210
FNUS75 KBYZ 191142
FWSBYZ

Spot Forecast for Valley...MTDNRC
National Weather Service Billings MT
542 AM MDT Wed Aug 19 2026

Forecast is based on forecast start time of 0800 MDT on August 19.
If conditions become unrepresentative...contact the National Weather
Service.

Please contact our office if you have questions
or concerns with this forecast.

.DISCUSSION...

Warm and dry conditions will prevail at the site through
Thursday. Winds will be west to northwest today, with gusts in the
teens to 20 mph through the afternoon. Relative humidity
recoveries will be good tonight. Expect strong mixing each
afternoon as well. The chance for precipitation through the period
is very low (less than 10 percent). Matos

.TODAY...

Sky/weather.........Sunny. Patchy smoke in the afternoon.
CWR.................0 percent.
Chance of lightning.1 percent.
Max temperature.....88-92.
Min humidity........18-22 percent.
Wind (20 ft)........
 Slope/valley.......West winds 5 to 10 mph with gusts to around 18
                    mph.
 Ridgetop...........West around 10 mph with gusts to 20 mph.
Mixing height.......Increasing to 10500 ft AGL in the afternoon.
Transport winds.....West around 16 mph.

.TONIGHT...

Sky/weather.........Mostly clear. Patchy smoke.
CWR.................0 percent.
Chance of lightning.2 percent.
Min temperature.....58-62.
Max humidity........59-63 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 5 to 10 mph in the evening
                    becoming light.
 Ridgetop...........Northwest up to 10 mph becoming southwest
around 5 mph.
Mixing height.......Decreasing to 400 ft AGL overnight.
Transport winds.....Southwest around 7 mph.

.THURSDAY...

Sky/weather.........Sunny. Patchy smoke in the morning.
CWR.................0 percent.
Chance of lightning.0 percent.
Max temperature.....91-95.
Min humidity........15-19 percent.
Wind (20 ft)........
 Slope/valley.......Light winds becoming north 4 to 7 mph.
 Ridgetop...........Southwest around 5 mph becoming north to
around 10 mph.
Mixing height.......Increasing to 10400 ft AGL in the afternoon.
Transport winds.....Southwest around 8 mph.

$$
Forecaster...Matos
Requested by...Phillips
Type of request...WILDFIRE
.TAG 2619973.1/BYZ
.DELDT 08/19/26
.FormatterVersion 2.0.0
.EMAIL mtmcc@firenet.gov