Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Central Illinois
Issued by NWS Central Illinois
116
FNUS53 KILX 201849
FWFILX
Fire Weather Planning Forecast for Central/Southeast Illinois
National Weather Service Lincoln IL
149 PM CDT Sun Sep 20 2026
.DISCUSSION...
Showers and isolated thunderstorms will be most numerous along and north
of the I-72 corridor into this evening...while conditions remain mostly dry
south of I-70. Showers will linger across all of central and southeast
Illinois tonight and Monday before gradually tapering off and coming to
an end by Tuesday afternoon. Ventilation rates will remain poor through
Tuesday due to low mixing heights.
ILZ027>031-036>038-040-041-211200-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-
Schuyler-Mason-
Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka,
Canton, Pekin, Bloomington, Normal, Rushville, and Havana
149 PM CDT Sun Sep 20 2026
Tonight Mon Mon Night Tue
Cloud Cover Cloudy Cloudy Mcldy Pcldy
Precip Type Showers Showers Showers Showers
Chance Precip (%) 30 20 20 20
Chance of Thunder (%) 0 0 0 0
Temp (24h trend) 58 (-10) 65 (-11) 53 66
RH % (24h trend) 100 (0) 76 (-7) 98 66
Wind 20ft/early(mph) NE 10 G21 NE 9 G19 NE 9 G18 NE 8 G17
Wind 20ft/late(mph) NE 9 G21 NE 9 G18 NE 8 G17 NE 9
Precip Amount 0.08 0.03 0.02 0.00
Precip Duration 1 1 1 1
Precip Begin 6 PM Continuing Continuing Continuing
Precip End Continuing Continuing Continuing 1 PM
Mixing Hgt(ft-agl) 2320 2950
1700ft Mixing Temp 65 62
Transport Wnd (mph) E 17 NE 15
Vent Rate (mph-ft) 39440 44250
Vent Rate Category Poor Poor
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.WEDNESDAY...Partly cloudy. Lows around 50. Highs in the upper
60s. Minimum RH 68 percent. Northeast winds around 5 mph.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs around
70. Minimum RH 66 percent. Northeast winds around 5 mph.
.FRIDAY...Mostly cloudy. Lows in the lower 50s. Highs in the
lower 70s. Minimum RH 61 percent. Northeast winds around 5 mph.
.SATURDAY...Mostly cloudy. Lows in the lower 50s. Highs in the
mid 70s. Minimum RH 57 percent. Light winds.
.SUNDAY...Mostly cloudy. Lows in the mid 50s. Highs in the upper
70s. Minimum RH 56 percent. Light winds.
$$
ILZ042-043-047>053-211200-
Logan-De Witt-Cass-Menard-Scott-Morgan-Sangamon-Christian-Macon-
Including the cities of Lincoln, Clinton, Beardstown, Petersburg,
Winchester, Jacksonville, Springfield, Taylorville, and Decatur
149 PM CDT Sun Sep 20 2026
Tonight Mon Mon Night Tue
Cloud Cover Mcldy Cloudy Mcldy Pcldy
Precip Type Tstms Showers None None
Chance Precip (%) 40 30 0 0
Chance of Thunder (%) 30 0 0 0
Temp (24h trend) 61 (-10) 68 (-16) 55 69
RH % (24h trend) 100 (+9) 76 (+14) 98 62
Wind 20ft/early(mph) NE 8 G17 NE 7 NE 8 G17 NE 8
Wind 20ft/late(mph) NE 7 NE 8 NE 7 NE 8
Precip Amount 0.21 0.06 0.00 0.00
Precip Duration 2 1
Precip Begin 6 PM Continuing
Precip End Continuing 10 AM
Mixing Hgt(ft-agl) 2420 3170
1700ft Mixing Temp 69 63
Transport Wnd (mph) NE 14 NE 14
Vent Rate (mph-ft) 33880 44380
Vent Rate Category Poor Poor
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 70s. Minimum RH 59 percent. Northeast winds around 5 mph.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 70s. Minimum RH 58 percent. Northeast winds around 5 mph.
.FRIDAY...Mostly cloudy. Lows in the lower 50s. Highs in the mid
70s. Minimum RH 52 percent. Northeast winds around 5 mph.
.SATURDAY...Mostly cloudy. Lows in the lower 50s. Highs in the
mid 70s. Minimum RH 47 percent. Northeast winds around 5 mph.
.SUNDAY...Mostly cloudy. Lows in the mid 50s. Highs in the lower
80s. Minimum RH 44 percent. Light winds.
$$
ILZ044>046-054>057-061-211200-
Piatt-Champaign-Vermilion-Moultrie-Douglas-Coles-Edgar-Shelby-
Including the cities of Monticello, Champaign, Urbana, Danville,
Sullivan, Tuscola, Charleston, Mattoon, Paris, and Shelbyville
149 PM CDT Sun Sep 20 2026
Tonight Mon Mon Night Tue
Cloud Cover Mcldy Mcldy Mcldy Pcldy
Precip Type Tstms Showers None None
Chance Precip (%) 40 30 0 0
Chance of Thunder (%) 40 0 0 0
Temp (24h trend) 59 (-11) 71 (-14) 54 70
RH % (24h trend) 100 (+7) 69 (+8) 96 61
Wind 20ft/early(mph) N 8 NE 8 G17 NE 9 G18 NE 9
Wind 20ft/late(mph) NE 8 NE 8 NE 8 NE 9
Precip Amount 0.19 0.07 0.00 0.00
Precip Duration 2 1
Precip Begin 6 PM Continuing
Precip End Continuing 11 AM
Mixing Hgt(ft-agl) 2400 2790
1700ft Mixing Temp 69 64
Transport Wnd (mph) NE 16 NE 14
Vent Rate (mph-ft) 38400 39060
Vent Rate Category Poor Poor
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.WEDNESDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 60s. Minimum RH 64 percent. Northeast winds 5 to 10 mph.
.THURSDAY...Partly cloudy. Lows in the lower 50s. Highs in the
lower 70s. Minimum RH 61 percent. Northeast winds around 5 mph.
.FRIDAY...Mostly cloudy. Lows in the lower 50s. Highs in the
lower 70s. Minimum RH 53 percent. Northeast winds around 5 mph.
.SATURDAY...Mostly cloudy. Lows in the lower 50s. Highs in the
mid 70s. Minimum RH 46 percent. Northeast winds around 5 mph.
.SUNDAY...Partly cloudy. Lows in the lower 50s. Highs around 80.
Minimum RH 44 percent. Light winds.
$$
ILZ062-063-066>068-071>073-211200-
Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence-
Including the cities of Greenup, Marshall, Effingham, Newton,
Robinson, Flora, Olney, and Lawrenceville
149 PM CDT Sun Sep 20 2026
Tonight Mon Mon Night Tue
Cloud Cover Mcldy Mcldy Pcldy Pcldy
Precip Type Tstms Showers None None
Chance Precip (%) 50 30 0 0
Chance of Thunder (%) 20 0 0 0
Temp (24h trend) 63 (-7) 80 (-12) 56 74
RH % (24h trend) 100 (+10) 58 (+18) 95 54
Wind 20ft/early(mph) N 6 N 5 NE 7 NE 8
Wind 20ft/late(mph) N 6 N 7 NE 6 NE 8
Precip Amount 0.27 0.07 0.00 0.00
Precip Duration 2 1
Precip Begin 6 PM Continuing
Precip End Continuing 11 AM
Mixing Hgt(ft-agl) 2590 3450
1700ft Mixing Temp 75 69
Transport Wnd (mph) NE 12 NE 13
Vent Rate (mph-ft) 31080 44850
Vent Rate Category Poor Poor
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.WEDNESDAY...Partly cloudy. Lows in the mid 50s. Highs in the
lower 70s. Minimum RH 54 percent. North winds 5 to 10 mph.
.THURSDAY...Partly cloudy. Lows in the mid 50s. Highs in the mid
70s. Minimum RH 52 percent. North winds around 5 mph.
.FRIDAY...Partly cloudy. Lows in the mid 50s. Highs in the mid
70s. Minimum RH 45 percent. Northeast winds around 5 mph.
.SATURDAY...Partly cloudy. Lows in the lower 50s. Highs in the
upper 70s. Minimum RH 38 percent. Northeast winds around 5 mph.
.SUNDAY...Partly cloudy. Lows in the mid 50s. Highs in the lower
80s. Minimum RH 36 percent. Northeast winds around 5 mph.
$$
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