836
FNUS53 KILX 180930
FWFILX
FIRE WEATHER PLANNING FORECAST FOR CENTRAL/SOUTHEAST ILLINOIS
NATIONAL WEATHER SERVICE LINCOLN IL
330 AM CST THU DEC 18 2025
DISCUSSION
REMINDER: THE FIRE WEATHER SEASON FOR CENTRAL AND SOUTHEAST
ILLINOIS FORMALLY ENDED ON MONDAY, DECEMBER 15TH. UPDATES TO THIS
PRODUCT AND OTHER FIRE-RELATED PRODUCTS WILL ONLY BE ISSUED ONCE
PER DAY, EACH MORNING, UNTIL THE FIRE WEATHER SEASON RESUMES
AROUND FEBRUARY 15TH.
A WIDE VARIETY OF WEATHER IS IN STORE TODAY, ALBEIT NONE THAT IS
PARTICULARLY CONDUCIVE TO BURNING, ESPECIALLY GIVEN LINGERING
SNOW COVER ACROSS MUCH OF THE REGION. THE DAY WILL START OFF
GLOOMY, WITH LOW CLOUDS, FOG, AND DRIZZLE, AS WELL AS BREEZY
SOUTHERLY WINDS GUSTING 30-40 MPH. FROM LATE MORNING THROUGH MID-
AFTERNOON, A COLD FRONT WILL SWEEP FROM WEST TO EAST, TURNING
WINDS TO WESTERLY, BRINGING A HIGH CHANCE (NEAR 100%) OF RAIN, AND
USHERING IN SHARPLY COOLER AIR. TOTAL RAINFALL AMOUNTS BETWEEN
0.25-0.75" ARE EXPECTED. INTO THE EVENING, WEST- NORTHWESTERLY
WIND GUSTS INCREASE TO 40-45 MPH, AND THERE IS A 20-40% CHANCE OF
SNOW SHOWERS, WHICH COULD PRODUCE A QUICK COATING OF SNOW.
VENTILATION WILL BE BEST IN THE EVENING AS MIXING DEPTH AND WIND
SPEEDS INCREASE, BUT FUELS WILL LIKELY STILL BE DAMP FROM THE
EARLIER RAINS.
FRIDAY WILL BE COOLER, WITH HIGHS NEAR OR BELOW FREEZING, AND
WESTERLY WINDS TURNING TO SOUTHERLY OVER THE COURSE OF THE DAY.
VENTILATION WON'T BE SPECTACULAR, BUT IT WILL BE IMPROVED COMPARED
TO THE POOR CONDITIONS THROUGH THE FIRST HALF OF THIS WEEK.
ILZ027>031-036>038-182215-
KNOX-STARK-PEORIA-MARSHALL-WOODFORD-FULTON-TAZEWELL-MCLEAN-
INCLUDING THE CITIES OF GALESBURG, TOULON, PEORIA, LACON, EUREKA,
CANTON, PEKIN, BLOOMINGTON, AND NORMAL
330 AM CST THU DEC 18 2025
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY MCLEAR
PRECIP TYPE RAIN SNOW SHOWERS NONE
CHANCE PRECIP (%) 90 30 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 51 (+9) 10 (-24) 32
RH % (24H TREND) 72 (0) 88 (-9) 50
WIND 20FT/EARLY(MPH) SW 16 G33 W 19 G34 NW 11 G25
WIND 20FT/LATE(MPH) W 16 G32 W 18 G31 SW 7
PRECIP AMOUNT 0.34 0.01 0.00
PRECIP DURATION 8 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(FT-AGL) 1960 2160
1700FT MIXING TEMP 47 22
TRANSPORT WND (MPH) W 23 NW 26
VENT RATE (MPH-FT) 45080 56160
VENT RATE CATEGORY POOR FAIR
REMARKS...WIND SHIFT FROM SOUTH TO WEST AROUND 10 OR 11 AM.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY
MOSTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE MID
40S. MINIMUM RH 64 PERCENT. SOUTH WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. COLDER. LOWS IN THE LOWER 20S. HIGHS IN
THE LOWER 30S. MINIMUM RH 42 PERCENT. NORTHWEST WINDS AROUND
5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE
LOWER 40S. MINIMUM RH 53 PERCENT. EAST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS AROUND 50.
MINIMUM RH 82 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE MID 30S. HIGHS AROUND 50.
MINIMUM RH 82 PERCENT. NORTHWEST WINDS AROUND 5 MPH.
ILZ040>043-047>053-182215-
SCHUYLER-MASON-LOGAN-DE WITT-CASS-MENARD-SCOTT-MORGAN-SANGAMON-
CHRISTIAN-MACON-
INCLUDING THE CITIES OF RUSHVILLE, HAVANA, LINCOLN, CLINTON,
BEARDSTOWN, PETERSBURG, WINCHESTER, JACKSONVILLE, SPRINGFIELD,
TAYLORVILLE, AND DECATUR
330 AM CST THU DEC 18 2025
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY MCLEAR
PRECIP TYPE RAIN SNOW SHOWERS NONE
CHANCE PRECIP (%) 90 20 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 52 (+7) 14 (-22) 34
RH % (24H TREND) 65 (-2) 85 (-13) 46
WIND 20FT/EARLY(MPH) S 17 G32 W 18 G34 W 10 G24
WIND 20FT/LATE(MPH) W 14 G30 W 18 G31 SW 6
PRECIP AMOUNT 0.35 0.01 0.00
PRECIP DURATION 6 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(FT-AGL) 2120 2210
1700FT MIXING TEMP 49 26
TRANSPORT WND (MPH) W 23 NW 26
VENT RATE (MPH-FT) 48760 57460
VENT RATE CATEGORY FAIR FAIR
REMARKS...WIND SHIFT FROM SOUTH TO WEST BETWEEN 10 AM AND 1 PM.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY
MOSTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE
UPPER 40S. MINIMUM RH 58 PERCENT. SOUTH WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. COLDER. LOWS IN THE LOWER 20S. HIGHS IN
THE MID 30S. MINIMUM RH 43 PERCENT. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE LOWER
40S. MINIMUM RH 51 PERCENT. EAST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY CLOUDY. WARMER. LOWS IN THE MID 30S. HIGHS IN
THE LOWER 50S. MINIMUM RH 78 PERCENT. SOUTH WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
MID 50S. MINIMUM RH 79 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
ILZ044>046-054>057-061-182215-
PIATT-CHAMPAIGN-VERMILION-MOULTRIE-DOUGLAS-COLES-EDGAR-SHELBY-
INCLUDING THE CITIES OF MONTICELLO, CHAMPAIGN, URBANA, DANVILLE,
SULLIVAN, TUSCOLA, CHARLESTON, MATTOON, PARIS, AND SHELBYVILLE
330 AM CST THU DEC 18 2025
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY MCLEAR
PRECIP TYPE RAIN SHOWERS NONE
CHANCE PRECIP (%) 100 40 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 52 (+7) 14 (-21) 31
RH % (24H TREND) 75 (+5) 94 (0) 53
WIND 20FT/EARLY(MPH) S 18 G34 W 14 G29 W 13 G24
WIND 20FT/LATE(MPH) SW 15 G34 W 18 G31 SW 7
PRECIP AMOUNT 0.49 0.01 0.00
PRECIP DURATION 8 2
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(FT-AGL) 1540 2570
1700FT MIXING TEMP 51 24
TRANSPORT WND (MPH) W 28 NW 29
VENT RATE (MPH-FT) 43120 74530
VENT RATE CATEGORY POOR GOOD
REMARKS...WIND SHIFT FROM SOUTH TO WEST BETWEEN NOON AND 3 PM.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE
MID 40S. MINIMUM RH 61 PERCENT. SOUTH WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. COLDER. LOWS IN THE LOWER 20S. HIGHS IN
THE MID 30S. MINIMUM RH 45 PERCENT. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS AROUND 40.
MINIMUM RH 51 PERCENT. EAST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY CLOUDY. WARMER. LOWS IN THE LOWER 30S. HIGHS IN
THE LOWER 50S. MINIMUM RH 85 PERCENT. SOUTHWEST WINDS AROUND
5 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 50S. MINIMUM RH 83 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
ILZ062-063-066>068-071>073-182215-
CUMBERLAND-CLARK-EFFINGHAM-JASPER-CRAWFORD-CLAY-RICHLAND-LAWRENCE-
INCLUDING THE CITIES OF GREENUP, MARSHALL, EFFINGHAM, NEWTON,
ROBINSON, FLORA, OLNEY, AND LAWRENCEVILLE
330 AM CST THU DEC 18 2025
TODAY TONIGHT FRI
CLOUD COVER MCLDY MCLDY MCLEAR
PRECIP TYPE TSTMS SNOW SHOWERS NONE
CHANCE PRECIP (%) 100 20 0
CHANCE OF THUNDER (%) 20 0 0
TEMP (24H TREND) 54 (+1) 19 (-25) 35
RH % (24H TREND) 70 (+16) 95 (+7) 47
WIND 20FT/EARLY(MPH) S 16 G33 W 11 G26 W 11 G23
WIND 20FT/LATE(MPH) SW 16 G34 W 17 G28 SW 6
PRECIP AMOUNT 0.51 0.01 0.00
PRECIP DURATION 7 1
PRECIP BEGIN 6 AM CONTINUING
PRECIP END CONTINUING 3 AM
MIXING HGT(FT-AGL) 1590 2880
1700FT MIXING TEMP 54 29
TRANSPORT WND (MPH) S 35 NW 29
VENT RATE (MPH-FT) 55650 83520
VENT RATE CATEGORY FAIR GOOD
REMARKS...WIND SHIFT FROM SOUTH TO WEST BETWEEN 2 PM AND 5 PM.
FORECAST FOR DAYS 3 THROUGH 7
SATURDAY
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS AROUND
50. MINIMUM RH 55 PERCENT. SOUTH WINDS AROUND 10 MPH.
SUNDAY
PARTLY CLOUDY. COLDER. LOWS IN THE MID 20S. HIGHS IN
THE UPPER 30S. MINIMUM RH 43 PERCENT. NORTHWEST WINDS AROUND
5 MPH.
MONDAY
MOSTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE LOWER
40S. MINIMUM RH 50 PERCENT. EAST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY CLOUDY. WARMER. LOWS IN THE UPPER 30S. HIGHS IN
THE MID 50S. MINIMUM RH 84 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE MID
50S. MINIMUM RH 82 PERCENT. SOUTHWEST WINDS AROUND 5 MPH.
ERWIN
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