Spot Forecast
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
238
FNUS76 KPDT 040151
FWSPDT
Spot Forecast for Kittitas Co Fair...KCSO
National Weather Service Pendleton OR
651 PM PDT Thu Sep 3 2026
Forecast is based on forecast start time of 1900 PDT on September 03.
***Thunderstorms imply gusty and erratic winds ***
***Winds are 20 foot 10-minute averages ***
***CWR: Chance of wetting rain 0.10 or greater ***
***Ventilation Index is derived from transport wind
multiplied by the mixing height in 100`s of ft.
Categories are a generalized indicator only:
low (< 200), moderate (200-500), high (500-700),
and very high (> 700). ***
If you have questions or concerns with this forecast, please
contact our office at (541) 276-8134.
.DISCUSSION...Latest radar showed some heavy showers, with possible
thunder over and around Ellensburg. Expect these showers to effect
the area through 8 PM, possibly as long as 9 PM.
Low temperatures will decrease from the 50s into the 40s overnight.
.REST OF TONIGHT...
Sky/weather.........Partly cloudy to mostly cloudy. (35-60 percent)
Showers and possibly a thunderstorm through 8 PM,
possibly as long as 9 PM then dry weather the rest
of the night with another slight chance (20%) of
rain showers early in the morning.
Chance of pcpn......100 percent, decreasing to 20 percent.
Chance of lightning.30 percent.
Min temperature.....44-47.
Max humidity........95-100 percent.
Surface winds (mph).Northwest winds 5 to 10 mph early in the evening
becoming light. Winds could be higher in any heavy
showers or thunderstorms.
Mixing height.......500 ft AGL.
Transport winds.....Southwest around 5 mph shifting to the
northwest 8 to 9 mph early in the evening.
TIME (PDT) 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM 6AM
Chc of ltng (%).10 0 0 0 0 0 0 0 0 0 0 0
Temp............62 57 54 53 52 51 50 48 47 46 45 44
RH..............62 70 77 81 83 87 89 91 95 98 99 100
Surface wnd dir.NW NW NW NW NW NW NW NW N N N N
Surface wnd spd.6 6 5 5 5 5 4 4 3 3 3 3
Surface wnd gst.8 7 6 6
$$
Forecaster...Nierenberg
Requested by...Michael Bruce #40
Type of request...OTHER
.TAG 2621178.0/PDT
.DELDT 09/03/26
.FormatterVersion 2.0.0
.EMAIL michael.bruce@co.kittitas.wa.us,kittcom@kittcom.gov