Monthly outlook for South Creek, WA: average high 82.3°, average low 55.5°. That is 4.5° above the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 24 August (91.3°), the coolest 11 August (50.4°).
82.3°/55.5°
Average high / low
+4.5°
Above normal
1 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
79.2°
75.1°
+2.3°
19 August – 28 August
87.4°
72.8°
+8.1°
29 August – 7 September
at normal
71°
—
August records over 66 years
97.9°9 August 1981All-time high
42.6°24 August 2021All-time low
Climate normals and records are computed from the nearest reference point — Graham (6 mi).
Mon, 1079° / 52°0
79 °
South Creek, Monday, 10 August
Partly cloudy. High 79°, low 52°.
Pressure30.06 inHg
Wind4.3 mph W
Humidity47%
Visibility6.2 mi
Dew point51°
Tue, 1183° / 50°0
83 °
South Creek, Tuesday, 11 August
Clear. High 83°, low 50°.
Pressure30.09 inHg
Wind3.4 mph W
Humidity43%
Visibility6.2 mi
Dew point51°
Wed, 1276° / 56°0
76 °
South Creek, Wednesday, 12 August
Overcast. High 76°, low 56°.
Pressure30.03 inHg
Wind4.5 mph W
Humidity69%
Visibility6.2 mi
Dew point57°
Thu, 1386° / 53°0
86 °
South Creek, Thursday, 13 August
Clear. High 86°, low 53°.
Pressure29.88 inHg
Wind5.4 mph N
Humidity43%
Visibility6.2 mi
Dew point54°
Fri, 1488° / 55°0
88 °
South Creek, Friday, 14 August
Clear. High 88°, low 55°.
Pressure29.88 inHg
Wind6.3 mph NW
Humidity29%
Visibility—
Dew point48°
Sat, 1582° / 54°0
82 °
South Creek, Saturday, 15 August
Overcast. High 82°, low 54°.
Pressure30.00 inHg
Wind9.3 mph W
Humidity38%
Visibility—
Dew point49°
Sun, 1674° / 52°0
74 °
South Creek, Sunday, 16 August
Overcast. High 74°, low 52°.
Pressure30.06 inHg
Wind8.5 mph W
Humidity49%
Visibility—
Dew point52°
Mon, 1779° / 53°0
79 °
South Creek, Monday, 17 August
Light rain. High 79°, low 53°.
Pressure30.00 inHg
Wind6.7 mph W
Humidity37%
Visibility—
Dew point48°
Tue, 1866° / 59°0.07
66 °
South Creek, Tuesday, 18 August
Light rain. High 66°, low 59°.
Pressure30.03 inHg
Wind2 mph N
Humidity91%
Visibility—
Dew point61°
Wed, 1982° / 61°0.02
82 °
South Creek, Wednesday, 19 August
Light rain. High 82°, low 61°.
Pressure30.00 inHg
Wind7.7 mph W
Humidity50%
Visibility—
Dew point57°
Thu, 2085° / 57°0
85 °
South Creek, Thursday, 20 August
Overcast. High 85°, low 57°.
Pressure30.06 inHg
Wind5.9 mph NW
Humidity38%
Visibility—
Dew point53°
Fri, 2187° / 58°0
87 °
South Creek, Friday, 21 August
Mostly clear. High 87°, low 58°.
Pressure30.09 inHg
Wind6.6 mph N
Humidity36%
Visibility—
Dew point52°
Sat, 2288° / 57°0
88 °
South Creek, Saturday, 22 August
Overcast. High 88°, low 57°.
Pressure30.09 inHg
Wind8.8 mph N
Humidity31%
Visibility—
Dew point49°
Sun, 2391° / 56°0
91 °
South Creek, Sunday, 23 August
Clear. High 91°, low 56°.
Pressure29.97 inHg
Wind7.5 mph N
Humidity26%
Visibility—
Dew point47°
Mon, 2491° / 58°0
91 °
South Creek, Monday, 24 August
Clear. High 91°, low 58°.
Pressure29.91 inHg
Wind7 mph SW
Humidity27%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2573° / 52°0.07
73 °
South Creek, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high73°
Average low52°
Average precipitation0.07 in
Chance of precipitation18%
Record high88° (2022)
Record low45° (1973)
Wed, 2674° / 53°0.04
74 °
South Creek, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high74°
Average low53°
Average precipitation0.04 in
Chance of precipitation18%
Record high88° (1986)
Record low46° (1993)
Thu, 2773° / 54°0.09
73 °
South Creek, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high73°
Average low54°
Average precipitation0.09 in
Chance of precipitation27%
Record high90° (1986)
Record low47° (1995)
Fri, 2873° / 53°0.05
73 °
South Creek, Friday, 28 August
Climate normal for this date — 60-year average.
Average high73°
Average low53°
Average precipitation0.05 in
Chance of precipitation15%
Record high94° (2017)
Record low44° (1960)
Sat, 2972° / 54°0.11
72 °
South Creek, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high72°
Average low54°
Average precipitation0.11 in
Chance of precipitation27%
Record high89° (2017)
Record low44° (1980)
Sun, 3071° / 53°0.09
71 °
South Creek, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high71°
Average low53°
Average precipitation0.09 in
Chance of precipitation33%
Record high90° (2022)
Record low44° (1965)
Mon, 3171° / 53°0.06
71 °
South Creek, Monday, 31 August
Climate normal for this date — 60-year average.
Average high71°
Average low53°
Average precipitation0.06 in
Chance of precipitation28%
Record high91° (1987)
Record low43° (1964)
Tue, 0171° / 52°0.11
71 °
South Creek, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high71°
Average low52°
Average precipitation0.11 in
Chance of precipitation30%
Record high87° (1987)
Record low41° (1973)
Wed, 0272° / 52°0.08
72 °
South Creek, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high72°
Average low52°
Average precipitation0.08 in
Chance of precipitation25%
Record high93° (1988)
Record low43° (2000)
Thu, 0371° / 52°0.07
71 °
South Creek, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high71°
Average low52°
Average precipitation0.07 in
Chance of precipitation25%
Record high91° (1988)
Record low44° (1975)
Fri, 0471° / 52°0.04
71 °
South Creek, Friday, 4 September
Climate normal for this date — 60-year average.
Average high71°
Average low52°
Average precipitation0.04 in
Chance of precipitation22%
Record high91° (2017)
Record low44° (1965)
Sat, 0571° / 53°0.09
71 °
South Creek, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high71°
Average low53°
Average precipitation0.09 in
Chance of precipitation22%
Record high95° (2017)
Record low44° (2002)
Sun, 0670° / 52°0.11
70 °
South Creek, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high70°
Average low52°
Average precipitation0.11 in
Chance of precipitation28%
Record high90° (2017)
Record low44° (1969)
Mon, 0770° / 52°0.07
70 °
South Creek, Monday, 7 September
Climate normal for this date — 60-year average.
Average high70°
Average low52°
Average precipitation0.07 in
Chance of precipitation23%
Record high87° (1981)
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 Creek, 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 Creek, 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.