203
FNUS75 KBYZ 160125
FWSBYZ

Spot Forecast for Zook...DOI
National Weather Service Billings MT
725 PM MDT Sat Aug 15 2026

Forecast is based on forecast start time of 1900 MDT on August 15.
If conditions become unrepresentative...contact the National Weather
Service.

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

.DISCUSSION...

Isolated light showers and thunderstorms are possible through the
early morning hours tonight. Strong RH recoveries are expected
with winds becoming light and variable. Tomorrow starts dry with
light winds, and an isolated shower or thunderstorm is possible
after 3 pm. Temperatures will be a few degrees warmer and RH
values a few percent lower than Saturday, and winds will become
northwesterly in the afternoon. Isolated shower/thunderstorm
chances continue Sunday night with winds becoming light and
variable again with continued strong RH recoveries overnight.
Temperatures get back into the mid 80s on Monday with MinRH values
around 30%. Another chance for isolated late afternoon
showers/thunderstorms, becoming more numerous in the evening hours
and overnight into Tuesday morning. Better chances for wetting
rain during this late Monday/Monday night period. Chambers

.TONIGHT...

Sky/weather.........Partly cloudy. Isolated light showers and
                    thunderstorms.
CWR.................2 percent.
Chance of lightning.10 percent.
Min temperature.....51-56.
Max humidity........91-96 percent.
Wind (20 ft)........
 Slope/valley.......Northwest winds 5 to 10 mph becoming light and
                    variable winds 2 to 6 mph overnight. Gusty and
                    erratic winds expected near thunderstorms.
 Ridgetop...........Northwest around 5 mph.
Mixing height.......400 ft AGL overnight.
Transport winds.....Southeast around 6 mph.

.SUNDAY...

Sky/weather.........Mostly sunny. Isolated light showers and
                    thunderstorms after 3pm.
CWR.................2 percent.
Chance of lightning.10 percent.
Max temperature.....79-84.
Min humidity........34-40 percent.
Wind (20 ft)........
 Slope/valley.......Light and variable winds 2 to 6 mph becoming
                    northwest winds 6 to 12 mph in the afternoon.
                    Gusty and erratic winds expected near thunderstorms.
 Ridgetop...........Northwest around 8 mph.
Mixing height.......8600 ft AGL in the afternoon.
Transport winds.....West around 15 mph.

.SUNDAY NIGHT...

Sky/weather.........Partly cloudy then becoming mostly cloudy.
                    Isolated light showers and thunderstorms in
                    the evening.
CWR.................5 percent.
Chance of lightning.19 percent.
Min temperature.....52-58.
Max humidity........79-85 percent.
Wind (20 ft)........
 Slope/valley.......Light and variable winds 2 to 5 mph. Gusty and
                    erratic winds expected near thunderstorms in
                    the evening.
 Ridgetop...........West around 5 mph.
Mixing height.......400 ft AGL overnight.
Transport winds.....West around 8 mph.

.MONDAY...

Sky/weather.........Mostly sunny. Isolated light showers and
                    thunderstorms after 3pm.
CWR.................5 percent.
Chance of lightning.10 percent.
Max temperature.....82-88.
Min humidity........27-33 percent.
Wind (20 ft)........
 Slope/valley.......Light and variable winds in the morning becoming
                    northwest winds 5 to 10 mph with gusts to 17mph
                    in the afternoon. Gusty and erratic winds
                    expected near thunderstorms.
 Ridgetop...........Northwest around 9 mph.
Mixing height.......10000 ft AGL in the afternoon.
Transport winds.....West around 12 mph.

$$
Forecaster...Chambers
Requested by...Jonathan Mantello
Type of request...WILDFIRE
.TAG 2619767.0/BYZ
.DELDT 08/15/26
.FormatterVersion 2.0.0
.EMAIL mtmcc@firenet.gov