Monthly outlook for Booneville, IA: average high 86.1°, average low 64.8°. That is 2.4° above the climate normal for August. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 11 August (100.2°), the coolest 21 August (51.6°).
86.1°/64.8°
Average high / low
+2.4°
Above normal
3 / 5
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 August – 18 August
86.9°
81.7°
+2.9°
19 August – 28 August
84.7°
81.8°
+1.6°
29 August – 7 September
at normal
80°
—
August records over 66 years
101.1°16 August 1983All-time high
43.9°28 August 1986All-time low
Climate normals and records are computed from the nearest reference point — Urbandale (10 mi).
Mon, 1090° / 75°0
90 °
Booneville, Monday, 10 August
Light rain. High 90°, low 75°.
Pressure29.83 inHg
Wind7.9 mph SW
Humidity40%
Visibility6.2 mi
Dew point63°
Tue, 11100° / 74°0
100 °
Booneville, Tuesday, 11 August
Light rain. High 100°, low 74°.
Pressure29.74 inHg
Wind8 mph SW
Humidity38%
Visibility6.2 mi
Dew point64°
Wed, 1292° / 71°0.04
92 °
Booneville, Wednesday, 12 August
Light rain. High 92°, low 71°.
Pressure29.88 inHg
Wind7.3 mph NE
Humidity45%
Visibility6.2 mi
Dew point61°
Thu, 1373° / 63°0.11
73 °
Booneville, Thursday, 13 August
Light rain. High 73°, low 63°.
Pressure29.97 inHg
Wind17.1 mph E
Humidity64%
Visibility—
Dew point59°
Fri, 1480° / 59°0
80 °
Booneville, Friday, 14 August
Overcast. High 80°, low 59°.
Pressure30.09 inHg
Wind13 mph E
Humidity43%
Visibility—
Dew point53°
Sat, 1568° / 60°0.08
68 °
Booneville, Saturday, 15 August
Light rain. High 68°, low 60°.
Pressure30.18 inHg
Wind14.6 mph E
Humidity95%
Visibility—
Dew point60°
Sun, 1686° / 62°0
86 °
Booneville, Sunday, 16 August
Overcast. High 86°, low 62°.
Pressure30.09 inHg
Wind6.4 mph SE
Humidity60%
Visibility—
Dew point62°
Mon, 1790° / 67°0
90 °
Booneville, Monday, 17 August
Light rain. High 90°, low 67°.
Pressure30.00 inHg
Wind11.3 mph S
Humidity44%
Visibility—
Dew point61°
Tue, 1895° / 69°0
95 °
Booneville, Tuesday, 18 August
Partly cloudy. High 95°, low 69°.
Pressure29.94 inHg
Wind13 mph W
Humidity47%
Visibility—
Dew point66°
Wed, 1980° / 64°0
80 °
Booneville, Wednesday, 19 August
Overcast. High 80°, low 64°.
Pressure30.03 inHg
Wind17.5 mph N
Humidity54%
Visibility—
Dew point57°
Thu, 2070° / 57°0.02
70 °
Booneville, Thursday, 20 August
Light rain. High 70°, low 57°.
Pressure30.09 inHg
Wind15.2 mph NE
Humidity44%
Visibility—
Dew point46°
Fri, 2173° / 52°0
73 °
Booneville, Friday, 21 August
Overcast. High 73°, low 52°.
Pressure30.06 inHg
Wind12.8 mph SE
Humidity43%
Visibility—
Dew point44°
Sat, 2295° / 59°0
95 °
Booneville, Saturday, 22 August
Light rain. High 95°, low 59°.
Pressure29.80 inHg
Wind12 mph NW
Humidity34%
Visibility—
Dew point54°
Sun, 2396° / 65°0
96 °
Booneville, Sunday, 23 August
Clear. High 96°, low 65°.
Pressure29.91 inHg
Wind8.4 mph W
Humidity21%
Visibility—
Dew point43°
Mon, 2494° / 67°0
94 °
Booneville, Monday, 24 August
Overcast. High 94°, low 67°.
Pressure29.85 inHg
Wind10.8 mph S
Humidity38%
Visibility—
Dew point61°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2582° / 65°0.14
82 °
Booneville, Tuesday, 25 August
Climate normal for this date — 60-year average.
Average high82°
Average low65°
Average precipitation0.14 in
Chance of precipitation35%
Record high97° (2003)
Record low52° (2015)
Wed, 2682° / 66°0.19
82 °
Booneville, Wednesday, 26 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.19 in
Chance of precipitation37%
Record high95° (2013)
Record low50° (2015)
Thu, 2782° / 66°0.16
82 °
Booneville, Thursday, 27 August
Climate normal for this date — 60-year average.
Average high82°
Average low66°
Average precipitation0.16 in
Chance of precipitation35%
Record high96° (2013)
Record low52° (1971)
Fri, 2882° / 64°0.18
82 °
Booneville, Friday, 28 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.18 in
Chance of precipitation32%
Record high96° (1984)
Record low44° (1986)
Sat, 2982° / 64°0.11
82 °
Booneville, Saturday, 29 August
Climate normal for this date — 60-year average.
Average high82°
Average low64°
Average precipitation0.11 in
Chance of precipitation23%
Record high94° (1984)
Record low49° (1988)
Sun, 3081° / 64°0.1
81 °
Booneville, Sunday, 30 August
Climate normal for this date — 60-year average.
Average high81°
Average low64°
Average precipitation0.1 in
Chance of precipitation27%
Record high98° (2013)
Record low49° (2009)
Mon, 3180° / 63°0.09
80 °
Booneville, Monday, 31 August
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.09 in
Chance of precipitation25%
Record high93° (2000)
Record low48° (2009)
Tue, 0180° / 63°0.09
80 °
Booneville, Tuesday, 1 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.09 in
Chance of precipitation23%
Record high94° (1984)
Record low46° (1967)
Wed, 0280° / 64°0.11
80 °
Booneville, Wednesday, 2 September
Climate normal for this date — 60-year average.
Average high80°
Average low64°
Average precipitation0.11 in
Chance of precipitation33%
Record high94° (2000)
Record low52° (1974)
Thu, 0380° / 63°0.09
80 °
Booneville, Thursday, 3 September
Climate normal for this date — 60-year average.
Average high80°
Average low63°
Average precipitation0.09 in
Chance of precipitation23%
Record high96° (2023)
Record low42° (1974)
Fri, 0479° / 62°0.09
79 °
Booneville, Friday, 4 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.09 in
Chance of precipitation28%
Record high96° (2023)
Record low44° (1974)
Sat, 0580° / 62°0.09
80 °
Booneville, Saturday, 5 September
Climate normal for this date — 60-year average.
Average high80°
Average low62°
Average precipitation0.09 in
Chance of precipitation20%
Record high94° (2023)
Record low44° (1962)
Sun, 0679° / 62°0.09
79 °
Booneville, Sunday, 6 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.09 in
Chance of precipitation23%
Record high93° (2020)
Record low45° (1988)
Mon, 0779° / 62°0.13
79 °
Booneville, Monday, 7 September
Climate normal for this date — 60-year average.
Average high79°
Average low62°
Average precipitation0.13 in
Chance of precipitation28%
Record high93° (1971)
Record low43° (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 Booneville, 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 Booneville, 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.