Monthly outlook for Pleasant Hill, IA: average high 84.3°, average low 63.6°. That is 1.2° above the climate normal for August. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 18 August (96.7°), the coolest 21 August (50.2°).
84.3°/63.6°
Average high / low
+1.2°
Above normal
4 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 August – 17 August
83.8°
82.1°
+0.9°
18 August – 27 August
85°
82.2°
+1.6°
28 August – 6 September
at normal
80.7°
—
August records over 66 years
101.5°16 August 1983All-time high
45°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Des Moines (6 mi).
Sun, 0995° / 73°0
95 °
Pleasant Hill, Sunday, 9 August
Mostly clear. High 95°, low 73°.
Pressure29.77 inHg
Wind18.3 mph SW
Humidity40%
Visibility6.2 mi
Dew point65°
Mon, 1092° / 74°0.06
92 °
Pleasant Hill, Monday, 10 August
Light rain. High 92°, low 74°.
Pressure29.83 inHg
Wind5.2 mph S
Humidity46%
Visibility6.2 mi
Dew point66°
Tue, 1195° / 70°0
95 °
Pleasant Hill, Tuesday, 11 August
Mostly clear. High 95°, low 70°.
Pressure29.74 inHg
Wind3 mph S
Humidity42%
Visibility6.2 mi
Dew point65°
Wed, 1288° / 71°0.04
88 °
Pleasant Hill, Wednesday, 12 August
Light rain. High 88°, low 71°.
Pressure29.88 inHg
Wind5.5 mph N
Humidity66%
Visibility6.2 mi
Dew point67°
Thu, 1372° / 61°0.15
72 °
Pleasant Hill, Thursday, 13 August
Light rain. High 72°, low 61°.
Pressure29.94 inHg
Wind14.5 mph NE
Humidity64%
Visibility—
Dew point58°
Fri, 1478° / 59°0
78 °
Pleasant Hill, Friday, 14 August
Overcast. High 78°, low 59°.
Pressure30.09 inHg
Wind13.9 mph E
Humidity50%
Visibility—
Dew point56°
Sat, 1568° / 60°0.07
68 °
Pleasant Hill, Saturday, 15 August
Light rain. High 68°, low 60°.
Pressure30.21 inHg
Wind15.6 mph E
Humidity94%
Visibility—
Dew point60°
Sun, 1680° / 62°0.01
80 °
Pleasant Hill, Sunday, 16 August
Light rain. High 80°, low 62°.
Pressure30.12 inHg
Wind6.3 mph NE
Humidity71%
Visibility—
Dew point63°
Mon, 1788° / 67°0.01
88 °
Pleasant Hill, Monday, 17 August
Light rain. High 88°, low 67°.
Pressure30.03 inHg
Wind9.8 mph SE
Humidity54%
Visibility—
Dew point64°
Tue, 1897° / 68°0
97 °
Pleasant Hill, Tuesday, 18 August
Partly cloudy. High 97°, low 68°.
Pressure29.94 inHg
Wind13.2 mph SW
Humidity47%
Visibility—
Dew point65°
Wed, 1979° / 62°0.01
79 °
Pleasant Hill, Wednesday, 19 August
Light rain. High 79°, low 62°.
Pressure30.03 inHg
Wind16 mph N
Humidity65%
Visibility—
Dew point59°
Thu, 2071° / 56°0.02
71 °
Pleasant Hill, Thursday, 20 August
Light rain. High 71°, low 56°.
Pressure30.12 inHg
Wind13.4 mph NE
Humidity46%
Visibility—
Dew point47°
Fri, 2174° / 50°0
74 °
Pleasant Hill, Friday, 21 August
Overcast. High 74°, low 50°.
Pressure30.06 inHg
Wind11.3 mph SE
Humidity48%
Visibility—
Dew point46°
Sat, 2294° / 59°0
94 °
Pleasant Hill, Saturday, 22 August
Partly cloudy. High 94°, low 59°.
Pressure29.80 inHg
Wind13.1 mph NW
Humidity39%
Visibility—
Dew point56°
Sun, 2396° / 65°0
96 °
Pleasant Hill, Sunday, 23 August
Clear. High 96°, low 65°.
Pressure29.91 inHg
Wind8.1 mph W
Humidity22%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2482° / 66°0.11
82 °
Pleasant Hill, Monday, 24 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.11 in
Chance of precipitation22%
Record high98° (2023)
Record low51° (1966)
Tue, 2583° / 65°0.12
83 °
Pleasant Hill, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high83°
Average low65°
Average precipitation0.12 in
Chance of precipitation32%
Record high97° (2003)
Record low53° (2015)
Wed, 2682° / 66°0.19
82 °
Pleasant Hill, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.19 in
Chance of precipitation33%
Record high95° (2013)
Record low50° (2015)
Thu, 2782° / 66°0.17
82 °
Pleasant Hill, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.17 in
Chance of precipitation30%
Record high97° (2013)
Record low53° (1971)
Fri, 2882° / 65°0.14
82 °
Pleasant Hill, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.14 in
Chance of precipitation35%
Record high96° (1984)
Record low45° (1986)
Sat, 2982° / 65°0.11
82 °
Pleasant Hill, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.11 in
Chance of precipitation27%
Record high95° (1984)
Record low50° (1988)
Sun, 3081° / 65°0.16
81 °
Pleasant Hill, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low65°
Average precipitation0.16 in
Chance of precipitation22%
Record high98° (2013)
Record low50° (2009)
Mon, 3181° / 64°0.09
81 °
Pleasant Hill, Monday, 31 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.09 in
Chance of precipitation25%
Record high94° (2000)
Record low47° (2009)
Tue, 0181° / 64°0.09
81 °
Pleasant Hill, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.09 in
Chance of precipitation27%
Record high95° (1984)
Record low47° (1967)
Wed, 0281° / 64°0.11
81 °
Pleasant Hill, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.11 in
Chance of precipitation30%
Record high95° (2000)
Record low52° (1974)
Thu, 0380° / 64°0.09
80 °
Pleasant Hill, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.09 in
Chance of precipitation23%
Record high95° (2023)
Record low43° (1974)
Fri, 0480° / 63°0.07
80 °
Pleasant Hill, Friday, 4 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.07 in
Chance of precipitation28%
Record high96° (2012)
Record low45° (1974)
Sat, 0580° / 62°0.08
80 °
Pleasant Hill, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.08 in
Chance of precipitation23%
Record high93° (2023)
Record low45° (1962)
Sun, 0680° / 63°0.08
80 °
Pleasant Hill, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.08 in
Chance of precipitation23%
Record high93° (2020)
Record low46° (1988)
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 Pleasant Hill, 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 Pleasant Hill, 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.