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Pomona, WA Weather Tomorrow

Before heading out, check tomorrow's Pomona weather and the extended 5 day forecast featuring precipitation potential, daytime and nighttime forecasts, temperature highs and lows in Fahrenheit and Celsius, sunrise and sunset times, cloud cover, wind chill, wind speed, and wind direction across the Pomona area and around Yakima county, Washington.
Updated: Wed Sep 2nd 2026 5:30 PM PDT
Pomona, WA Weather – 9-2 – Scattered Showers
73° / 53°
Scattered Showers
In Pomona, passing showers are likely with a high near 73°F and a low around 53°F. Rainfall predicted to have a 69% chance with an estimated 0.2in. Winds will be strong at speeds peaking at 24mph and gusts of 20.2mph at 6 PM. Humidity levels should be comfortable, sitting around 55% on average, the maximum being 72% at 11 PM and 55% being its lowest at 6 PM. Barometric pressure is its highest of 29.7inHg at 10 PM, a lowest point of 29.67inHg at 7 PM with an avg 29.68inHg.
Pomona, WA Weather – 9-3 – Sunny
64° / 47°

Weather Tomorrow

Sunny
Pomona may see a sunny day, with daytime highs of 64°F and overnight lows near 47°F. There's a very small chance of rainfall, only about 5%. Winds will be light at 8mph and gusts of 16.8mph at 3 PM. Humidity levels should be comfortable, sitting around 56% on average, the maximum being 87% at 6 AM and 29% being its lowest at 3 PM. Barometric pressure is its highest of 29.81inHg at 7 AM, a lowest point of 29.69inHg at 12 AM with an avg 29.75inHg.
Pomona, WA Weather – 9-4 – Scattered Showers
57° / 48°
Scattered Showers
Daytime highs will reach 57°F with lows dropping to 48°F in Pomona, where on and off showers are set to occur. The chance of rain is 77% with an estimated 0.18in. Winds will be light at 8mph and gusts of 14.5mph at 11 AM. The humidity will be on the higher side, averaging about 70%, the maximum being 82% at 10 AM and 54% being its lowest at 6 PM. Barometric pressure is its highest of 29.99inHg at 11 PM, a lowest point of 29.77inHg at 12 AM with an avg 29.89inHg.
Pomona, WA Weather – 9-5 – Overcast
61° / 47°
Overcast
Daytime highs will reach 61°F with lows dropping to 47°F in Pomona, where it will be overcast. Rainfall predicted to have a 62% chance with an estimated 0.07in. Wind will be moderate, blowing around 12mph on average and gusts of 17.2mph at 6 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 85% at 7 AM and 42% being its lowest at 4 PM. Barometric pressure is its highest of 30.08inHg at 8 AM, a lowest point of 29.99inHg at 12 AM with an avg 30.04inHg.
Pomona, WA Weather – 9-6 – Overcast
68° / 51°
Overcast
It will be overcast in Pomona, with a high of 68°F and a low of 51°F. There's a very small chance of rainfall, only about 9%. Winds will be light at 9mph and gusts of 19.2mph at 4 PM. Humidity levels should be comfortable, sitting around 50% on average, the maximum being 73% at 2 AM and 29% being its lowest at 5 PM. Barometric pressure is its highest of 30.06inHg at 12 AM, a lowest point of 29.94inHg at 6 PM with an avg 30.01inHg.
Pomona, WA Weather – 9-7 – Overcast
74° / 56°
Overcast
Daytime highs will reach 74°F with lows dropping to 56°F in Pomona, where skies will be overcast. There's a very small chance of rainfall, only about 4%. Winds will be light at 8mph and gusts of 17.7mph at 1 AM. Humidity levels should be comfortable, sitting around 39% on average, the maximum being 56% at 5 AM and 20% being its lowest at 2 PM. Barometric pressure is its highest of 30inHg at 8 AM, a lowest point of 29.89inHg at 5 PM with an avg 29.95inHg.

Currently

Light Drizzle 65°F
29.67 inHg.
Barometer
53%
Humidity
SSW 34.6 mph
Wind
Light Drizzle

5 Day Forecast Nearby

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