Monthly outlook for Middleton, OR: average high 86.1°, average low 56.1°. That is 2.4° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 23 August (92.8°), the coolest 13 August (51.6°).
86.1°/56.1°
Average high / low
+2.4°
Above normal
0 / 2
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
85.6°
82.8°
+1.5°
18 August – 27 August
87°
80°
+3.9°
28 August – 6 September
at normal
78.5°
—
August records over 66 years
105.3°12 August 2021All-time high
46°28 August 2024All-time low
Climate normals and records are computed from the nearest reference point — King City (5 mi).
Sun, 0984° / 52°0
84 °
Middleton, Sunday, 9 August
Partly cloudy. High 84°, low 52°.
Pressure30.03 inHg
Wind4.5 mph N
Humidity32%
Visibility6.2 mi
Dew point46°
Mon, 1086° / 52°0
86 °
Middleton, Monday, 10 August
Clear. High 86°, low 52°.
Pressure30.06 inHg
Wind5.8 mph N
Humidity38%
Visibility6.2 mi
Dew point49°
Tue, 1186° / 55°0
86 °
Middleton, Tuesday, 11 August
Clear. High 86°, low 55°.
Pressure30.09 inHg
Wind4 mph N
Humidity42%
Visibility6.2 mi
Dew point53°
Wed, 1281° / 58°0
81 °
Middleton, Wednesday, 12 August
Overcast. High 81°, low 58°.
Pressure30.06 inHg
Wind4 mph N
Humidity55%
Visibility6.2 mi
Dew point55°
Thu, 1380° / 52°0
80 °
Middleton, Thursday, 13 August
Clear. High 80°, low 52°.
Pressure29.97 inHg
Wind10.2 mph N
Humidity36%
Visibility—
Dew point45°
Fri, 1486° / 53°0
86 °
Middleton, Friday, 14 August
Clear. High 86°, low 53°.
Pressure29.94 inHg
Wind7.5 mph N
Humidity31%
Visibility—
Dew point45°
Sat, 1587° / 59°0
87 °
Middleton, Saturday, 15 August
Overcast. High 87°, low 59°.
Pressure29.97 inHg
Wind6.8 mph NW
Humidity34%
Visibility—
Dew point49°
Sun, 1688° / 57°0
88 °
Middleton, Sunday, 16 August
Clear. High 88°, low 57°.
Pressure30.00 inHg
Wind7.1 mph N
Humidity26%
Visibility—
Dew point44°
Mon, 1792° / 58°0
92 °
Middleton, Monday, 17 August
Clear. High 92°, low 58°.
Pressure29.97 inHg
Wind5.7 mph NW
Humidity23%
Visibility—
Dew point43°
Tue, 1885° / 55°0
85 °
Middleton, Tuesday, 18 August
Overcast. High 85°, low 55°.
Pressure30.06 inHg
Wind4.6 mph W
Humidity26%
Visibility—
Dew point43°
Wed, 1982° / 58°0
82 °
Middleton, Wednesday, 19 August
Overcast. High 82°, low 58°.
Pressure30.03 inHg
Wind5.3 mph NE
Humidity33%
Visibility—
Dew point46°
Thu, 2086° / 57°0
86 °
Middleton, Thursday, 20 August
Clear. High 86°, low 57°.
Pressure30.00 inHg
Wind6 mph W
Humidity34%
Visibility—
Dew point50°
Fri, 2187° / 57°0
87 °
Middleton, Friday, 21 August
Clear. High 87°, low 57°.
Pressure30.00 inHg
Wind7.7 mph N
Humidity34%
Visibility—
Dew point49°
Sat, 2289° / 60°0
89 °
Middleton, Saturday, 22 August
Clear. High 89°, low 60°.
Pressure29.94 inHg
Wind9.7 mph N
Humidity30%
Visibility—
Dew point48°
Sun, 2393° / 61°0
93 °
Middleton, Sunday, 23 August
Mostly clear. High 93°, low 61°.
Pressure29.85 inHg
Wind7.2 mph N
Humidity26%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2479° / 56°0.06
79 °
Middleton, Monday, 24 August
Climate normal for this date — 60-year average.
Average high79°
Average low56°
Average precipitation0.06 in
Chance of precipitation13%
Record high100° (1996)
Record low50° (1975)
Tue, 2580° / 56°0.04
80 °
Middleton, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low56°
Average precipitation0.04 in
Chance of precipitation12%
Record high94° (1967)
Record low49° (1975)
Wed, 2681° / 56°0.02
81 °
Middleton, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high81°
Average low56°
Average precipitation0.02 in
Chance of precipitation7%
Record high99° (1986)
Record low48° (1993)
Thu, 2780° / 57°0.02
80 °
Middleton, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low57°
Average precipitation0.02 in
Chance of precipitation13%
Record high97° (1972)
Record low49° (1960)
Fri, 2881° / 56°0.02
81 °
Middleton, Friday, 28 August
Climate normal for this date — 60-year average.
Average high81°
Average low56°
Average precipitation0.02 in
Chance of precipitation10%
Record high99° (2017)
Record low46° (2024)
Sat, 2979° / 57°0.06
79 °
Middleton, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high79°
Average low57°
Average precipitation0.06 in
Chance of precipitation20%
Record high94° (1974)
Record low47° (1965)
Sun, 3077° / 56°0.05
77 °
Middleton, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high77°
Average low56°
Average precipitation0.05 in
Chance of precipitation20%
Record high97° (2022)
Record low47° (1966)
Mon, 3178° / 56°0.03
78 °
Middleton, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low56°
Average precipitation0.03 in
Chance of precipitation18%
Record high99° (1987)
Record low48° (1964)
Tue, 0178° / 56°0.04
78 °
Middleton, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low56°
Average precipitation0.04 in
Chance of precipitation17%
Record high97° (1988)
Record low45° (1973)
Wed, 0279° / 55°0.04
79 °
Middleton, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low55°
Average precipitation0.04 in
Chance of precipitation13%
Record high103° (1988)
Record low45° (1960)
Thu, 0378° / 56°0.04
78 °
Middleton, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low56°
Average precipitation0.04 in
Chance of precipitation18%
Record high97° (2017)
Record low47° (1964)
Fri, 0479° / 55°0.03
79 °
Middleton, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low55°
Average precipitation0.03 in
Chance of precipitation15%
Record high100° (2017)
Record low47° (2000)
Sat, 0578° / 55°0.03
78 °
Middleton, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low55°
Average precipitation0.03 in
Chance of precipitation15%
Record high99° (2024)
Record low46° (1969)
Sun, 0678° / 55°0.06
78 °
Middleton, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low55°
Average precipitation0.06 in
Chance of precipitation18%
Record high95° (2024)
Record low46° (1969)
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 Middleton, OR 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 Middleton, OR 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.