549
FNUS75 KBYZ 301654
FWSBYZ

Spot Forecast for Rough Draw...BLM
National Weather Service Billings MT
1054 AM MDT Sun Aug 30 2026

Forecast is based on forecast start time of 1100 MDT on August 30.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

A cold front is moving through southern Montana this morning,
bringing showers, thunderstorms, and breezy conditions. The
primary concerns with the front and storms are gusty winds to 40
mph and brief heavy rainfall. A few storms could be strong and
produce gusts to 60 mph. The most likely timing for storms to
impact the site is between 12 PM MDT and 3 PM MDT. West to
northwest winds gusting in the 20s to 30 mph will spread across
the area through the afternoon. The minimum relative humidity
value occurred earlier this morning, with values above 50 percent
now. Look for clear conditions beginning this evening along with
winds becoming southwest into Monday. Matos

.REST OF TODAY...

Sky/weather.........Partly sunny. Chance of showers late in the
                    morning, then showers likely and scattered
                    thunderstorms in the afternoon.
CWR.................51 percent.
Chance of lightning.31 percent.
Max temperature.....71-75.
Min humidity........39-43 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 11 to 16 mph with gusts to
                    around 27 mph. Erratic wind gusts expected
with thunderstorms.
 Ridgetop...........Northwest around 15 mph.
Mixing height.......Increasing to 4500 ft AGL in the afternoon.
Transport winds.....Northwest around 16 mph.

.TONIGHT...

Sky/weather.........Clear.
CWR.................0 percent.
Chance of lightning.2 percent.
Min temperature.....51-55.
Max humidity........59-63 percent.
Wind (20 ft)........
 Slope/valley.......Southwest winds 5 to 9 mph. Gusts up to 22 mph
                    in the evening.
 Ridgetop...........Southwest around 10 mph.
Mixing height.......Decreasing to 400 ft AGL overnight.
Transport winds.....West around 9 mph.

$$
Forecaster...Matos
Requested by...Hannah
Type of request...WILDFIRE
.TAG 2620935.0/BYZ
.DELDT 08/30/26
.FormatterVersion 2.0.0
.EMAIL mtmcc@firenet.gov