As of 03:12 CDT

Weather in Otterville, IA

65°Current weather

Otterville, Sunday, 9 August, 03:12

Overcast. Feels like 66°. High 86°, low 65°.

Pressure29.94 inHg
Wind6.4 mph SE
Humidity94%
Visibility6.2 mi
Dew point63°

Monthly outlook for Otterville, IA: average high 81.3°, average low 66.1°. That is 1.3° above the climate normal for August. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 22 August (93.6°), the coolest 14 August (59.3°).

81.3°/66.1°
Average high / low
+1.3°
Above normal
6 / 5
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 August – 18 August78.6°78.9°-0.2°
19 August – 28 August85.9°79.1°+3.8°
29 August – 7 Septemberat normal77.4°

August records over 66 years

99.7°23 August 2023All-time high
43°28 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Dunkerton (12 mi).

Mon, 1083° / 70°0.08Rain
83 °Rain

Otterville, Monday, 10 August

Rain. High 83°, low 70°.

Pressure29.91 inHg
Wind7.8 mph E
Humidity86%
Visibility6.2 mi
Dew point71°
Tue, 1186° / 69°0.07Rain
86 °Rain

Otterville, Tuesday, 11 August

Rain. High 86°, low 69°.

Pressure29.80 inHg
Wind7.4 mph W
Humidity74%
Visibility6.2 mi
Dew point72°
Wed, 1281° / 67°0Overcast
81 °Overcast

Otterville, Wednesday, 12 August

Overcast. High 81°, low 67°.

Pressure29.85 inHg
Wind8.7 mph NE
Humidity75%
Visibility6.2 mi
Dew point71°
Thu, 1370° / 60°0.53Rain
70 °Rain

Otterville, Thursday, 13 August

Rain. High 70°, low 60°.

Pressure30.03 inHg
Wind11.3 mph E
Humidity76%
Visibility
Dew point61°
Fri, 1472° / 59°0.02Light rain
72 °Light rain

Otterville, Friday, 14 August

Light rain. High 72°, low 59°.

Pressure30.15 inHg
Wind12 mph E
Humidity67%
Visibility
Dew point59°
Sat, 1570° / 61°0.05Light rain
70 °Light rain

Otterville, Saturday, 15 August

Light rain. High 70°, low 61°.

Pressure30.18 inHg
Wind11.4 mph SE
Humidity75%
Visibility
Dew point60°
Sun, 1678° / 66°0.01Light rain
78 °Light rain

Otterville, Sunday, 16 August

Light rain. High 78°, low 66°.

Pressure30.09 inHg
Wind8.7 mph N
Humidity74%
Visibility
Dew point66°
Mon, 1779° / 62°0Overcast
79 °Overcast

Otterville, Monday, 17 August

Overcast. High 79°, low 62°.

Pressure30.09 inHg
Wind7.8 mph E
Humidity65%
Visibility
Dew point62°
Tue, 1883° / 63°0Overcast
83 °Overcast

Otterville, Tuesday, 18 August

Overcast. High 83°, low 63°.

Pressure29.94 inHg
Wind14.5 mph S
Humidity73%
Visibility
Dew point68°
Wed, 1987° / 70°0Partly cloudy
87 °Partly cloudy

Otterville, Wednesday, 19 August

Partly cloudy. High 87°, low 70°.

Pressure29.83 inHg
Wind11.9 mph SE
Humidity71%
Visibility
Dew point72°
Thu, 2091° / 73°0.01Light rain
91 °Light rain

Otterville, Thursday, 20 August

Light rain. High 91°, low 73°.

Pressure29.77 inHg
Wind14.1 mph SE
Humidity65%
Visibility
Dew point74°
Fri, 2181° / 67°0Overcast
81 °Overcast

Otterville, Friday, 21 August

Overcast. High 81°, low 67°.

Pressure29.94 inHg
Wind11 mph NE
Humidity64%
Visibility
Dew point66°
Sat, 2294° / 70°0Clear
94 °Clear

Otterville, Saturday, 22 August

Clear. High 94°, low 70°.

Pressure29.80 inHg
Wind17 mph S
Humidity70%
Visibility
Dew point71°
Sun, 2383° / 72°0.03Light rain
83 °Light rain

Otterville, Sunday, 23 August

Light rain. High 83°, low 72°.

Pressure29.85 inHg
Wind15.5 mph E
Humidity75%
Visibility
Dew point73°
Mon, 2479° / 65°0.24Light rain
79 °Light rain

Otterville, Monday, 24 August

Light rain. High 79°, low 65°.

Pressure30.03 inHg
Wind11.1 mph NE
Humidity83%
Visibility
Dew point69°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2580° / 63°0.14Climate normal
80 °Climate normal

Otterville, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high80°
Average low63°
Average precipitation0.14 in
Chance of precipitation32%
Record high93° (2003)
Record low51° (2025)
Wed, 2680° / 64°0.15Climate normal
80 °Climate normal

Otterville, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high80°
Average low64°
Average precipitation0.15 in
Chance of precipitation38%
Record high92° (2003)
Record low46° (1964)
Thu, 2779° / 64°0.15Climate normal
79 °Climate normal

Otterville, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high79°
Average low64°
Average precipitation0.15 in
Chance of precipitation37%
Record high92° (2013)
Record low52° (1967)
Fri, 2879° / 63°0.23Climate normal
79 °Climate normal

Otterville, Friday, 28 August

Climate normal for this date — 60-year average.

Average high79°
Average low63°
Average precipitation0.23 in
Chance of precipitation38%
Record high92° (1984)
Record low43° (1986)
Sat, 2979° / 62°0.16Climate normal
79 °Climate normal

Otterville, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high79°
Average low62°
Average precipitation0.16 in
Chance of precipitation32%
Record high92° (1984)
Record low47° (1986)
Sun, 3078° / 62°0.11Climate normal
78 °Climate normal

Otterville, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high78°
Average low62°
Average precipitation0.11 in
Chance of precipitation30%
Record high91° (2012)
Record low48° (1974)
Mon, 3178° / 61°0.06Climate normal
78 °Climate normal

Otterville, Monday, 31 August

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.06 in
Chance of precipitation23%
Record high92° (2000)
Record low45° (2009)
Tue, 0178° / 61°0.09Climate normal
78 °Climate normal

Otterville, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.09 in
Chance of precipitation27%
Record high91° (2011)
Record low46° (1967)
Wed, 0278° / 61°0.1Climate normal
78 °Climate normal

Otterville, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high78°
Average low61°
Average precipitation0.1 in
Chance of precipitation30%
Record high91° (2023)
Record low46° (1968)
Thu, 0377° / 61°0.1Climate normal
77 °Climate normal

Otterville, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high77°
Average low61°
Average precipitation0.1 in
Chance of precipitation27%
Record high94° (2023)
Record low42° (1974)
Fri, 0477° / 60°0.08Climate normal
77 °Climate normal

Otterville, Friday, 4 September

Climate normal for this date — 60-year average.

Average high77°
Average low60°
Average precipitation0.08 in
Chance of precipitation23%
Record high94° (2023)
Record low42° (1974)
Sat, 0577° / 60°0.08Climate normal
77 °Climate normal

Otterville, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high77°
Average low60°
Average precipitation0.08 in
Chance of precipitation25%
Record high91° (2023)
Record low42° (1962)
Sun, 0677° / 60°0.08Climate normal
77 °Climate normal

Otterville, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high77°
Average low60°
Average precipitation0.08 in
Chance of precipitation27%
Record high91° (1960)
Record low43° (1962)
Mon, 0776° / 60°0.14Climate normal
76 °Climate normal

Otterville, Monday, 7 September

Climate normal for this date — 60-year average.

Average high76°
Average low60°
Average precipitation0.14 in
Chance of precipitation27%
Record high91° (1978)
Record low44° (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 Otterville, 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 Otterville, 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.