Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Central Illinois
Issued by NWS Central Illinois
492
FNUS53 KILX 190830
FWFILX
Fire Weather Planning Forecast for Central/Southeast Illinois
National Weather Service Lincoln IL
330 AM CDT Wed Aug 19 2026
.DISCUSSION...
Light and variable winds with poor ventilation rates in place
today and tomorrow. Widespread rain chances late this afternoon
into the overnight hours today. There could be localized pockets
of 2-5 inches of rainfall this evening. RH will be 60-70%.
ILZ027>031-036>038-192115-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-
Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka,
Canton, Pekin, Bloomington, and Normal
330 AM CDT Wed Aug 19 2026
Today Tonight Thu
Cloud Cover Pcldy Pcldy Mclear
Precip Type Tstms Tstms None
Chance Precip (%) 60 40 0
Chance of Thunder (%) 30 30 0
Temp (24h trend) 80 (-1) 61 (-3) 80
RH % (24h trend) 72 (+1) 100 (0) 60
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.31 0.13 0.00
Precip Duration 2 1
Precip Begin 6 AM Continuing
Precip End Continuing 12 AM
Mixing Hgt(ft-agl) 3070 4020
1700ft Mixing Temp 77 75
Transport Wnd (mph) NW 5 NE 7
Vent Rate (mph-ft) 15350 28140
Vent Rate Category Poor Poor
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY...Mostly clear. Lows in the lower 60s. Highs in the lower
80s. Minimum RH 72 percent. South winds around 5 mph.
.SATURDAY...Mostly clear. Lows in the mid 60s. Highs around 80.
Minimum RH 69 percent. Northwest winds around 5 mph.
.SUNDAY...Mostly clear. Lows in the lower 60s. Highs in the upper
70s. Minimum RH 65 percent. Northwest winds around 5 mph.
.MONDAY...Partly cloudy. Lows around 60. Highs in the upper 70s.
Minimum RH 67 percent. East winds around 5 mph.
.TUESDAY...Partly cloudy. Lows in the lower 60s. Highs in the
lower 80s. Minimum RH 70 percent. East winds around 5 mph.
$$
ILZ040>043-047>053-192115-
Schuyler-Mason-Logan-De Witt-Cass-Menard-Scott-Morgan-Sangamon-
Christian-Macon-
Including the cities of Rushville, Havana, Lincoln, Clinton,
Beardstown, Petersburg, Winchester, Jacksonville, Springfield,
Taylorville, and Decatur
330 AM CDT Wed Aug 19 2026
Today Tonight Thu
Cloud Cover Mcldy Pcldy Mclear
Precip Type Tstms Tstms None
Chance Precip (%) 70 60 0
Chance of Thunder (%) 40 40 0
Temp (24h trend) 80 (-4) 63 (-2) 81
RH % (24h trend) 72 (+10) 100 (0) 61
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.25 0.23 0.00
Precip Duration 3 2
Precip Begin 6 AM Continuing
Precip End Continuing 1 AM
Mixing Hgt(ft-agl) 2610 4010
1700ft Mixing Temp 77 76
Transport Wnd (mph) SW 6 NE 8
Vent Rate (mph-ft) 15660 32080
Vent Rate Category Poor Poor
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY...Mostly clear. Lows in the lower 60s. Highs in the lower
80s. Minimum RH 65 percent. Light winds.
.SATURDAY...Mostly clear. Lows in the mid 60s. Highs in the lower
80s. Minimum RH 64 percent. Northwest winds around 5 mph.
.SUNDAY...Mostly clear. Lows in the lower 60s. Highs around 80.
Minimum RH 61 percent. Northwest winds around 5 mph.
.MONDAY...Partly cloudy. Lows in the lower 60s. Highs in the
lower 80s. Minimum RH 63 percent. East winds around 5 mph.
.TUESDAY...Partly cloudy. Lows in the lower 60s. Highs in the
lower 80s. Minimum RH 64 percent. East winds around 5 mph.
$$
ILZ044>046-054>057-061-192115-
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 CDT Wed Aug 19 2026
Today Tonight Thu
Cloud Cover Mcldy Pcldy Mclear
Precip Type Tstms Tstms None
Chance Precip (%) 70 60 0
Chance of Thunder (%) 40 40 0
Temp (24h trend) 79 (-3) 62 (-2) 80
RH % (24h trend) 76 (+12) 100 (+1) 64
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.22 0.29 0.00
Precip Duration 3 2
Precip Begin 6 AM Continuing
Precip End Continuing 2 AM
Mixing Hgt(ft-agl) 3000 3730
1700ft Mixing Temp 77 75
Transport Wnd (mph) SW 8 NE 10
Vent Rate (mph-ft) 24000 37300
Vent Rate Category Poor Poor
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY...Mostly clear. Lows in the lower 60s. Highs in the lower
80s. Minimum RH 64 percent. Light winds.
.SATURDAY...Partly cloudy. Lows in the lower 60s. Highs in the
lower 80s. Minimum RH 67 percent. Northwest winds around 5 mph.
.SUNDAY...Mostly clear. Lows in the lower 60s. Highs in the upper
70s. Minimum RH 61 percent. Northwest winds around 5 mph.
.MONDAY...Partly cloudy. Lows in the upper 50s. Highs in the
upper 70s. Minimum RH 62 percent. East winds around 5 mph.
.TUESDAY...Partly cloudy. Lows in the lower 60s. Highs in the
lower 80s. Minimum RH 64 percent. East winds around 5 mph.
$$
ILZ062-063-066>068-071>073-192115-
Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence-
Including the cities of Greenup, Marshall, Effingham, Newton,
Robinson, Flora, Olney, and Lawrenceville
330 AM CDT Wed Aug 19 2026
Today Tonight Thu
Cloud Cover Mcldy Pcldy Pcldy
Precip Type Tstms Tstms None
Chance Precip (%) 60 50 0
Chance of Thunder (%) 40 40 0
Temp (24h trend) 80 (-5) 64 (0) 82
RH % (24h trend) 75 (+24) 100 (+1) 63
Wind 20ft/early(mph) Lgt/Var Lgt/Var Lgt/Var
Wind 20ft/late(mph) Lgt/Var Lgt/Var Lgt/Var
Precip Amount 0.19 0.40 0.00
Precip Duration 3 2
Precip Begin 6 AM Continuing
Precip End Continuing 5 AM
Mixing Hgt(ft-agl) 2320 3710
1700ft Mixing Temp 79 77
Transport Wnd (mph) SW 10 NE 10
Vent Rate (mph-ft) 23200 37100
Vent Rate Category Poor Poor
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.FRIDAY...Mostly clear. Lows in the lower 60s. Highs in the mid
80s. Minimum RH 59 percent. Light winds.
.SATURDAY...Mostly clear. Lows in the mid 60s. Highs in the mid
80s. Minimum RH 62 percent. Northwest winds around 5 mph.
.SUNDAY...Mostly clear. Lows in the lower 60s. Highs in the lower
80s. Minimum RH 56 percent. Northwest winds around 5 mph.
.MONDAY...Partly cloudy. Lows in the lower 60s. Highs in the
lower 80s. Minimum RH 58 percent. East winds around 5 mph.
.TUESDAY...Partly cloudy. Lows in the lower 60s. Highs in the mid
80s. Minimum RH 59 percent. East winds around 5 mph.
$$
Copple