680
FNUS53 KLSX 211905
FWFLSX
FIRE WEATHER PLANNING FORECAST FOR EASTERN/CENTRAL MO AND SOUTHWEST IL
NATIONAL WEATHER SERVICE SAINT LOUIS MO
105 PM CST SUN DEC 21 2025
COOLER, BUT NEAR AVERAGE TEMPERATURES ARE EXPECTED TODAY, WITH
LIGHT EAST TO SOUTHEAST WINDS AND MODERATE TO LOW HUMIDITY.
SHALLOW INVERSION HEIGHTS AND LIGHT WINDS MAY LEAD TO POOR
VENTILATION CONDITIONS THROUGHOUT THE DAY. BREEZIER SOUTH WINDS
WILL HELP WITH THIS TOMORROW, BUT INVERSION HEIGHTS WILL REMAIN
SHALLOW AND CONTINUE TO HAMPER VENTILATION, ALONG WITH PERSISTENT
CLOUD COVER. A STEADY WARMUP IS EXPECTED MONDAY THROUGH THURSDAY,
WITH TEMPERATURES EVENTUALLY REACHING 25 TO 30 DEGREES ABOVE
AVERAGE THURSDAY AFTERNOON. WHILE WEAKER, VARIABLE WINDS ARE
EXPECTED TUESDAY, PERSISTENT BREEZY SOUTHWEST WINDS ARE EXPECTED
WEDNESDAY AND THURSDAY IN ADDITION TO THE WARMING TEMPERATURES,
WITH HIGH HUMIDITY EXPECTED AS WELL.
MOZ072-073-083-084-099-221000-
CRAWFORD MO-WASHINGTON MO-DENT MO-IRON MO-REYNOLDS MO-
INCLUDING THE CITIES OF POTOSI/SALEM RANGER DISTRICT AND SALEM
105 PM CST SUN DEC 21 2025
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 28 (-2) 57 (+9) 43 67
RH % (24H TREND) 72 (+2) 49 (+22) 100 67
WIND 20FT AM(MPH) S 3-7 G19 LGT/VAR
WIND 20FT PM(MPH) LGT/VAR S 4-8 G19 LGT/VAR LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 59 66
MIXING HGT(FT-AGL) 320 1620 470 2730
TRANSPORT WND (M/S) SE 4 S 8 W 5 SW 4
TRANSPORT WND (MPH) SE 8 S 17 W 10 SW 8
VENT RATE (M/S-M) 0 5400 90 4700
POOR MARGINAL POOR MARGINAL
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
MID 70S. SOUTHWEST WINDS 10 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS AROUND 70.
WEST WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
MID 60S. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. MUCH COOLER. LOWS IN THE LOWER 30S.
HIGHS IN THE MID 40S. NORTHWEST WINDS 5 TO 10 MPH.
MOZ074-075-085-221000-
SAINT FRANCOIS MO-SAINTE GENEVIEVE MO-MADISON MO-
INCLUDING THE CITIES OF FARMINGTON AND FREDERICKTOWN RANGER
DISTRICT
105 PM CST SUN DEC 21 2025
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 27 (-4) 54 (+7) 42 67
RH % (24H TREND) 78 (+10) 46 (+14) 100 67
WIND 20FT AM(MPH) S 4-8 G18 LGT/VAR
WIND 20FT PM(MPH) LGT/VAR S 5-9 G19 S 5-9 G17 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 60 67
MIXING HGT(FT-AGL) 240 1550 540 2650
TRANSPORT WND (M/S) E 3 S 8 SW 4 SW 3
TRANSPORT WND (MPH) E 6 S 18 SW 9 SW 7
VENT RATE (M/S-M) 0 5120 250 3630
POOR MARGINAL POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS AROUND
70. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
MID 70S. SOUTHWEST WINDS 10 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
LOWER 70S. WEST WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
MID 60S. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN. COOLER. LOWS IN
THE LOWER 30S. HIGHS IN THE MID 40S. NORTHWEST WINDS 5 TO 10 MPH.
MOZ041-047>050-221000-
BOONE MO-MONITEAU MO-COLE MO-OSAGE MO-CALLAWAY MO-
INCLUDING THE CITIES OF COLUMBIA, CEDAR CREEK RANGER DISTRICT,
JEFFERSON CITY, AND FULTON
105 PM CST SUN DEC 21 2025
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 31 (+5) 58 (+11) 43 65
RH % (24H TREND) 62 (-13) 52 (+22) 100 67
WIND 20FT AM(MPH) S 5-9 G19 LGT/VAR
WIND 20FT PM(MPH) SE 3-7 G16 S 5-9 G19 SW 3-7 G15 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 60 65
MIXING HGT(FT-AGL) 430 1840 440 1690
TRANSPORT WND (M/S) SE 5 S 7 W 5 SW 2
TRANSPORT WND (MPH) SE 12 S 15 W 10 SW 5
VENT RATE (M/S-M) 370 7210 360 2290
POOR FAIR POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLOUDY. LOWS AROUND 50. HIGHS IN THE LOWER
70S. SOUTH WINDS 10 TO 15 MPH.
THURSDAY
PARTLY CLOUDY. LOWS AROUND 60. HIGHS IN THE MID 70S.
SOUTHWEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. COOLER. LOWS IN THE LOWER 50S. HIGHS IN
THE MID 60S. WEST WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 60S. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. COLDER. LOWS IN THE UPPER 20S. HIGHS IN
THE LOWER 40S. NORTHWEST WINDS 5 TO 10 MPH.
MOZ051-059-060-062-065-221000-
MONTGOMERY MO-GASCONADE MO-WARREN MO-FRANKLIN MO-JEFFERSON MO-
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN
105 PM CST SUN DEC 21 2025
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 27 (+1) 58 (+12) 43 67
RH % (24H TREND) 73 (-3) 46 (+16) 100 65
WIND 20FT AM(MPH) S 3-7 G19 LGT/VAR
WIND 20FT PM(MPH) LGT/VAR S 4-8 G18 S 3-7 G15 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 63 66
MIXING HGT(FT-AGL) 360 1750 480 1930
TRANSPORT WND (M/S) SE 4 S 6 W 5 SW 3
TRANSPORT WND (MPH) SE 9 S 14 W 10 SW 6
VENT RATE (M/S-M) 100 5320 330 2820
POOR MARGINAL POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 70S. SOUTH WINDS 10 TO 15 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
MID 70S. SOUTHWEST WINDS 10 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE UPPER
60S. WEST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE
LOWER 60S. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. COLDER. LOWS AROUND 30. HIGHS IN THE
LOWER 40S. NORTHWEST WINDS 5 TO 10 MPH.
MOZ061-063-064-221000-
SAINT CHARLES MO-SAINT LOUIS MO-SAINT LOUIS CITY MO-
INCLUDING THE CITIES OF SAINT CHARLES AND SAINT LOUIS
105 PM CST SUN DEC 21 2025
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 26 (+1) 58 (+14) 44 64
RH % (24H TREND) 82 (+3) 45 (+11) 100 64
WIND 20FT AM(MPH) S 3-7 G16 LGT/VAR
WIND 20FT PM(MPH) LGT/VAR S 4-8 G16 S 3-7 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 65 68
MIXING HGT(FT-AGL) 330 1440 440 1650
TRANSPORT WND (M/S) SE 4 S 8 W 4 W 2
TRANSPORT WND (MPH) SE 8 S 17 W 9 W 5
VENT RATE (M/S-M) 200 4480 360 2190
POOR POOR POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
MID 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE UPPER
60S. WEST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 60S. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. COLDER. LOWS IN THE LOWER 30S. HIGHS IN
THE LOWER 40S. NORTHWEST WINDS 5 TO 10 MPH.
ILZ064-065-069-070-074-079-100>102-221000-
BOND IL-FAYETTE IL-CLINTON IL-MARION IL-WASHINGTON IL-RANDOLPH IL-
MADISON IL-SAINT CLAIR IL-MONROE IL-
INCLUDING THE CITIES OF VANDALIA, CENTRALIA, SALEM, CHESTER,
SPARTA, ALTON, EDWARDSVILLE, BELLEVILLE, AND CAHOKIA
105 PM CST SUN DEC 21 2025
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 25 (-2) 54 (+11) 43 65
RH % (24H TREND) 87 (+7) 43 (+4) 100 66
WIND 20FT AM(MPH) S 4-8 G17 SW 3-7
WIND 20FT PM(MPH) LGT/VAR S 7-11 G18 S 5-9 G16 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 61 68
MIXING HGT(FT-AGL) 250 1450 490 1770
TRANSPORT WND (M/S) SE 4 S 9 SW 5 W 3
TRANSPORT WND (MPH) SE 8 S 20 SW 10 W 6
VENT RATE (M/S-M) 130 5280 290 3220
POOR MARGINAL POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE
UPPER 60S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE
LOWER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
FRIDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE MID
60S. WEST WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE
LOWER 60S. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. COLDER. LOWS IN THE LOWER 30S. HIGHS IN
THE LOWER 40S. NORTHWEST WINDS 10 TO 15 MPH.
MOZ018-019-026-027-034>036-042-052-221000-
KNOX MO-LEWIS MO-SHELBY MO-MARION MO-MONROE MO-RALLS MO-PIKE MO-
AUDRAIN MO-LINCOLN MO-
INCLUDING THE CITIES OF HANNIBAL, BOWLING GREEN, AND MEXICO
105 PM CST SUN DEC 21 2025
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 26 (+4) 53 (+10) 40 60
RH % (24H TREND) 78 (-3) 52 (+13) 100 63
WIND 20FT AM(MPH) S 6-10 G20 LGT/VAR
WIND 20FT PM(MPH) SE 3-7 G16 S 6-10 G21 SW 3-7 G16 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 60 66
MIXING HGT(FT-AGL) 430 1460 500 1390
TRANSPORT WND (M/S) SE 5 S 8 W 5 NW 2
TRANSPORT WND (MPH) SE 12 S 17 W 12 NW 3
VENT RATE (M/S-M) 170 6540 310 1670
POOR FAIR POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
UPPER 60S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE
LOWER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLEAR. COOLER. LOWS IN THE UPPER 40S. HIGHS
AROUND 60. WEST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. LOWS AROUND 40. HIGHS IN THE MID 50S.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. COLDER. LOWS IN THE UPPER 20S. HIGHS
AROUND 40. NORTHWEST WINDS 5 TO 10 MPH.
ILZ095>098-221000-
ADAMS IL-BROWN IL-PIKE IL-CALHOUN IL-
INCLUDING THE CITIES OF QUINCY, MOUNT STERLING, AND PITTSFIELD
105 PM CST SUN DEC 21 2025
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 27 (+4) 51 (+9) 40 59
RH % (24H TREND) 78 (-4) 50 (+10) 100 62
WIND 20FT AM(MPH) S 6-10 G19 LGT/VAR
WIND 20FT PM(MPH) SE 3-7 G15 S 6-10 G19 S 3-7 G15 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 61 66
MIXING HGT(FT-AGL) 330 1390 420 1330
TRANSPORT WND (M/S) SE 5 S 7 W 5 NW 2
TRANSPORT WND (MPH) SE 10 S 16 W 10 NW 5
VENT RATE (M/S-M) 170 4230 310 1670
POOR POOR POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
UPPER 60S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE
LOWER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY
PARTLY CLOUDY. COOLER. LOWS AROUND 50. HIGHS AROUND 60.
WEST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. LOWS AROUND 40. HIGHS IN THE MID 50S.
SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. COLDER. LOWS IN THE UPPER 20S. HIGHS
AROUND 40. NORTHWEST WINDS 5 TO 10 MPH.
ILZ058>060-099-221000-
GREENE IL-MACOUPIN IL-MONTGOMERY IL-JERSEY IL-
INCLUDING THE CITY OF LITCHFIELD
105 PM CST SUN DEC 21 2025
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY MCLEAR
PRECIP TYPE NONE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0 0
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 24 (-1) 51 (+10) 40 61
RH % (24H TREND) 87 (+9) 44 (+4) 100 59
WIND 20FT AM(MPH) S 6-10 G19 LGT/VAR
WIND 20FT PM(MPH) SE 3-7 S 7-11 G19 S 5-9 G16 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 60 67
MIXING HGT(FT-AGL) 260 1450 470 1450
TRANSPORT WND (M/S) SE 4 S 9 W 5 W 2
TRANSPORT WND (MPH) SE 9 S 21 W 12 W 5
VENT RATE (M/S-M) 90 4850 220 2050
POOR MARGINAL POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
UPPER 60S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE
LOWER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY
PARTLY CLOUDY. COOLER. LOWS IN THE LOWER 50S. HIGHS IN
THE LOWER 60S. WEST WINDS 5 TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
UPPER 50S. SOUTHWEST WINDS 5 TO 10 MPH.
SUNDAY
PARTLY CLOUDY. COLDER. LOWS IN THE UPPER 20S. HIGHS IN
THE UPPER 30S. NORTHWEST WINDS 5 TO 10 MPH.
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