306
FNUS75 KSLC 302027
FWSSLC

Spot Forecast for Colonial Heritage Festival...USBR
National Weather Service Salt Lake City UT
227 PM MDT Mon Jun 30 2025

Forecast is based on forecast start time of 1500 MDT on June 30.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...High pressure will be in place today and tomorrow,
resulting in very hot and dry conditions with generally light
winds. High temperatures will be near 100F both this afternoon and
tomorrow. Isolated showers have developed over the higher terrain
today, and will also do so tomorrow afternoon into the early
evening. Given light winds, there is only a small chance (5-10%)
that these storms will drift off the terrain and impact the event.

Temperatures will decrease Wednesday into Thursday as moisture
increases over the area. This will bring an increased threat of
showers and thunderstorms that could produce gusty winds and
lightning. There is a 20-30% chance of storms impacting the
event Wednesday afternoon into the early evening and a 30-40%
chance of storms impacting the evening Thursday afternoon into the
early evening. Showers will tend to dissipate during the early
evening and will not be an impact during the overnight and morning
hours. Drier conditions will move in beginning Friday.

.REST OF TODAY...

Sky/weather.........Mostly sunny (10-20 percent cloud cover).
Chance of pcpn......10 percent.
Chance of lightning.5 percent.
Max temperature.....96-98.
Min humidity........13-15 percent.
Surface winds (mph).West winds 5-10 mph.

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent cloud cover).
Chance of pcpn......0 percent.
Chance of lightning.2 percent.
Min temperature.....68-72.
Max humidity........34-38 percent.
Surface winds (mph).West winds 5-10 mph becoming east in the late
                    evening and overnight.

.TUESDAY...

Sky/weather.........Mostly sunny (15-25 percent cloud cover).
Chance of pcpn......10 percent.
Chance of lightning.10 percent.
Max temperature.....98-102.
Min humidity........12-16 percent.
Surface winds (mph).East winds 5-10 mph becoming southwest 5-10 mph
                    in the afternoon.

$$
Forecaster...Traphagan
Requested by...Jeff Beaty
Type of request...OTHER
.TAG 2516675.0/SLC
.DELDT 06/30/25
.FormatterVersion 2.0.0
.EMAIL jbeaty@usbr.gov