797
FNUS53 KLSX 210628
FWFLSX
FIRE WEATHER PLANNING FORECAST FOR EASTERN/CENTRAL MO AND SOUTHWEST IL
NATIONAL WEATHER SERVICE SAINT LOUIS MO
128 AM CDT SAT MAR 21 2026
VERY WARM TEMPERATURES, LOW HUMIDITY, AND LOCALLY BREEZY
SOUTHWEST WINDS ARE EXPECTED THROUGHOUT THE DAY TOMORROW. AS A
RESULT A FEW LOCATIONS MAY SEE ELEVATED FIRE WEATHER CONDITIONS
SUPPORTING ERRATIC FIRE BEHAVIOR. THIS IS MOST LIKELY ACROSS
NORTHEAST MISSOURI AND WEST-CENTRAL ILLINOIS WHERE WINDS WILL BE
STRONGEST. DEEP MIXING AND RELATIVELY EFFICIENT SMOKE DISPERSION
IS LIKELY AS WELL. ON SUNDAY, A STRONGER COLD FRONT WILL PUSH
THROUGH THE AREA DURING THE AFTERNOON AND EVENING. AHEAD OF THIS
FRONT, BREEZY SOUTHWEST WINDS AND LOW HUMIDITY ARE VERY LIKELY TO
RESULT IN AT LEAST ELEVATED FIRE WEATHER CONDITIONS DURING THE
DAY, PARTICULARLY ALONG AND SOUTH OF THE MISSOURI RIVER AND I-70.
WINDS WILL ALSO SHIFT SHARPLY TO THE NORTH BEHIND THE FRONT AND
INCREASE SUBSTANTIALLY LATE IN THE AFTERNOON AND EVENING,
ALTHOUGH HUMIDITY IS ALSO EXPECTED TO INCREASE AT THE SAME TIME.
MUCH COOLER, BUT SEASONALLY APPROPRIATE TEMPERATURES RETURN
MONDAY, BUT MODERATE TO LOW HUMIDITY WILL PERSIST ALONG WITH
SOMEWHAT BREEZY NORTHEAST WINDS.
MOZ072-073-083-084-099-212100-
CRAWFORD MO-WASHINGTON MO-DENT MO-IRON MO-REYNOLDS MO-
INCLUDING THE CITIES OF POTOSI/SALEM RANGER DISTRICT AND SALEM
128 AM CDT SAT MAR 21 2026
TODAY TONIGHT SUN
CLOUD COVER CLEAR CLEAR MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 92 (+5) 61 (+9) 91
RH % (24H TREND) 22 (+2) 79 (-1) 28
WIND 20FT AM(MPH) LGT/VAR SW 4-8 G20
WIND 20FT PM(MPH) LGT/VAR LGT/VAR SW 7-11 G24
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 80 81
MIXING HGT(FT-AGL) 5630 310 5970
TRANSPORT WND (M/S) W 3 S 5 W 10
TRANSPORT WND (MPH) W 6 S 10 W 22
VENT RATE (M/S-M) 6870 0 21190
FAIR POOR EXCELLENT
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
PARTLY CLOUDY. LOWS AROUND 40. HIGHS AROUND 60. MINIMUM
RH 30 PERCENT. NORTHEAST WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 60S. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. WARMER. LOWS IN THE MID 40S. HIGHS IN
THE MID 70S. MINIMUM RH 40 PERCENT. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE MID
80S. MINIMUM RH 37 PERCENT. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF RAIN. MUCH COOLER. LOWS IN
THE UPPER 40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO
15 MPH.
MOZ074-075-085-212100-
SAINT FRANCOIS MO-SAINTE GENEVIEVE MO-MADISON MO-
INCLUDING THE CITIES OF FARMINGTON AND FREDERICKTOWN RANGER
DISTRICT
128 AM CDT SAT MAR 21 2026
TODAY TONIGHT SUN
CLOUD COVER CLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 91 (+3) 61 (+9) 89
RH % (24H TREND) 25 (+4) 79 (-6) 33
WIND 20FT AM(MPH) LGT/VAR SW 6-10 G20
WIND 20FT PM(MPH) LGT/VAR LGT/VAR SW 8-12 G21
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 79 83
MIXING HGT(FT-AGL) 4550 330 5400
TRANSPORT WND (M/S) W 3 S 5 W 9
TRANSPORT WND (MPH) W 6 S 10 W 21
VENT RATE (M/S-M) 5970 70 20370
FAIR POOR EXCELLENT
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
PARTLY CLOUDY. LOWS AROUND 40. HIGHS IN THE UPPER 50S.
MINIMUM RH 35 PERCENT. NORTHEAST WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 60S. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. WARMER. LOWS IN THE MID 40S. HIGHS IN
THE MID 70S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S. SOUTHWEST WINDS 5 TO 10 MPH.
FRIDAY
PARTLY CLOUDY. A CHANCE OF RAIN. MUCH COOLER. LOWS IN
THE UPPER 40S. HIGHS IN THE LOWER 60S. NORTHEAST WINDS 10 TO
15 MPH.
MOZ041-047>050-212100-
BOONE MO-MONITEAU MO-COLE MO-OSAGE MO-CALLAWAY MO-
INCLUDING THE CITIES OF COLUMBIA, CEDAR CREEK RANGER DISTRICT,
JEFFERSON CITY, AND FULTON
128 AM CDT SAT MAR 21 2026
TODAY TONIGHT SUN
CLOUD COVER CLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 92 (+3) 62 (+11) 85
RH % (24H TREND) 19 (0) 69 (-7) 34
WIND 20FT AM(MPH) LGT/VAR SW 6-10 G20
WIND 20FT PM(MPH) SW 3-7 LGT/VAR NW 11-15 G29
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 80 76
MIXING HGT(FT-AGL) 4460 350 3580
TRANSPORT WND (M/S) SW 5 SW 6 N 14
TRANSPORT WND (MPH) SW 12 SW 13 N 31
VENT RATE (M/S-M) 11570 300 17660
GOOD POOR EXCELLENT
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 50S. MINIMUM RH 34 PERCENT. NORTHEAST WINDS 15 TO 20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE MID
60S. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. WARMER. LOWS IN THE MID 40S. HIGHS IN
THE MID 70S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE
LOWER 80S. MINIMUM RH 37 PERCENT. WEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF RAIN. MUCH COOLER. LOWS IN
THE MID 40S. HIGHS IN THE UPPER 50S. NORTHEAST WINDS 10 TO
15 MPH.
MOZ051-059-060-062-065-212100-
MONTGOMERY MO-GASCONADE MO-WARREN MO-FRANKLIN MO-JEFFERSON MO-
INCLUDING THE CITIES OF WASHINGTON, UNION, AND SULLIVAN
128 AM CDT SAT MAR 21 2026
TODAY TONIGHT SUN
CLOUD COVER CLEAR CLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 93 (+4) 62 (+11) 89
RH % (24H TREND) 21 (+3) 69 (-11) 32
WIND 20FT AM(MPH) LGT/VAR SW 5-9 G21
WIND 20FT PM(MPH) LGT/VAR LGT/VAR NW 9-13 G28
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 79 79
MIXING HGT(FT-AGL) 3790 310 4320
TRANSPORT WND (M/S) SW 3 S 5 N 12
TRANSPORT WND (MPH) SW 7 S 12 N 26
VENT RATE (M/S-M) 8710 100 20770
GOOD POOR EXCELLENT
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 50S. MINIMUM RH 35 PERCENT. NORTHEAST WINDS 15 TO 20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 60S. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. WARMER. LOWS IN THE MID 40S. HIGHS IN
THE MID 70S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE LOWER
80S. MINIMUM RH 40 PERCENT. SOUTHWEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF RAIN. MUCH COOLER. LOWS IN
THE MID 40S. HIGHS IN THE UPPER 50S. NORTHEAST WINDS 10 TO
15 MPH.
MOZ061-063-064-212100-
SAINT CHARLES MO-SAINT LOUIS MO-SAINT LOUIS CITY MO-
INCLUDING THE CITIES OF SAINT CHARLES AND SAINT LOUIS
128 AM CDT SAT MAR 21 2026
TODAY TONIGHT SUN
CLOUD COVER CLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 90 (+1) 63 (+12) 90
RH % (24H TREND) 23 (+3) 69 (-14) 32
WIND 20FT AM(MPH) LGT/VAR SW 5-9 G19
WIND 20FT PM(MPH) LGT/VAR LGT/VAR NW 9-13 G27
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 77 80
MIXING HGT(FT-AGL) 3280 340 4040
TRANSPORT WND (M/S) SW 3 S 4 N 13
TRANSPORT WND (MPH) SW 7 S 8 N 29
VENT RATE (M/S-M) 4600 130 17310
MARGINAL POOR EXCELLENT
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
UPPER 50S. MINIMUM RH 35 PERCENT. NORTHEAST WINDS 15 TO 20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 60S. MINIMUM RH 39 PERCENT. SOUTHEAST WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE
LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE
LOWER 80S. MINIMUM RH 40 PERCENT. SOUTHWEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF RAIN. MUCH COOLER. LOWS IN
THE MID 40S. HIGHS IN THE UPPER 50S. NORTHEAST WINDS 5 TO 10 MPH.
ILZ064-065-069-070-074-079-100>102-212100-
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
128 AM CDT SAT MAR 21 2026
TODAY TONIGHT SUN
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 87 (+1) 61 (+11) 87
RH % (24H TREND) 29 (+5) 85 (-5) 37
WIND 20FT AM(MPH) LGT/VAR SW 7-11 G19
WIND 20FT PM(MPH) LGT/VAR LGT/VAR W 10-14 G26
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 75 81
MIXING HGT(FT-AGL) 2970 350 4180
TRANSPORT WND (M/S) SW 3 S 4 W 9
TRANSPORT WND (MPH) SW 7 S 9 W 20
VENT RATE (M/S-M) 4790 210 17030
MARGINAL POOR EXCELLENT
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. LOWS IN THE
UPPER 30S. HIGHS IN THE MID 50S. MINIMUM RH 40 PERCENT. NORTHEAST
WINDS 15 TO 20 MPH.
TUESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS AROUND 60.
SOUTHEAST WINDS 5 TO 10 MPH.
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
UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF RAIN. MUCH COOLER. LOWS IN
THE MID 40S. HIGHS IN THE UPPER 50S. NORTHEAST WINDS 10 TO
15 MPH.
MOZ018-019-026-027-034>036-042-052-212100-
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
128 AM CDT SAT MAR 21 2026
TODAY TONIGHT SUN
CLOUD COVER CLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 90 (+5) 62 (+13) 80
RH % (24H TREND) 22 (-1) 67 (-15) 41
WIND 20FT AM(MPH) LGT/VAR W 7-11 G23
WIND 20FT PM(MPH) SW 5-9 G16 SW 3-7 G17 N 13-17 G30
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 78 69
MIXING HGT(FT-AGL) 4060 380 3340
TRANSPORT WND (M/S) W 7 SW 5 N 14
TRANSPORT WND (MPH) W 15 SW 12 N 32
VENT RATE (M/S-M) 14170 210 18360
GOOD POOR EXCELLENT
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. MINIMUM RH 38 PERCENT. NORTHEAST WINDS 15 TO 20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS AROUND 40. HIGHS IN THE LOWER 60S.
SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE
UPPER 70S. MINIMUM RH 40 PERCENT. WEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF RAIN. MUCH COOLER. LOWS
AROUND 40. HIGHS IN THE LOWER 50S. NORTHEAST WINDS 10 TO 15 MPH.
ILZ095>098-212100-
ADAMS IL-BROWN IL-PIKE IL-CALHOUN IL-
INCLUDING THE CITIES OF QUINCY, MOUNT STERLING, AND PITTSFIELD
128 AM CDT SAT MAR 21 2026
TODAY TONIGHT SUN
CLOUD COVER CLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 88 (+4) 62 (+13) 80
RH % (24H TREND) 24 (-1) 66 (-20) 40
WIND 20FT AM(MPH) LGT/VAR W 6-10 G21
WIND 20FT PM(MPH) SW 5-9 G15 S 3-7 G16 N 12-16 G28
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 75 69
MIXING HGT(FT-AGL) 3580 360 3460
TRANSPORT WND (M/S) SW 7 S 7 N 14
TRANSPORT WND (MPH) SW 16 S 15 N 31
VENT RATE (M/S-M) 11360 220 17780
GOOD POOR EXCELLENT
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. MINIMUM RH 37 PERCENT. NORTHEAST WINDS 15 TO 20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS AROUND 40. HIGHS IN THE LOWER 60S.
MINIMUM RH 39 PERCENT. SOUTH WINDS 5 TO 10 MPH.
WEDNESDAY
MOSTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS AROUND
70. SOUTH WINDS 5 TO 10 MPH.
THURSDAY
PARTLY CLOUDY. LOWS IN THE MID 50S. HIGHS IN THE
UPPER 70S. MINIMUM RH 40 PERCENT. WEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF RAIN. MUCH COOLER. LOWS
AROUND 40. HIGHS IN THE MID 50S. NORTHEAST WINDS 10 TO 15 MPH.
ILZ058>060-099-212100-
GREENE IL-MACOUPIN IL-MONTGOMERY IL-JERSEY IL-
INCLUDING THE CITY OF LITCHFIELD
128 AM CDT SAT MAR 21 2026
TODAY TONIGHT SUN
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE NONE NONE NONE
CHANCE PRECIP (%) 0 0 0
CHANCE OF THUNDER (%) 0 0 0
TEMP (24H TREND) 86 (+1) 59 (+11) 85
RH % (24H TREND) 23 (-2) 76 (-13) 33
WIND 20FT AM(MPH) LGT/VAR SW 7-11 G18
WIND 20FT PM(MPH) SW 4-8 S 3-7 G15 NW 12-16 G29
PRECIP AMOUNT 0.00 0.00 0.00
PRECIP DURATION
1700FT MIXING TEMP 74 76
MIXING HGT(FT-AGL) 3100 360 3920
TRANSPORT WND (M/S) SW 5 S 5 N 12
TRANSPORT WND (MPH) SW 10 S 12 N 28
VENT RATE (M/S-M) 7270 130 18350
FAIR POOR EXCELLENT
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
MONDAY
PARTLY CLOUDY. LOWS IN THE MID 30S. HIGHS IN THE MID
50S. MINIMUM RH 36 PERCENT. NORTHEAST WINDS 15 TO 20 MPH.
TUESDAY
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE
LOWER 60S. MINIMUM RH 36 PERCENT. SOUTHEAST WINDS 5 TO 10 MPH.
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 LOWER 50S. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY. A CHANCE OF RAIN. MUCH COOLER. LOWS IN
THE LOWER 40S. HIGHS IN THE MID 50S. NORTHEAST WINDS 10 TO
15 MPH.
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