS AROUND 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE
LOWER 70S. MINIMUM RH 55 PERCENT. NORTH WINDS AROUND 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE MID
70S. MINIMUM RH 53 PERCENT. NORTH WINDS AROUND 5 MPH.
ILZ066>068-071>073-190915-
EFFINGHAM-JASPER-CRAWFORD-CLAY-RICHLAND-LAWRENCE-
INCLUDING THE CITIES OF EFFINGHAM, NEWTON, ROBINSON, FLORA,
OLNEY, AND LAWRENCEVILLE
152 PM CDT FRI SEP 18 2026
TONIGHT SAT SAT NIGHT SUN
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE TSTMS NONE NONE SHOWERS
CHANCE PRECIP (%) 20 0 0 20
CHANCE OF THUNDER (%) 20 0 0 0
TEMP (24H TREND) 70 (-2) 95 (0) 70 94
RH % (24H TREND) 100 (+5) 37 (-13) 80 38
WIND 20FT/EARLY(MPH) E 5 LGT/VAR LGT/VAR LGT/VAR
WIND 20FT/LATE(MPH) LGT/VAR SW 6 LGT/VAR NW 5
PRECIP AMOUNT 0.04 0.00 0.00 0.01
PRECIP DURATION 0 1
PRECIP BEGIN 6 PM 1 PM
PRECIP END 9 PM CONTINUING
MIXING HGT(FT-AGL) 5790 4330
1700FT MIXING TEMP 91 90
TRANSPORT WND (MPH) SW 12 NW 12
VENT RATE (MPH-FT) 69480 51960
VENT RATE CATEGORY GOOD FAIR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE MID
60S. HIGHS IN THE LOWER 80S. MINIMUM RH 61 PERCENT. NORTHEAST
WINDS AROUND 5 MPH.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 50S. HIGHS IN THE MID 70S. MINIMUM RH
60 PERCENT. NORTH WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE MID
70S. MINIMUM RH 54 PERCENT. NORTH WINDS AROUND 5 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE MID
70S. MINIMUM RH 52 PERCENT. NORTH WINDS AROUND 5 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE MID
70S. MINIMUM RH 49 PERCENT. NORTHEAST WINDS AROUND 5 MPH.
GEELHART
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