Spot Forecast
Issued by NWS San Francisco Bay Area, CA

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053
FNUS76 KMTR 210103
FWSMTR

Spot Forecast for Williams...CAL FIRE BEU
National Weather Service San Francisco CA
603 PM PDT Mon Jul 20 2026

Forecast is based on forecast start time of 2300 PDT on July 20.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...Mid and high level clouds may produce a passing
sprinkle tonight otherwise dry weather persists through midweek.
Night-time recoveries will be poor to moderate. Daytime highs will
be hot nearing the lower 90s Tuesday and Wednesday.

.TONIGHT...

Sky/weather.........Partly cloudy. Passing sprinkle possible.
Min temperature.....65-69.
Max humidity........30-40 percent.
Wind (20 ft)........Northwest winds 5 to 10 mph.
CWR.................0 percent.
Chance of thunder...0 percent.
Mixing height.......400 ft AGL.
Transport winds.....North around 9 mph.
Marine layer........None.

.TUESDAY...

Sky/weather.........Partly cloudy.
Max temperature.....90-94.
Min humidity........25-29 percent.
Wind (20 ft)........Light winds becoming northwest 5 to 10 mph in
                    the afternoon.
CWR.................0 percent.
Chance of thunder...0 percent.
Mixing height.......7500 ft AGL.
Transport winds.....Northwest around 5 mph, increasing to 10 to 15 mph
in the afternoon.
Marine layer........None.

.TUESDAY NIGHT...

Sky/weather.........Mostly clear.
Min temperature.....64-68.
Max humidity........45-55 percent.
Wind (20 ft)........Northwest winds 5 to 12 mph. Gusts up to 20 mph
                    in the evening.
CWR.................0 percent.
Chance of thunder...0 percent.
Mixing height.......400 ft AGL.
Transport winds.....Northwest around 7 mph.
Marine layer........None.

.WEDNESDAY...

Sky/weather.........Sunny.
Max temperature.....89-93.
Min humidity........27-31 percent.
Wind (20 ft)........Light winds becoming southwest 5 to 9 mph in
                    the afternoon.
CWR.................0 percent.
Chance of thunder...0 percent.
Mixing height.......6500 ft AGL.
Transport winds.....Northwest around 6 mph, increasing to 10 to 15
mph in the afternoon.
Marine layer........None.

$$
Forecaster...R_CANEPA
Requested by...Nick Ciardella
Type of request...WILDFIRE
.TAG 2617842.0/MTR
.DELDT 07/20/26
.FormatterVersion 2.0.0
.EMAIL nick.ciardella@fire.ca.gov