379
FNUS53 KLSX 210920
FWFLSX
FIRE WEATHER PLANNING FORECAST FOR EASTERN/CENTRAL MO AND SOUTHWEST IL
NATIONAL WEATHER SERVICE SAINT LOUIS MO
320 AM CST WED JAN 21 2026
MINIMUM RELATIVE HUMIDITY VALUES ARE EXPECTED TO STAY ABOVE
40 PERCENT TODAY AS AFTERNOON MIXING HEIGHTS RANGE FROM AROUND
3000 FEET OVER MISSOURI TO 3500 FEET OVER SOUTH CENTRAL ILLINOIS.
WINDS WILL SHIFT OUT OF THE WEST THIS MORNING BEHIND A COLD FRONT
AND OUT OF THE NORTHWEST THIS EVENING BEHIND A SECOND COLD FRONT.
THE WEATHER IS EXPECTED TO REMAIN DRY THROUGH THIS WEEKEND BEFORE
A STORM SYSTEM BRINGS A CHANCE OF AN ACCUMULATING SNOW OVER
SOUTHEAST MISSOURI AND SOUTHWEST ILLINOIS.
MOZ072-073-083-084-099-212200-
CRAWFORD MO-WASHINGTON MO-DENT MO-IRON MO-REYNOLDS MO-
INCLUDING THE CITIES OF POTOSI/SALEM RANGER DISTRICT AND SALEM
320 AM CST WED JAN 21 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (+9) 20 (-9) 44
RH % (24H TREND) 36 (+10) 74 (-10) 26
WIND 20FT AM(MPH) SW 5-9 G18 LGT/VAR
WIND 20FT PM(MPH) W 5-9 G20 W 3-7 G19 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 42 38
MIXING HGT(FT-AGL) 3060 330 2660
TRANSPORT WND (M/S) W 8 W 5 N 2
TRANSPORT WND (MPH) W 18 W 12 N 3
VENT RATE (M/S-M) 9390 0 2170
GOOD POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLOUDY. LOWS AROUND 13. HIGHS IN THE LOWER 20S.
MINIMUM RH 25 PERCENT. NORTH WINDS 10 TO 15 MPH.
SATURDAY
CLOUDY WITH SNOW LIKELY. LOWS AROUND 1. HIGHS AROUND
12. NORTHEAST WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY CLOUDY. SNOW LIKELY. LOWS AROUND 5. HIGHS IN THE
LOWER 20S. NORTH WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS AROUND 3. HIGHS IN THE UPPER 20S.
MINIMUM RH 38 PERCENT. WEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY CLEAR. NOT AS COOL. LOWS AROUND 8. HIGHS IN THE
UPPER 30S. SOUTHWEST WINDS AROUND 5 MPH.
MOZ074-075-085-212200-
SAINT FRANCOIS MO-SAINTE GENEVIEVE MO-MADISON MO-
INCLUDING THE CITIES OF FARMINGTON AND FREDERICKTOWN RANGER
DISTRICT
320 AM CST WED JAN 21 2026
TODAY TONIGHT THU
CLOUD COVER PCLDY MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 49 (+12) 21 (-7) 43
RH % (24H TREND) 40 (+12) 73 (-8) 28
WIND 20FT AM(MPH) SW 6-10 G19 LGT/VAR
WIND 20FT PM(MPH) W 6-10 G20 W 3-7 G18 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 44 38
MIXING HGT(FT-AGL) 3380 300 2690
TRANSPORT WND (M/S) W 8 W 5 NW 2
TRANSPORT WND (MPH) W 18 W 10 NW 5
VENT RATE (M/S-M) 10010 40 2300
GOOD POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLOUDY. LOWS AROUND 13. HIGHS IN THE LOWER 20S.
MINIMUM RH 24 PERCENT. NORTH WINDS 10 TO 15 MPH.
SATURDAY
CLOUDY WITH SNOW LIKELY. LOWS AROUND 1. HIGHS AROUND
13. MINIMUM RH 40 PERCENT. NORTHEAST WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY CLOUDY. SNOW LIKELY. LOWS AROUND 6. HIGHS IN THE
LOWER 20S. NORTH WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS AROUND 3. HIGHS IN THE MID 20S.
MINIMUM RH 37 PERCENT. WEST WINDS AROUND 5 MPH.
TUESDAY
MOSTLY CLEAR. NOT AS COOL. LOWS AROUND 7. HIGHS IN THE
UPPER 30S. SOUTHWEST WINDS AROUND 5 MPH.
MOZ041-047>050-212200-
BOONE MO-MONITEAU MO-COLE MO-OSAGE MO-CALLAWAY MO-
INCLUDING THE CITIES OF COLUMBIA, CEDAR CREEK RANGER DISTRICT,
JEFFERSON CITY, AND FULTON
320 AM CST WED JAN 21 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 44 (0) 20 (-11) 40
RH % (24H TREND) 37 (+5) 75 (+7) 30
WIND 20FT AM(MPH) W 7-11 G18 LGT/VAR
WIND 20FT PM(MPH) W 8-12 G25 W 6-10 G20 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 37 36
MIXING HGT(FT-AGL) 2990 410 2980
TRANSPORT WND (M/S) W 9 N 2 W 3
TRANSPORT WND (MPH) W 21 N 5 W 6
VENT RATE (M/S-M) 10250 150 4950
GOOD POOR MARGINAL
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLOUDY. LOWS AROUND 7. HIGHS AROUND 14. MINIMUM
RH 28 PERCENT. NORTH WINDS 10 TO 15 MPH.
SATURDAY
CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND 1 BELOW.
HIGHS AROUND 10. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. A CHANCE OF SNOW. LOWS AROUND 4. HIGHS
AROUND 20. MINIMUM RH 40 PERCENT. NORTHWEST WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS AROUND 2. HIGHS IN THE MID 20S. WEST
WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. NOT AS COOL. LOWS AROUND 10. HIGHS IN
THE MID 30S. SOUTHWEST WINDS 5 TO 10 MPH.
MOZ051-059-060-062-065-212200-
MONTGOMERY MO-GASCONADE MO-WARREN MO-FRANKLIN MO-JEFFERSON MO-
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN
320 AM CST WED JAN 21 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 46 (+4) 20 (-10) 40
RH % (24H TREND) 37 (+8) 77 (+5) 30
WIND 20FT AM(MPH) W 7-11 G19 LGT/VAR
WIND 20FT PM(MPH) W 8-12 G25 W 6-10 G21 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 39 36
MIXING HGT(FT-AGL) 3070 430 2980
TRANSPORT WND (M/S) W 9 W 7 W 3
TRANSPORT WND (MPH) W 20 W 15 W 6
VENT RATE (M/S-M) 10540 150 5560
GOOD POOR MARGINAL
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLOUDY. LOWS AROUND 8. HIGHS AROUND 15. MINIMUM
RH 28 PERCENT. NORTH WINDS 10 TO 15 MPH.
SATURDAY
CLOUDY WITH A CHANCE OF SNOW. LOWS NEAR ZERO. HIGHS
AROUND 11. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. A CHANCE OF SNOW. LOWS AROUND 5. HIGHS
AROUND 20. NORTH WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS AROUND 2. HIGHS IN THE MID 20S. WEST
WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. NOT AS COOL. LOWS AROUND 9. HIGHS IN THE
UPPER 30S. SOUTHWEST WINDS 5 TO 10 MPH.
MOZ061-063-064-212200-
SAINT CHARLES MO-SAINT LOUIS MO-SAINT LOUIS CITY MO-
INCLUDING THE CITIES OF SAINT CHARLES AND SAINT LOUIS
320 AM CST WED JAN 21 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 45 (+5) 21 (-9) 39
RH % (24H TREND) 38 (+12) 75 (+7) 30
WIND 20FT AM(MPH) W 7-11 G19 LGT/VAR
WIND 20FT PM(MPH) W 9-13 G25 W 7-11 G21 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 40 35
MIXING HGT(FT-AGL) 3330 460 3020
TRANSPORT WND (M/S) W 9 W 6 W 3
TRANSPORT WND (MPH) W 21 W 14 W 7
VENT RATE (M/S-M) 10950 300 3880
GOOD POOR POOR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLOUDY. LOWS AROUND 8. HIGHS AROUND 15. MINIMUM
RH 27 PERCENT. NORTH WINDS 10 TO 15 MPH.
SATURDAY
CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND 1. HIGHS
AROUND 13. MINIMUM RH 40 PERCENT. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. A CHANCE OF SNOW. LOWS AROUND 7. HIGHS
AROUND 20. NORTH WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS AROUND 4. HIGHS IN THE MID 20S. WEST
WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. NOT AS COOL. LOWS AROUND 10. HIGHS IN
THE UPPER 30S. SOUTHWEST WINDS AROUND 5 MPH.
ILZ064-065-069-070-074-079-100>102-212200-
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
320 AM CST WED JAN 21 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 47 (+12) 21 (-6) 38
RH % (24H TREND) 41 (+12) 73 (-1) 32
WIND 20FT AM(MPH) SW 8-12 G22 LGT/VAR
WIND 20FT PM(MPH) W 10-14 G26 W 7-11 G23 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 42 35
MIXING HGT(FT-AGL) 3480 390 2810
TRANSPORT WND (M/S) W 9 W 6 W 3
TRANSPORT WND (MPH) W 21 W 14 W 7
VENT RATE (M/S-M) 13160 290 5380
GOOD POOR MARGINAL
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLOUDY. LOWS AROUND 10. HIGHS AROUND 15. MINIMUM
RH 28 PERCENT. NORTH WINDS 15 TO 20 MPH.
SATURDAY
CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND 2. HIGHS
AROUND 13. MINIMUM RH 40 PERCENT. NORTHEAST WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY CLOUDY. A CHANCE OF SNOW. LOWS AROUND 8. HIGHS
AROUND 20. NORTH WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS AROUND 4. HIGHS IN THE LOWER 20S.
WEST WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. NOT AS COLD. LOWS AROUND 8. HIGHS IN THE
MID 30S. SOUTHWEST WINDS AROUND 5 MPH.
MOZ018-019-026-027-034>036-042-052-212200-
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
320 AM CST WED JAN 21 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 41 (+4) 17 (-12) 36
RH % (24H TREND) 43 (+6) 74 (+4) 34
WIND 20FT AM(MPH) W 7-11 G19 LGT/VAR
WIND 20FT PM(MPH) W 12-16 G29 W 10-14 G27 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 35 34
MIXING HGT(FT-AGL) 3040 510 3840
TRANSPORT WND (M/S) W 10 W 9 W 7
TRANSPORT WND (MPH) W 22 W 20 W 15
VENT RATE (M/S-M) 12230 260 13730
GOOD POOR GOOD
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLOUDY. LOWS AROUND 1. HIGHS AROUND 8. MINIMUM
RH 30 PERCENT. NORTH WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
3 BELOW. HIGHS AROUND 9. NORTHEAST WINDS 5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. A CHANCE OF SNOW. LOWS AROUND 2. HIGHS
AROUND 18. NORTHWEST WINDS AROUND 5 MPH.
MONDAY
MOSTLY CLEAR. LOWS AROUND 1. HIGHS IN THE LOWER 20S.
WEST WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. NOT AS COLD. LOWS AROUND 10. HIGHS IN
THE LOWER 30S. SOUTHWEST WINDS 5 TO 10 MPH.
ILZ095>098-212200-
ADAMS IL-BROWN IL-PIKE IL-CALHOUN IL-
INCLUDING THE CITIES OF QUINCY, MOUNT STERLING, AND PITTSFIELD
320 AM CST WED JAN 21 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 40 (+5) 17 (-11) 36
RH % (24H TREND) 42 (+5) 72 (+4) 34
WIND 20FT AM(MPH) W 8-12 G19 LGT/VAR
WIND 20FT PM(MPH) W 11-15 G27 W 12-16 G29 W 3-7
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 34 33
MIXING HGT(FT-AGL) 3220 530 4020
TRANSPORT WND (M/S) W 10 W 8 W 7
TRANSPORT WND (MPH) W 22 W 18 W 16
VENT RATE (M/S-M) 12280 370 12840
GOOD POOR GOOD
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLOUDY. LOWS AROUND 1. HIGHS AROUND 7. MINIMUM
RH 30 PERCENT. NORTH WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
3 BELOW. HIGHS AROUND 10. MINIMUM RH 40 PERCENT. NORTHEAST WINDS
5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. A CHANCE OF SNOW. LOWS AROUND 4. HIGHS
AROUND 18. NORTHWEST WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS AROUND 2. HIGHS IN THE LOWER 20S.
WEST WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. NOT AS COLD. LOWS AROUND 9. HIGHS IN THE
LOWER 30S. SOUTHWEST WINDS 5 TO 10 MPH.
ILZ058>060-099-212200-
GREENE IL-MACOUPIN IL-MONTGOMERY IL-JERSEY IL-
INCLUDING THE CITY OF LITCHFIELD
320 AM CST WED JAN 21 2026
TODAY TONIGHT THU
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 43 (+9) 19 (-8) 36
RH % (24H TREND) 36 (+6) 68 (+6) 30
WIND 20FT AM(MPH) SW 9-13 G20 LGT/VAR
WIND 20FT PM(MPH) W 12-16 G27 W 10-14 G25 LGT/VAR
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 37 33
MIXING HGT(FT-AGL) 3420 480 3310
TRANSPORT WND (M/S) W 10 W 8 W 5
TRANSPORT WND (MPH) W 23 W 17 W 12
VENT RATE (M/S-M) 12420 640 7650
GOOD POOR FAIR
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY
MOSTLY CLOUDY. LOWS AROUND 4. HIGHS AROUND 10. MINIMUM
RH 26 PERCENT. NORTH WINDS 10 TO 15 MPH.
SATURDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS AROUND
2 BELOW. HIGHS AROUND 11. MINIMUM RH 38 PERCENT. NORTHEAST WINDS
5 TO 10 MPH.
SUNDAY
MOSTLY CLOUDY. A CHANCE OF SNOW. LOWS AROUND 5. HIGHS
AROUND 18. MINIMUM RH 40 PERCENT. NORTH WINDS 5 TO 10 MPH.
MONDAY
MOSTLY CLEAR. LOWS AROUND 2. HIGHS AROUND 20. WEST
WINDS 5 TO 10 MPH.
TUESDAY
MOSTLY CLEAR. NOT AS COLD. LOWS AROUND 7. HIGHS IN THE
LOWER 30S. SOUTHWEST WINDS 5 TO 10 MPH.
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