320
FNUS75 KMSO 202142
FWSMSO

Spot Forecast for Grant Creek 16
National Weather Service Missoula MT
342 PM MDT Sun Sep 20 2026

Forecast is based on ignition time of 1800 MDT on September 20.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...High pressure will continue to bring warm conditions
through the next couple days. Winds will be light and generally
terrain driven. Overnight/early morning periods can expect
northeast winds shifting to southeast following sunrise. Winds
will shift to the west-southwest by early to mid-afternoon,
becoming westerly during the early evening timeframe.

.TONIGHT...

* Sky/Weather.........Clear.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Min Temperature.....43-48.
* Max Humidity........65-70 percent.
* Wind (20 ft)........Northeast 5-8 mph.
* Mixing Height.......500 ft agl.
* Mixing Winds........Southeast 5 mph.
* Precip Amount.......0.00 inches.

.MONDAY...

* Sky/Weather.........Sunny.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Max Temperature.....72-77.
* Min Humidity........29-34 percent.
* Wind (20 ft)........Southeast 3-6 mph in the morning shifting to
  west-southwest 4-6 mph in the afternoon.
* Mixing Height.......3000 ft agl increasing to 4500 ft agl late in
  the afternoon.
* Mixing Winds........South 5 mph.
* Precip Amount.......0.00 inches.

.MONDAY NIGHT...

* Sky/Weather.........Mostly clear.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Min Temperature.....47-52.
* Max Humidity........61-66 percent.
* Wind (20 ft)........West 3-5 mph becoming northeast 5-6 mph
  overnight.
* Mixing Height.......500 ft agl.
* Mixing Winds........Southeast 5 mph.
* Precip Amount.......0.00 inches.

.TUESDAY...

* Sky/Weather.........Partly cloudy.
* CWR (> 0.10 Inch)...0 percent.
* Chance Lightning....0 percent.
* Max Temperature.....71-76.
* Min Humidity........32-37 percent.
* Wind (20 ft)........Southeast 3-6 mph in the morning becoming
  west-southwest 3-6 mph in the afternoon.
* Mixing Height.......2500 ft agl increasing to 6500 ft agl in the
  afternoon.
* Mixing Winds........South 10 mph.
* Precip Amount.......0.00 inches.

$$
Forecaster...Lukinbeal
Requested by...Jonathan Schmidt
Type of request...PRESCRIBED
.TAG 2622192.0/MSO
.DELDT 09/20/26
.FormatterVersion 2.0.0
.EMAIL jonathan.schmidt@usda.gov