FNUS53 KGRR 231840 FWFGRR Fire Weather Planning Forecast for Southwest Lower Michigan National Weather Service Grand Rapids MI 240 PM EDT Sun Aug 23 2026 ...Next Chance For Rain and Thunderstorms Wednesday... .DISCUSSION... Other than a few showers this afternoon, dry conditions are expected through Tuesday. Winds will be from the northwest Monday gusting to 20 mph with lighter variable winds Tuesday. Minimum relative humidity values will fall into the 40s to low 50s across much of the area Monday with upper 30s possible toward central lower Michigan. Tuesday values in the mid 30s to mid 40s are expected with the lowest values toward central lower Michigan. Winds become more southerly Wednesday with chances for showers and thunderstorms throughout the day. The best chances will be Wednesday late afternoon and evening. MIZ037>039-043>045-240830- Mason-Lake-Osceola-Oceana-Newaygo-Mecosta- Including the cities of Ludington, Baldwin, Reed City, Hart, Fremont, and Big Rapids 240 PM EDT Sun Aug 23 2026 .TONIGHT... Sky/weather.........Mostly clear (15-25 percent). Min temperature.....45-50. 24 hr trend......3 degrees cooler. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Northwest winds 5 to 10 mph. Gusts up to 20 mph in the evening. Mixing height.......Near Lake Michigan, 4500-5000 ft AGL decreasing to 2100-2600 ft AGL after midnight. Mixing height.......Inland, 5000-5500 ft AGL decreasing to 100-600 ft AGL after midnight. Transport winds.....Northwest 10 to 15 mph. Smoke dispersal.....1260 (excellent) decreasing to 70 (poor) after midnight. Pcpn Amount.........none to 0.02 in. .MONDAY... Sky/weather.........Sunny (10-20 percent). Max temperature.....73-78. 24 hr trend......6 degrees warmer. Min humidity........47-52 percent near Lake Michigan and 37-42 percent Inland. 24 hr trend......4 percent drier near Lake Michigan and 3 percent drier Inland. 20-foot winds.......Northwest winds 8 to 13 mph. Mixing height.......3300-3800 ft AGL near Lake Michigan and 4300-4800 ft AGL Inland. Transport winds.....Northwest 15 to 20 mph. Smoke dispersal.....780-930 (excellent). Pcpn Amount.........None. .MONDAY NIGHT... Sky/weather.........Partly cloudy (30-40 percent). Min temperature.....45-50. 24 hr trend......Unchanged. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Northwest winds around 5 mph in the evening becoming light. Mixing height.......Near Lake Michigan, 2600-3100 ft AGL decreasing to 400-900 ft AGL after midnight. Mixing height.......Inland, 3500-4000 ft AGL decreasing to 0-400 ft AGL after midnight. Transport winds.....Northwest 5 to 10 mph. Smoke dispersal.....700 (excellent) decreasing to 40 (poor) after midnight. Pcpn Amount.........None. .TUESDAY... Sky/weather.........Mostly sunny (25-35 percent). Max temperature.....78-83. 24 hr trend......5 degrees warmer. Min humidity........47-52 percent near Lake Michigan and 34-39 percent Inland. 24 hr trend......5 percent wetter near Lake Michigan and 4 percent drier Inland. 20-foot winds.......Light winds becoming west around 7 mph in the afternoon. Mixing height.......Near Lake Michigan, 3600-4100 ft AGL. Mixing height.......Inland, 2500-3000 ft AGL increasing to 5700-6200 ft AGL in the afternoon. Transport winds.....West 5 to 10 mph. Smoke dispersal.....260-570 (fair to good). Pcpn Amount.........None. $$ MIZ040-046-240830- Clare-Isabella- Including the cities of Clare and Mount Pleasant 240 PM EDT Sun Aug 23 2026 .TONIGHT... Sky/weather.........Partly cloudy (25-35 percent). Isolated rain showers until 8 PM. Chance of pcpn......20 percent early in the evening. Min temperature.....45-50. 24 hr trend......3 degrees cooler. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Northwest winds 7 to 12 mph. Gusts up to 22 mph in the evening. Mixing height.......4600-5100 ft AGL decreasing to 300-800 ft AGL after midnight. Transport winds.....Northwest 15 to 20 mph. Smoke dispersal.....1200 (excellent) decreasing to 90 (poor) after midnight. Pcpn Amount.........none to 0.02 in. .MONDAY... Sky/weather.........Sunny (15-25 percent). Max temperature.....74-79. 24 hr trend......6 degrees warmer. Min humidity........39-44 percent. 24 hr trend......6 percent drier. 20-foot winds.......Northwest winds 10 to 15 mph with higher gusts. Mixing height.......3200-3700 ft AGL increasing to 5300-5800 ft AGL in the afternoon. Transport winds.....Northwest 15 to 20 mph. Smoke dispersal.....840-1050 (excellent). Pcpn Amount.........None. .MONDAY NIGHT... Sky/weather.........Partly cloudy (30-40 percent). Min temperature.....42-47. 24 hr trend......1 degree cooler. Max humidity........100 percent. 24 hr trend......Unchanged. 20-foot winds.......Northwest winds around 7 mph in the evening becoming light. Mixing height.......4600-5100 ft AGL decreasing to 700-1200 ft AGL after midnight. Transport winds.....Northwest 10 to 15 mph. Smoke dispersal.....820 (excellent) decreasing to 60 (poor) after midnight. Pcpn Amount.........None. .TUESDAY... Sky/weather.........Sunny (20-30 percent). Max temperature.....Around 82. 24 hr trend......4 degrees warmer. Min humidity........33-38 percent. 24 hr trend......5 percent drier. 20-foot winds.......Northwest winds 5 to 6 mph. Mixing height.......2600-3100 ft AGL increasing to 6300-6800 ft AGL in the afternoon. Transport winds.....Northwest 5 to 10 mph. Smoke dispersal.....260-570 (fair to good). Pcpn Amount.........None. $$ MIZ050-056-064-071-240830- Muskegon-Ottawa-Allegan-Van Buren- Including the cities of Muskegon, Grand Haven, Jenison, Holland, and South Haven 240 PM EDT Sun Aug 23 2026 .TONIGHT... Sky/weather.........Mostly clear (10-20 percent). Min temperature.....50-55. 24 hr trend......3 degrees cooler. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Northwest winds around 8 mph in the evening becoming light. Mixing height.......Near Lake Michigan, 4400-4900 ft AGL. Mixing height.......Inland, 4900-5400 ft AGL decreasing to 400-900 ft AGL after midnight. Transport winds.....Northwest around 15 mph decreasing to around 5 mph after midnight. Smoke dispersal.....1150 (excellent) decreasing to 60 (poor) after midnight. Pcpn Amount.........None. .MONDAY... Sky/weather.........Sunny (5-15 percent). Max temperature.....71-76. 24 hr trend......3 degrees warmer. Min humidity........46-51 percent. 24 hr trend......Unchanged. 20-foot winds.......Light winds becoming northwest around 11 mph in the afternoon. Mixing height.......4400-4900 ft AGL. Transport winds.....Northwest 10 to 15 mph. Smoke dispersal.....670-790 (excellent). Pcpn Amount.........None. .MONDAY NIGHT... Sky/weather.........Partly cloudy (25-35 percent). Min temperature.....50-55. 24 hr trend......1 degree cooler. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Northwest winds around 5 mph in the evening becoming light. Mixing height.......3300-3800 ft AGL decreasing to 200-700 ft AGL after midnight. Transport winds.....Northwest 5 to 10 mph. Smoke dispersal.....40-550 (poor to good). Pcpn Amount.........None. .TUESDAY... Sky/weather.........Sunny (15-25 percent). Max temperature.....76-81. 24 hr trend......4 degrees warmer. Min humidity........44-49 percent. 24 hr trend......7 percent drier. 20-foot winds.......Light winds becoming west around 5 mph in the afternoon. Mixing height.......Near Lake Michigan, 3500-4000 ft AGL. Mixing height.......Inland, 2500-3000 ft AGL increasing to 5200-5700 ft AGL in the afternoon. Transport winds.....South around 5 mph shifting to the west in the afternoon. Smoke dispersal.....210-530 (fair to good). Pcpn Amount.........None. $$ MIZ051-052-057>059-240830- Montcalm-Gratiot-Kent-Ionia-Clinton- Including the cities of Greenville, Alma, Grand Rapids, Ionia, and St. Johns 240 PM EDT Sun Aug 23 2026 .TONIGHT... Sky/weather.........Partly cloudy (35-45 percent) until 9 PM, then clear (0-10 percent). Scattered rain showers until 8 PM. Chance of pcpn......30 percent early in the evening. Min temperature.....48-53. 24 hr trend......4 degrees cooler. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Northwest winds 6 to 11 mph. Mixing height.......5100-5600 ft AGL decreasing to 100-600 ft AGL after midnight. Transport winds.....Northwest 10 to 15 mph. Smoke dispersal.....1170 (excellent) decreasing to 50 (poor) after midnight. Pcpn Amount.........none to 0.02 in. .MONDAY... Sky/weather.........Sunny (5-15 percent). Max temperature.....74-79. 24 hr trend......5 degrees warmer. Min humidity........40-45 percent. 24 hr trend......3 percent drier. 20-foot winds.......West winds 9 to 14 mph. Mixing height.......3500-4000 ft AGL increasing to 5500-6000 ft AGL in the afternoon. Transport winds.....Northwest 15 to 20 mph. Smoke dispersal.....760-1080 (excellent). Pcpn Amount.........None. .MONDAY NIGHT... Sky/weather.........Partly cloudy (25-35 percent). Min temperature.....48-53. 24 hr trend......Unchanged. Max humidity........98 percent. 24 hr trend......Unchanged. 20-foot winds.......Northwest winds around 7 mph in the evening becoming light. Mixing height.......5000-5500 ft AGL decreasing to 400-900 ft AGL after midnight. Transport winds.....Northwest 5 to 10 mph. Smoke dispersal.....860 (excellent) decreasing to 40 (poor) after midnight. Pcpn Amount.........None. .TUESDAY... Sky/weather.........Sunny (15-25 percent). Max temperature.....Around 81. 24 hr trend......4 degrees warmer. Min humidity........37-42 percent. 24 hr trend......5 percent drier. 20-foot winds.......Light winds becoming west around 5 mph in the afternoon. Mixing height.......2500-3000 ft AGL increasing to 6100-6600 ft AGL in the afternoon. Transport winds.....Northwest 5 to 10 mph. Smoke dispersal.....200-520 (fair to good). Pcpn Amount.........None. $$ MIZ065>067-072>074-240830- Barry-Eaton-Ingham-Kalamazoo-Calhoun-Jackson- Including the cities of Hastings, Charlotte, Lansing, Kalamazoo, Battle Creek, and Jackson 240 PM EDT Sun Aug 23 2026 .TONIGHT... Sky/weather.........Partly cloudy (25-35 percent) until 9 PM, then clear (0-10 percent). Min temperature.....Around 51. 24 hr trend......4 degrees cooler. Max humidity........95-100 percent. 24 hr trend......Unchanged. 20-foot winds.......Northwest winds 5 to 10 mph. Gusts up to 20 mph in the evening. Mixing height.......5200-5700 ft AGL decreasing to 200-700 ft AGL after midnight. Transport winds.....Northwest 10 to 15 mph. Smoke dispersal.....1180 (excellent) decreasing to 50 (poor) after midnight. Pcpn Amount.........none to 0.01 in. .MONDAY... Sky/weather.........Sunny (5-15 percent). Max temperature.....Around 76. 24 hr trend......3 degrees warmer. Min humidity........41-46 percent. 24 hr trend......3 percent drier. 20-foot winds.......West winds 7 to 12 mph. Mixing height.......5300-5800 ft AGL. Transport winds.....West around 10 mph increasing to northwest around 20 mph in the afternoon. Smoke dispersal.....710-1040 (excellent). Pcpn Amount.........None. .MONDAY NIGHT... Sky/weather.........Partly cloudy (20-30 percent). Min temperature.....Around 51. 24 hr trend......1 degree warmer. Max humidity........98 percent. 24 hr trend......Unchanged. 20-foot winds.......Northwest winds around 7 mph in the evening becoming light. Mixing height.......4400-4900 ft AGL decreasing to 0-400 ft AGL after midnight. Transport winds.....Northwest 5 to 10 mph. Smoke dispersal.....820 (excellent) decreasing to 40 (poor) after midnight. Pcpn Amount.........None. .TUESDAY... Sky/weather.........Sunny (10-20 percent). Max temperature.....Around 80. 24 hr trend......4 degrees warmer. Min humidity........38-43 percent. 24 hr trend......1 percent drier. 20-foot winds.......Northwest winds up to 5 mph. Mixing height.......2300-2800 ft AGL increasing to 5400-5900 ft AGL in the afternoon. Transport winds.....Northwest around 5 mph. Smoke dispersal.....210-400 (fair to good). Pcpn Amount.........None. $$ .FORECAST FOR DAYS 3 THROUGH 7... .TUESDAY NIGHT...Partly cloudy. Lows in the upper 50s. Southwest winds 5 to 8 mph. .WEDNESDAY...Partly sunny with a chance of showers. Chance of thunderstorms in the afternoon. Highs in the lower 80s. Southwest winds 7 to 12 mph. .WEDNESDAY NIGHT...Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Southwest winds 6 to 11 mph. .THURSDAY...Mostly sunny. Highs around 80. West winds 6 to 11 mph. .THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Northwest winds 5 to 9 mph in the evening becoming light. .FRIDAY...Sunny. Highs around 80. Northwest winds 5 to 10 mph. .FRIDAY NIGHT...Mostly clear. Lows in the mid 50s. .SATURDAY...Mostly sunny. Highs around 80. .SATURDAY NIGHT...Partly cloudy. Lows in the upper 50s. .SUNDAY...Partly sunny with a chance of showers. Highs in the lower 80s. $$