Monthly outlook for South Cheney, WA: average high 82.4°, average low 59.6°. That is 0.8° below the climate normal for August. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 15 August (90.9°), the coolest 23 August (54.3°).
82.4°/59.6°
Average high / low
−0.8°
Below normal
2 / 2
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
85.1°
85.2°
-0°
19 August – 28 August
78°
81.5°
-1.9°
29 August – 7 September
at normal
79.2°
—
August records over 66 years
107.1°4 August 1961All-time high
42.4°31 August 1964All-time low
Climate normals and records are computed from the nearest reference point — Spokane (15 mi).
Mon, 1085° / 56°0
85 °
South Cheney, Monday, 10 August
Clear. High 85°, low 56°.
Pressure29.88 inHg
Wind11 mph SW
Humidity24%
Visibility6.2 mi
Dew point40°
Tue, 1187° / 58°0
87 °
South Cheney, Tuesday, 11 August
Clear. High 87°, low 58°.
Pressure29.94 inHg
Wind9.3 mph SW
Humidity23%
Visibility6.2 mi
Dew point40°
Wed, 1286° / 62°0
86 °
South Cheney, Wednesday, 12 August
Partly cloudy. High 86°, low 62°.
Pressure29.83 inHg
Wind10.1 mph S
Humidity27%
Visibility6.2 mi
Dew point44°
Thu, 1387° / 61°0
87 °
South Cheney, Thursday, 13 August
Clear. High 87°, low 61°.
Pressure29.80 inHg
Wind7.2 mph W
Humidity30%
Visibility—
Dew point43°
Fri, 1490° / 62°0
90 °
South Cheney, Friday, 14 August
Clear. High 90°, low 62°.
Pressure29.85 inHg
Wind7.9 mph NE
Humidity23%
Visibility—
Dew point39°
Sat, 1591° / 64°0
91 °
South Cheney, Saturday, 15 August
Partly cloudy. High 91°, low 64°.
Pressure29.94 inHg
Wind8 mph SW
Humidity23%
Visibility—
Dew point40°
Sun, 1688° / 64°0.04
88 °
South Cheney, Sunday, 16 August
Light rain. High 88°, low 64°.
Pressure29.91 inHg
Wind12.7 mph S
Humidity27%
Visibility—
Dew point42°
Mon, 1774° / 56°0.02
74 °
South Cheney, Monday, 17 August
Light rain. High 74°, low 56°.
Pressure29.88 inHg
Wind17 mph W
Humidity44%
Visibility—
Dew point49°
Tue, 1876° / 54°0
76 °
South Cheney, Tuesday, 18 August
Overcast. High 76°, low 54°.
Pressure29.97 inHg
Wind11 mph W
Humidity41%
Visibility—
Dew point42°
Wed, 1982° / 58°0
82 °
South Cheney, Wednesday, 19 August
Overcast. High 82°, low 58°.
Pressure29.97 inHg
Wind9.8 mph SW
Humidity36%
Visibility—
Dew point44°
Thu, 2084° / 64°0
84 °
South Cheney, Thursday, 20 August
Light rain. High 84°, low 64°.
Pressure29.88 inHg
Wind5.8 mph NE
Humidity33%
Visibility—
Dew point45°
Fri, 2179° / 63°0.08
79 °
South Cheney, Friday, 21 August
Light rain. High 79°, low 63°.
Pressure29.91 inHg
Wind11.4 mph S
Humidity73%
Visibility—
Dew point55°
Sat, 2275° / 58°0.1
75 °
South Cheney, Saturday, 22 August
Light rain. High 75°, low 58°.
Pressure29.88 inHg
Wind14.2 mph S
Humidity45%
Visibility—
Dew point46°
Sun, 2376° / 54°0.01
76 °
South Cheney, Sunday, 23 August
Light rain. High 76°, low 54°.
Pressure30.03 inHg
Wind9.5 mph SW
Humidity47%
Visibility—
Dew point46°
Mon, 2473° / 60°0
73 °
South Cheney, Monday, 24 August
Overcast. High 73°, low 60°.
Pressure29.85 inHg
Wind12.2 mph SW
Humidity33%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 56°0.03
80 °
South Cheney, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low56°
Average precipitation0.03 in
Chance of precipitation10%
Record high95° (1996)
Record low43° (1992)
Wed, 2682° / 56°0.02
82 °
South Cheney, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low56°
Average precipitation0.02 in
Chance of precipitation10%
Record high97° (1996)
Record low47° (1976)
Thu, 2781° / 57°0.02
81 °
South Cheney, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high81°
Average low57°
Average precipitation0.02 in
Chance of precipitation12%
Record high95° (1986)
Record low43° (1960)
Fri, 2881° / 56°0.02
81 °
South Cheney, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low56°
Average precipitation0.02 in
Chance of precipitation10%
Record high99° (2009)
Record low44° (1960)
Sat, 2982° / 57°0.01
82 °
South Cheney, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low57°
Average precipitation0.01 in
Chance of precipitation13%
Record high96° (2017)
Record low43° (1965)
Sun, 3080° / 56°0.03
80 °
South Cheney, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high80°
Average low56°
Average precipitation0.03 in
Chance of precipitation12%
Record high95° (1967)
Record low45° (1965)
Mon, 3179° / 56°0.02
79 °
South Cheney, Monday, 31 August
Climate normal for this date — 60-year average.
Average high79°
Average low56°
Average precipitation0.02 in
Chance of precipitation17%
Record high103° (2022)
Record low42° (1964)
Tue, 0179° / 56°0.02
79 °
South Cheney, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high79°
Average low56°
Average precipitation0.02 in
Chance of precipitation10%
Record high97° (2025)
Record low45° (2021)
Wed, 0279° / 55°0.02
79 °
South Cheney, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low55°
Average precipitation0.02 in
Chance of precipitation10%
Record high100° (2025)
Record low44° (1999)
Thu, 0379° / 55°0.02
79 °
South Cheney, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high79°
Average low55°
Average precipitation0.02 in
Chance of precipitation13%
Record high101° (1988)
Record low43° (1980)
Fri, 0480° / 55°0.01
80 °
South Cheney, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low55°
Average precipitation0.01 in
Chance of precipitation12%
Record high99° (1988)
Record low45° (1965)
Sat, 0579° / 55°0.02
79 °
South Cheney, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high79°
Average low55°
Average precipitation0.02 in
Chance of precipitation7%
Record high96° (1988)
Record low44° (1969)
Sun, 0678° / 54°0.02
78 °
South Cheney, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low54°
Average precipitation0.02 in
Chance of precipitation15%
Record high95° (2024)
Record low41° (1960)
Mon, 0777° / 53°0.02
77 °
South Cheney, Monday, 7 September
Climate normal for this date — 60-year average.
Average high77°
Average low53°
Average precipitation0.02 in
Chance of precipitation10%
Record high95° (2024)
Record low41° (1992)
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 South Cheney, 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 South Cheney, 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.