Monthly outlook for Pomona, WA: average high 93.1°, average low 61.9°. That is 3.8° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 1 days and 0.1 inches. The warmest day looks like 16 August (100.5°), the coolest 10 August (56.6°).
93.1°/61.9°
Average high / low
+3.8°
Above normal
0 / 1
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
93.4°
87.5°
+3.3°
18 August – 27 August
92.5°
83.6°
+5°
28 August – 6 September
at normal
81.6°
—
August records over 66 years
108.9°15 August 2023All-time high
41.7°29 August 1965All-time low
Climate normals and records are computed from the nearest reference point — Yakima (7 mi).
Sun, 0983° / 59°0
83 °
Pomona, Sunday, 9 August
Clear. High 83°, low 59°.
Pressure29.85 inHg
Wind6.8 mph S
Humidity16%
Visibility6.2 mi
Dew point36°
Mon, 1094° / 57°0
94 °
Pomona, Monday, 10 August
Clear. High 94°, low 57°.
Pressure29.88 inHg
Wind6.5 mph S
Humidity18%
Visibility6.2 mi
Dew point37°
Tue, 1195° / 60°0
95 °
Pomona, Tuesday, 11 August
Mostly clear. High 95°, low 60°.
Pressure29.91 inHg
Wind6.2 mph S
Humidity18%
Visibility6.2 mi
Dew point38°
Wed, 1292° / 63°0
92 °
Pomona, Wednesday, 12 August
Clear. High 92°, low 63°.
Pressure29.80 inHg
Wind2.1 mph SW
Humidity19%
Visibility6.2 mi
Dew point40°
Thu, 1391° / 60°0
91 °
Pomona, Thursday, 13 August
Clear. High 91°, low 60°.
Pressure29.83 inHg
Wind10.4 mph N
Humidity21%
Visibility—
Dew point40°
Fri, 1491° / 63°0
91 °
Pomona, Friday, 14 August
Clear. High 91°, low 63°.
Pressure29.91 inHg
Wind9 mph E
Humidity19%
Visibility—
Dew point39°
Sat, 1597° / 66°0
97 °
Pomona, Saturday, 15 August
Overcast. High 97°, low 66°.
Pressure29.91 inHg
Wind11.3 mph SE
Humidity13%
Visibility—
Dew point34°
Sun, 16101° / 67°0
101 °
Pomona, Sunday, 16 August
Clear. High 101°, low 67°.
Pressure29.85 inHg
Wind19 mph W
Humidity10%
Visibility—
Dew point31°
Mon, 1799° / 66°0
99 °
Pomona, Monday, 17 August
Overcast. High 99°, low 66°.
Pressure29.83 inHg
Wind10.5 mph S
Humidity11%
Visibility—
Dew point32°
Tue, 1895° / 67°0
95 °
Pomona, Tuesday, 18 August
Overcast. High 95°, low 67°.
Pressure29.85 inHg
Wind8.9 mph N
Humidity13%
Visibility—
Dew point33°
Wed, 1990° / 63°0
90 °
Pomona, Wednesday, 19 August
Overcast. High 90°, low 63°.
Pressure29.88 inHg
Wind13.2 mph N
Humidity22%
Visibility—
Dew point43°
Thu, 2090° / 60°0
90 °
Pomona, Thursday, 20 August
Clear. High 90°, low 60°.
Pressure29.83 inHg
Wind17.1 mph NW
Humidity18%
Visibility—
Dew point38°
Fri, 2192° / 57°0
92 °
Pomona, Friday, 21 August
Clear. High 92°, low 57°.
Pressure29.85 inHg
Wind7.6 mph S
Humidity16%
Visibility—
Dew point34°
Sat, 2296° / 64°0
96 °
Pomona, Saturday, 22 August
Overcast. High 96°, low 64°.
Pressure29.77 inHg
Wind13.8 mph N
Humidity13%
Visibility—
Dew point33°
Sun, 2393° / 61°0
93 °
Pomona, Sunday, 23 August
Partly cloudy. High 93°, low 61°.
Pressure29.77 inHg
Wind13.1 mph NW
Humidity11%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2482° / 57°0.02
82 °
Pomona, Monday, 24 August
Climate normal for this date — 60-year average.
Average high82°
Average low57°
Average precipitation0.02 in
Chance of precipitation7%
Record high100° (2025)
Record low44° (1975)
Tue, 2582° / 56°0.02
82 °
Pomona, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.02 in
Chance of precipitation7%
Record high101° (2025)
Record low45° (1960)
Wed, 2683° / 56°0
83 °
Pomona, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high83°
Average low56°
Average precipitation0 in
Chance of precipitation2%
Record high98° (1996)
Record low45° (1976)
Thu, 2783° / 57°0
83 °
Pomona, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high83°
Average low57°
Average precipitation0 in
Chance of precipitation2%
Record high98° (2023)
Record low44° (1960)
Fri, 2883° / 56°0
83 °
Pomona, Friday, 28 August
Climate normal for this date — 60-year average.
Average high83°
Average low56°
Average precipitation0 in
Chance of precipitation3%
Record high100° (2023)
Record low44° (1960)
Sat, 2983° / 57°0.01
83 °
Pomona, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high83°
Average low57°
Average precipitation0.01 in
Chance of precipitation5%
Record high101° (2017)
Record low42° (1965)
Sun, 3081° / 56°0.02
81 °
Pomona, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low56°
Average precipitation0.02 in
Chance of precipitation7%
Record high97° (2022)
Record low42° (1965)
Mon, 3181° / 55°0
81 °
Pomona, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low55°
Average precipitation0 in
Chance of precipitation2%
Record high101° (2022)
Record low43° (1975)
Tue, 0181° / 55°0.01
81 °
Pomona, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low55°
Average precipitation0.01 in
Chance of precipitation7%
Record high99° (2022)
Record low43° (1975)
Wed, 0281° / 54°0
81 °
Pomona, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low54°
Average precipitation0 in
Chance of precipitation3%
Record high100° (2022)
Record low44° (1975)
Thu, 0382° / 55°0.01
82 °
Pomona, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high82°
Average low55°
Average precipitation0.01 in
Chance of precipitation8%
Record high103° (2025)
Record low43° (2000)
Fri, 0482° / 54°0
82 °
Pomona, Friday, 4 September
Climate normal for this date — 60-year average.
Average high82°
Average low54°
Average precipitation0 in
Chance of precipitation2%
Record high100° (2025)
Record low45° (1996)
Sat, 0581° / 54°0
81 °
Pomona, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high81°
Average low54°
Average precipitation0 in
Chance of precipitation5%
Record high99° (2025)
Record low43° (1969)
Sun, 0680° / 54°0.01
80 °
Pomona, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low54°
Average precipitation0.01 in
Chance of precipitation10%
Record high100° (2020)
Record low42° (1960)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Pomona, WA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Pomona, WA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.