FNUS75 KMSO 190149 FWSMSO Spot Forecast for Knowles National Weather Service Missoula MT 749 PM MDT Mon Aug 18 2025 Forecast is based on forecast start time of 0600 MDT on August 19. If conditions become unrepresentative...contact the National Weather Service. .DISCUSSION...The warming trend continued on Monday with high temperatures topping out in the 90s and humidity dropping into the teens and low 20s. Winds increased in the afternoon with gusts up to 20 mph. Tuesday is on track to be the hottest and driest day of the week. Thunderstorms are expected to develop late in the day, after 1900 MDT. Thunderstorm chances will remain through around 2200 MDT. Outflow winds to 40 mph will be the primary concern should an isolated storm move towards the fire. West winds trend higher on Wednesday with gusts in the low 20 mph range as a weak dry cold front passes. This will allow for a slight increase in MinRH, with temperatures cooling a few degrees. Behind the front on Thursday, temperatures will return to near normal, with less wind, but low MinRH. .TUESDAY... * Sky/Weather.........Mostly sunny. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Max Temperature.....91-96. * Min Humidity........12-17 percent. * Wind (20 ft)........Variable 2-4 mph becoming west 6-9 mph with gusts around 16 mph in the afternoon. * Mixing Height.......4000 ft agl increasing to 10500 ft agl. * Mixing Winds........West 10 mph. * Precip Amount.......0.00 inches. .TUESDAY NIGHT... * Sky/Weather.........Partly cloudy. Chance of showers and slight chance of thunderstorms in the evening. * CWR (> 0.10 Inch)...10 percent. * Chance Lightning....20 percent. * Min Temperature.....61-66. * Max Humidity........46-51 percent. * Wind (20 ft)........West 6-7 mph with gusts around 20 mph as storms pass. * Mixing Height.......7000 ft agl decreasing to 1500 ft agl early in the evening. * Mixing Winds........West 10 mph. * Precip Amount.......0.03 inches. .WEDNESDAY... * Sky/Weather.........Mostly sunny. * CWR (> 0.10 Inch)...0 percent. * Chance Lightning....0 percent. * Max Temperature.....86-91. * Min Humidity........17-22 percent. * Wind (20 ft)........West 5-10 mph, increasing to 8-12 mph with gusts around 20 mph in the afternoon. * Mixing Height.......3500 ft agl increasing to 11000 ft agl. * Mixing Winds........West 10 mph. * Precip Amount.......0.00 inches. .FORECAST DAYS 3 THROUGH 5... .THURSDAY... Mostly clear. Lows 58-63. Highs 85-90. West winds 5-12 mph. .FRIDAY... Clear. Lows 57-62. Highs 88-93. Diurnal terrain winds to 10 mph. .SATURDAY... Mostly clear. Lows 59-64. Highs 90-95. Diurnal terrain winds to 10 mph. $$ Forecaster...Kitsmiller Requested by...Erin Ryan Type of request...WILDFIRE .TAG 2520187.0/MSO .DELDT 08/18/25 .FormatterVersion 2.0.0 .EMAIL erin_ryan@firenet.gov