FNUS75 KMSO 191201 FWSMSO Spot Forecast for Horn Fire National Weather Service Missoula MT 601 AM MDT Tue Aug 19 2025 Forecast is based on forecast start time of 0700 MDT on August 19. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...Warm and dry day expected for the fire with southerly winds during the afternoon. The atmosphere will become quite unstable during the afternoon today. Wednesday will be a few degrees cooler, but winds will be stronger along with the potential of afternoon storms. .TODAY... * Sky/Weather.........Mostly sunny. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Max Temperature.....85-90. * Min Humidity........5-10 percent. * Wind (20 ft)........Variable 3-6 mph shifting to the south 7-12 mph gusts to 20 mph in the afternoon. * Mixing Height.......4000 ft agl increasing to 13500 ft agl. * Mixing Winds........South 10 mph. * Precip Amount.......0.00 inches. .TONIGHT... * Sky/Weather.........Mostly clear. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Min Temperature.....50-55. * Max Humidity........28-33 percent. * Wind (20 ft)........South 8-13 mph becoming variable 3-7 mph after midnight. * Mixing Height.......11500 ft agl decreasing to 1500 ft agl. * Mixing Winds........South 10 mph. * Precip Amount.......0.00 inches. .WEDNESDAY... * Sky/Weather.........Partly cloudy. Slight chance of rain showers in the afternoon. * CWR (> 0.10 Inch)...Less than 10 percent. * Chance Lightning....Up to 10 percent. * Max Temperature.....83-88. * Min Humidity........11-16 percent. * Wind (20 ft)........Variable 3-8 mph becoming southwest 10-15 mph with gusts to 30 mph in the afternoon. * Mixing Height.......4000 ft agl increasing to 13000 ft agl. * Mixing Winds........South 20 mph. * Precip Amount.......0.00 inches. $$ Forecaster...Smith Requested by...USFC Type of request...WILDFIRE .TAG 2519876.6/MSO .DELDT 08/19/25 .FormatterVersion 2.0.0 .EMAIL mtddc@firenet.gov,cwstulz@gmail.com