FNUS53 KILX 180846 FWFILX Fire Weather Planning Forecast for Central/Southeast Illinois National Weather Service Lincoln IL 346 AM CDT Mon May 18 2026 .DISCUSSION... Increasing transport winds ahead of a cold front will aid in optimal vent rates today through Tuesday. The caveat will be multiple rounds of showers and thunderstorms that develop over the next 48 hours, occasionally contributing to poor mixing heights and soggy fuels. NOTE: With the conclusion of our spring fire weather season, afternoon updates to this product will be suspended until September 15th. ILZ027>031-036>038-182130- Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean- Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka, Canton, Pekin, Bloomington, and Normal 346 AM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Pcldy Mcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 90 70 70 Chance of Thunder (%) 50 50 50 Temp (24h trend) 81 (-4) 66 (-1) 79 RH % (24h trend) 62 (+5) 91 (+7) 55 Wind 20ft/early(mph) S 12 G24 S 11 G22 SW 13 G26 Wind 20ft/late(mph) S 14 G25 S 12 G24 W 12 G25 Precip Amount 0.48 0.23 0.09 Precip Duration 6 3 7 Precip Begin 6 AM Continuing Continuing Precip End Continuing Continuing 6 PM Mixing Hgt(ft-agl) 1960 2860 1700ft Mixing Temp 77 72 Transport Wnd (mph) SW 23 SW 24 Vent Rate (mph-ft) 45080 68640 Vent Rate Category Poor Fair Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy. Lows in the lower 50s. Highs in the upper 60s. Minimum RH 46 percent. North winds 5 to 10 mph. .THURSDAY...Partly cloudy. Lows in the mid 40s. Highs around 70. Minimum RH 45 percent. Northeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy with a chance of showers. Lows around 50. Highs in the lower 70s. Minimum RH 57 percent. East winds around 5 mph. .SATURDAY...Mostly cloudy. A chance of showers. Lows in the mid 50s. Highs around 80. Minimum RH 50 percent. North winds around 5 mph. .SUNDAY...Partly cloudy. Lows in the upper 50s. Highs in the mid 80s. Minimum RH 48 percent. Southeast winds around 5 mph. $$ ILZ040>043-047>053-182130- Schuyler-Mason-Logan-De Witt-Cass-Menard-Scott-Morgan-Sangamon- Christian-Macon- Including the cities of Rushville, Havana, Lincoln, Clinton, Beardstown, Petersburg, Winchester, Jacksonville, Springfield, Taylorville, and Decatur 346 AM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Pcldy Mcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 90 50 70 Chance of Thunder (%) 50 40 50 Temp (24h trend) 80 (-5) 67 (-1) 81 RH % (24h trend) 61 (+6) 88 (+5) 60 Wind 20ft/early(mph) S 12 G24 S 12 G25 S 12 G24 Wind 20ft/late(mph) S 13 G25 S 12 G23 W 11 G24 Precip Amount 0.71 0.17 0.19 Precip Duration 7 1 7 Precip Begin 6 AM Continuing Continuing Precip End Continuing Continuing Continuing Mixing Hgt(ft-agl) 1720 2900 1700ft Mixing Temp 79 76 Transport Wnd (mph) SW 23 W 21 Vent Rate (mph-ft) 39560 60900 Vent Rate Category Poor Fair Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy. A chance of showers. Lows in the lower 50s. Highs in the upper 60s. Minimum RH 48 percent. North winds around 10 mph. .THURSDAY...Partly cloudy. Lows in the mid 40s. Highs in the lower 70s. Minimum RH 47 percent. Northeast winds 5 to 10 mph. .FRIDAY...Mostly cloudy with a chance of showers. Lows in the lower 50s. Highs in the mid 70s. Minimum RH 58 percent. East winds around 5 mph. .SATURDAY...Mostly cloudy. A chance of showers. Lows in the mid 50s. Highs around 80. Minimum RH 51 percent. North winds around 5 mph. .SUNDAY...Partly cloudy. Lows in the upper 50s. Highs in the mid 80s. Minimum RH 48 percent. East winds around 5 mph. $$ ILZ044>046-054>057-061-182130- Piatt-Champaign-Vermilion-Moultrie-Douglas-Coles-Edgar-Shelby- Including the cities of Monticello, Champaign, Urbana, Danville, Sullivan, Tuscola, Charleston, Mattoon, Paris, and Shelbyville 346 AM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Pcldy Mcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 100 50 80 Chance of Thunder (%) 70 50 50 Temp (24h trend) 80 (-5) 67 (+1) 82 RH % (24h trend) 63 (+9) 90 (+11) 61 Wind 20ft/early(mph) S 13 G24 S 12 G23 SW 14 G25 Wind 20ft/late(mph) SW 14 G24 S 11 G23 SW 13 G25 Precip Amount 0.69 0.11 0.25 Precip Duration 5 1 6 Precip Begin 9 AM Continuing Continuing Precip End Continuing Continuing Continuing Mixing Hgt(ft-agl) 2400 3210 1700ft Mixing Temp 79 78 Transport Wnd (mph) SW 26 SW 25 Vent Rate (mph-ft) 62400 80250 Vent Rate Category Fair Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Mostly cloudy. Showers likely and a chance of thunderstorms. Lows in the mid 50s. Highs in the upper 60s. Minimum RH 51 percent. North winds around 10 mph. .THURSDAY...Partly cloudy. Lows in the mid 40s. Highs around 70. Minimum RH 51 percent. Northeast winds around 10 mph. .FRIDAY...Mostly cloudy. A chance of showers. Lows in the lower 50s. Highs in the lower 70s. Minimum RH 64 percent. East winds around 5 mph. .SATURDAY...Mostly cloudy. A chance of showers. Lows in the upper 50s. Highs in the upper 70s. Minimum RH 56 percent. North winds around 5 mph. .SUNDAY...Partly cloudy. Lows in the upper 50s. Highs in the lower 80s. Minimum RH 52 percent. South winds around 5 mph. $$ ILZ062-063-066>068-071>073-182130- Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence- Including the cities of Greenup, Marshall, Effingham, Newton, Robinson, Flora, Olney, and Lawrenceville 346 AM CDT Mon May 18 2026 Today Tonight Tue Cloud Cover Mcldy Pcldy Pcldy Precip Type Tstms Tstms Tstms Chance Precip (%) 90 50 80 Chance of Thunder (%) 60 50 60 Temp (24h trend) 83 (-2) 68 (+2) 83 RH % (24h trend) 57 (+11) 89 (+7) 60 Wind 20ft/early(mph) S 11 G23 S 10 G22 S 11 G23 Wind 20ft/late(mph) S 12 G23 S 10 G23 SW 12 G23 Precip Amount 0.70 0.22 0.32 Precip Duration 5 1 6 Precip Begin 9 AM Continuing 7 AM Precip End Continuing 11 PM Continuing Mixing Hgt(ft-agl) 2750 3100 1700ft Mixing Temp 81 81 Transport Wnd (mph) SW 26 SW 25 Vent Rate (mph-ft) 71500 77500 Vent Rate Category Good Good Remarks...None. .FORECAST FOR DAYS 3 THROUGH 7... .WEDNESDAY...Showers and a chance of thunderstorms. Lows around 60. Highs in the upper 60s. Minimum RH 53 percent. North winds 5 to 10 mph. .THURSDAY...Mostly cloudy. Lows around 50. Highs in the lower 70s. Minimum RH 52 percent. Northeast winds around 10 mph. .FRIDAY...Mostly cloudy. A chance of showers. Lows in the mid 50s. Highs in the mid 70s. Minimum RH 63 percent. East winds around 5 mph. .SATURDAY...Mostly cloudy with a chance of showers. Lows around 60. Highs around 80. Minimum RH 56 percent. South winds around 5 mph. .SUNDAY...Mostly cloudy. Lows in the lower 60s. Highs in the lower 80s. Minimum RH 52 percent. North winds around 5 mph. $$ MJA