Monthly outlook for Roza, WA: average high 88.6°, average low 57.1°. That is 1.3° 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 (95.9°), the coolest 21 August (51.7°).
88.6°/57.1°
Average high / low
+1.3°
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
88.9°
87.5°
+0.8°
18 August – 27 August
88.1°
83.6°
+2.5°
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 (14 mi).
Sun, 0980° / 55°0
80 °
Roza, Sunday, 9 August
Clear. High 80°, low 55°.
Pressure29.85 inHg
Wind2 mph SW
Humidity16%
Visibility6.2 mi
Dew point35°
Mon, 1089° / 53°0
89 °
Roza, Monday, 10 August
Clear. High 89°, low 53°.
Pressure29.88 inHg
Wind5.3 mph W
Humidity17%
Visibility6.2 mi
Dew point36°
Tue, 1191° / 54°0
91 °
Roza, Tuesday, 11 August
Clear. High 91°, low 54°.
Pressure29.91 inHg
Wind2.1 mph SW
Humidity17%
Visibility6.2 mi
Dew point36°
Wed, 1288° / 58°0
88 °
Roza, Wednesday, 12 August
Clear. High 88°, low 58°.
Pressure29.80 inHg
Wind7.2 mph NW
Humidity19%
Visibility6.2 mi
Dew point39°
Thu, 1387° / 55°0
87 °
Roza, Thursday, 13 August
Clear. High 87°, low 55°.
Pressure29.83 inHg
Wind12.2 mph N
Humidity20%
Visibility—
Dew point36°
Fri, 1487° / 57°0
87 °
Roza, Friday, 14 August
Clear. High 87°, low 57°.
Pressure29.94 inHg
Wind10.6 mph E
Humidity19%
Visibility—
Dew point36°
Sat, 1593° / 62°0
93 °
Roza, Saturday, 15 August
Overcast. High 93°, low 62°.
Pressure29.91 inHg
Wind10.7 mph S
Humidity13%
Visibility—
Dew point32°
Sun, 1696° / 62°0
96 °
Roza, Sunday, 16 August
Clear. High 96°, low 62°.
Pressure29.85 inHg
Wind19.3 mph W
Humidity10%
Visibility—
Dew point28°
Mon, 1796° / 61°0
96 °
Roza, Monday, 17 August
Overcast. High 96°, low 61°.
Pressure29.85 inHg
Wind12.3 mph NW
Humidity11%
Visibility—
Dew point30°
Tue, 1891° / 63°0
91 °
Roza, Tuesday, 18 August
Overcast. High 91°, low 63°.
Pressure29.85 inHg
Wind11.7 mph N
Humidity13%
Visibility—
Dew point31°
Wed, 1985° / 58°0
85 °
Roza, Wednesday, 19 August
Overcast. High 85°, low 58°.
Pressure29.91 inHg
Wind16.9 mph N
Humidity22%
Visibility—
Dew point40°
Thu, 2086° / 55°0
86 °
Roza, Thursday, 20 August
Clear. High 86°, low 55°.
Pressure29.83 inHg
Wind21.4 mph NW
Humidity19%
Visibility—
Dew point36°
Fri, 2188° / 52°0
88 °
Roza, Friday, 21 August
Clear. High 88°, low 52°.
Pressure29.85 inHg
Wind9.2 mph NW
Humidity16%
Visibility—
Dew point31°
Sat, 2291° / 58°0
91 °
Roza, Saturday, 22 August
Overcast. High 91°, low 58°.
Pressure29.77 inHg
Wind14.9 mph NW
Humidity12%
Visibility—
Dew point28°
Sun, 2389° / 57°0
89 °
Roza, Sunday, 23 August
Partly cloudy. High 89°, low 57°.
Pressure29.80 inHg
Wind18.8 mph NW
Humidity11%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2482° / 57°0.02
82 °
Roza, 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 °
Roza, 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 °
Roza, 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 °
Roza, 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 °
Roza, 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 °
Roza, 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 °
Roza, 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 °
Roza, 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 °
Roza, 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 °
Roza, 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 °
Roza, 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 °
Roza, 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 °
Roza, 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 °
Roza, 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 Roza, 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 Roza, 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.