Monthly outlook for Shady Oak, IA: average high 89.7°, average low 66.7°. That is 5.6° above the climate normal for August. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 22 August (113.4°), the coolest 14 August (59.5°).
89.7°/66.7°
Average high / low
+5.6°
Above normal
6 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
85.5°
79.5°
+3.3°
19 August – 28 August
96.7°
79.7°
+9.4°
29 August – 7 September
at normal
78.2°
—
August records over 66 years
99.9°15 August 1988All-time high
41.9°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Vincent (11 mi).
Mon, 1087° / 70°0.2
87 °
Shady Oak, Monday, 10 August
Rain. High 87°, low 70°.
Pressure29.85 inHg
Wind12.4 mph E
Humidity58%
Visibility6.2 mi
Dew point67°
Tue, 1199° / 71°0
99 °
Shady Oak, Tuesday, 11 August
Mostly clear. High 99°, low 71°.
Pressure29.74 inHg
Wind4.5 mph NE
Humidity40%
Visibility6.2 mi
Dew point65°
Wed, 1291° / 68°0
91 °
Shady Oak, Wednesday, 12 August
Overcast. High 91°, low 68°.
Pressure29.85 inHg
Wind11.5 mph E
Humidity45%
Visibility6.2 mi
Dew point63°
Thu, 1375° / 60°0.47
75 °
Shady Oak, Thursday, 13 August
Rain. High 75°, low 60°.
Pressure30.03 inHg
Wind11.5 mph NE
Humidity49%
Visibility—
Dew point53°
Fri, 1475° / 59°0.17
75 °
Shady Oak, Friday, 14 August
Light rain. High 75°, low 59°.
Pressure30.12 inHg
Wind12.9 mph SE
Humidity53%
Visibility—
Dew point54°
Sat, 1570° / 60°0.04
70 °
Shady Oak, Saturday, 15 August
Light rain. High 70°, low 60°.
Pressure30.15 inHg
Wind10.8 mph SE
Humidity74%
Visibility—
Dew point58°
Sun, 1685° / 66°0
85 °
Shady Oak, Sunday, 16 August
Overcast. High 85°, low 66°.
Pressure30.12 inHg
Wind6.5 mph NW
Humidity60%
Visibility—
Dew point63°
Mon, 1788° / 64°0
88 °
Shady Oak, Monday, 17 August
Overcast. High 88°, low 64°.
Pressure30.06 inHg
Wind9.6 mph SE
Humidity42%
Visibility—
Dew point58°
Tue, 1894° / 65°0.03
94 °
Shady Oak, Tuesday, 18 August
Light rain. High 94°, low 65°.
Pressure29.85 inHg
Wind16.3 mph S
Humidity50%
Visibility—
Dew point65°
Wed, 1999° / 70°0
99 °
Shady Oak, Wednesday, 19 August
Overcast. High 99°, low 70°.
Pressure29.74 inHg
Wind14.5 mph SE
Humidity33%
Visibility—
Dew point62°
Thu, 20101° / 73°0
101 °
Shady Oak, Thursday, 20 August
Partly cloudy. High 101°, low 73°.
Pressure29.77 inHg
Wind18.5 mph N
Humidity29%
Visibility—
Dew point60°
Fri, 2184° / 63°0.04
84 °
Shady Oak, Friday, 21 August
Light rain. High 84°, low 63°.
Pressure29.97 inHg
Wind10.4 mph S
Humidity41%
Visibility—
Dew point54°
Sat, 22113° / 70°0
113 °
Shady Oak, Saturday, 22 August
Partly cloudy. High 113°, low 70°.
Pressure29.71 inHg
Wind16.7 mph SW
Humidity26%
Visibility—
Dew point56°
Sun, 2389° / 72°0.04
89 °
Shady Oak, Sunday, 23 August
Light rain. High 89°, low 72°.
Pressure29.83 inHg
Wind17.2 mph N
Humidity52%
Visibility—
Dew point67°
Mon, 2493° / 70°0.23
93 °
Shady Oak, Monday, 24 August
Light rain. High 93°, low 70°.
Pressure29.97 inHg
Wind15.4 mph E
Humidity70%
Visibility—
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 63°0.13
80 °
Shady Oak, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.13 in
Chance of precipitation33%
Record high94° (2020)
Record low50° (2025)
Wed, 2680° / 64°0.13
80 °
Shady Oak, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation35%
Record high93° (2020)
Record low48° (2015)
Thu, 2780° / 64°0.13
80 °
Shady Oak, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.13 in
Chance of precipitation35%
Record high94° (2020)
Record low49° (1971)
Fri, 2880° / 63°0.28
80 °
Shady Oak, Friday, 28 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.28 in
Chance of precipitation30%
Record high94° (1984)
Record low42° (1986)
Sat, 2980° / 63°0.1
80 °
Shady Oak, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.1 in
Chance of precipitation22%
Record high95° (2012)
Record low48° (1988)
Sun, 3079° / 62°0.09
79 °
Shady Oak, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.09 in
Chance of precipitation23%
Record high96° (2012)
Record low48° (2009)
Mon, 3178° / 61°0.11
78 °
Shady Oak, Monday, 31 August
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.11 in
Chance of precipitation32%
Record high91° (2000)
Record low46° (2009)
Tue, 0178° / 61°0.09
78 °
Shady Oak, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.09 in
Chance of precipitation28%
Record high91° (2011)
Record low46° (1967)
Wed, 0279° / 62°0.1
79 °
Shady Oak, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.1 in
Chance of precipitation42%
Record high93° (2023)
Record low49° (1968)
Thu, 0378° / 62°0.07
78 °
Shady Oak, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high78°
Average low62°
Average precipitation0.07 in
Chance of precipitation23%
Record high93° (2023)
Record low40° (1974)
Fri, 0478° / 61°0.11
78 °
Shady Oak, Friday, 4 September
Climate normal for this date — 60-year average.
Average high78°
Average low61°
Average precipitation0.11 in
Chance of precipitation22%
Record high94° (2023)
Record low44° (1974)
Sat, 0578° / 60°0.1
78 °
Shady Oak, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.1 in
Chance of precipitation28%
Record high92° (2023)
Record low41° (1962)
Sun, 0678° / 60°0.06
78 °
Shady Oak, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high78°
Average low60°
Average precipitation0.06 in
Chance of precipitation25%
Record high93° (2020)
Record low44° (2025)
Mon, 0777° / 60°0.15
77 °
Shady Oak, Monday, 7 September
Climate normal for this date — 60-year average.
Average high77°
Average low60°
Average precipitation0.15 in
Chance of precipitation27%
Record high92° (1978)
Record low42° (2025)
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 Shady Oak, IA 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 Shady Oak, IA 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.