As of 22:48 CDT

Weather in Anderson, IA

78°Current weather

Anderson, Saturday, 8 August, 22:48

Overcast. Feels like 80°. High 82°, low 65°.

Pressure29.88 inHg
Wind12.8 mph SE
Humidity79%
Visibility6.2 mi
Dew point71°

Monthly outlook for Anderson, IA: average high 84.1°, average low 66°. That is 0.3° above the climate normal for August. Precipitation is expected on 6 days (about 1.4 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 9 August (98.7°), the coolest 21 August (54.7°).

84.1°/66°
Average high / low
+0.3°
Above normal
6 / 5
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 August – 17 August84.1°83.5°+0.3°
18 August – 27 August84.1°83.6°+0.2°
28 August – 6 Septemberat normal82.1°

August records over 66 years

101.8°16 August 1983All-time high
46°28 August 1986All-time low

Climate normals and records are computed from the nearest reference point — Shenandoah (13 mi).

Sun, 0999° / 77°0.03Light rain
99 °Light rain

Anderson, Sunday, 9 August

Light rain. High 99°, low 77°.

Pressure29.74 inHg
Wind14.7 mph SW
Humidity40%
Visibility6.2 mi
Dew point66°
Mon, 1093° / 74°0.01Light rain
93 °Light rain

Anderson, Monday, 10 August

Light rain. High 93°, low 74°.

Pressure29.80 inHg
Wind7.9 mph S
Humidity53%
Visibility6.2 mi
Dew point66°
Tue, 1197° / 76°0Overcast
97 °Overcast

Anderson, Tuesday, 11 August

Overcast. High 97°, low 76°.

Pressure29.71 inHg
Wind6 mph W
Humidity38%
Visibility6.2 mi
Dew point64°
Wed, 1287° / 66°0.27Rain
87 °Rain

Anderson, Wednesday, 12 August

Rain. High 87°, low 66°.

Pressure29.85 inHg
Wind9.2 mph E
Humidity61%
Visibility6.2 mi
Dew point71°
Thu, 1373° / 68°0.43Rain
73 °Rain

Anderson, Thursday, 13 August

Rain. High 73°, low 68°.

Pressure29.88 inHg
Wind16.8 mph E
Humidity98%
Visibility
Dew point67°
Fri, 1475° / 62°0.2Light rain
75 °Light rain

Anderson, Friday, 14 August

Light rain. High 75°, low 62°.

Pressure30.06 inHg
Wind14.4 mph E
Humidity84%
Visibility
Dew point67°
Sat, 1569° / 63°0.2Light rain
69 °Light rain

Anderson, Saturday, 15 August

Light rain. High 69°, low 63°.

Pressure30.12 inHg
Wind9.6 mph E
Humidity98%
Visibility
Dew point68°
Sun, 1681° / 62°0Overcast
81 °Overcast

Anderson, Sunday, 16 August

Overcast. High 81°, low 62°.

Pressure30.09 inHg
Wind6.9 mph E
Humidity71%
Visibility
Dew point66°
Mon, 1785° / 68°0.1Light rain
85 °Light rain

Anderson, Monday, 17 August

Light rain. High 85°, low 68°.

Pressure30.03 inHg
Wind7.3 mph SE
Humidity67%
Visibility
Dew point69°
Tue, 1893° / 69°0.11Light rain
93 °Light rain

Anderson, Tuesday, 18 August

Light rain. High 93°, low 69°.

Pressure29.94 inHg
Wind8.1 mph SE
Humidity61%
Visibility
Dew point70°
Wed, 1982° / 67°0Overcast
82 °Overcast

Anderson, Wednesday, 19 August

Overcast. High 82°, low 67°.

Pressure30.03 inHg
Wind15.9 mph NE
Humidity54%
Visibility
Dew point59°
Thu, 2074° / 58°0Overcast
74 °Overcast

Anderson, Thursday, 20 August

Overcast. High 74°, low 58°.

Pressure30.06 inHg
Wind15.3 mph E
Humidity50%
Visibility
Dew point52°
Fri, 2175° / 55°0Overcast
75 °Overcast

Anderson, Friday, 21 August

Overcast. High 75°, low 55°.

Pressure30.00 inHg
Wind13.3 mph E
Humidity59%
Visibility
Dew point49°
Sat, 2290° / 61°0.03Light rain
90 °Light rain

Anderson, Saturday, 22 August

Light rain. High 90°, low 61°.

Pressure29.85 inHg
Wind7.9 mph SE
Humidity49%
Visibility
Dew point61°
Sun, 2392° / 65°0Overcast
92 °Overcast

Anderson, Sunday, 23 August

Overcast. High 92°, low 65°.

Pressure29.94 inHg
Wind9.9 mph E
Humidity42%
Visibility
Dew point59°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2483° / 67°0.08Climate normal
83 °Climate normal

Anderson, Monday, 24 August

Climate normal for this date — 60-year average.

Average high83°
Average low67°
Average precipitation0.08 in
Chance of precipitation27%
Record high97° (2023)
Record low51° (2015)
Tue, 2584° / 66°0.12Climate normal
84 °Climate normal

Anderson, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high84°
Average low66°
Average precipitation0.12 in
Chance of precipitation27%
Record high99° (2003)
Record low52° (1966)
Wed, 2684° / 67°0.2Climate normal
84 °Climate normal

Anderson, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high84°
Average low67°
Average precipitation0.2 in
Chance of precipitation40%
Record high97° (1976)
Record low53° (2025)
Thu, 2783° / 67°0.11Climate normal
83 °Climate normal

Anderson, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high83°
Average low67°
Average precipitation0.11 in
Chance of precipitation30%
Record high97° (1984)
Record low52° (1967)
Fri, 2883° / 65°0.15Climate normal
83 °Climate normal

Anderson, Friday, 28 August

Climate normal for this date — 60-year average.

Average high83°
Average low65°
Average precipitation0.15 in
Chance of precipitation27%
Record high99° (1984)
Record low46° (1986)
Sat, 2983° / 65°0.07Climate normal
83 °Climate normal

Anderson, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high83°
Average low65°
Average precipitation0.07 in
Chance of precipitation22%
Record high96° (1984)
Record low54° (2004)
Sun, 3083° / 66°0.11Climate normal
83 °Climate normal

Anderson, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high83°
Average low66°
Average precipitation0.11 in
Chance of precipitation28%
Record high99° (2013)
Record low50° (2009)
Mon, 3182° / 65°0.12Climate normal
82 °Climate normal

Anderson, Monday, 31 August

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.12 in
Chance of precipitation30%
Record high96° (1990)
Record low49° (2009)
Tue, 0182° / 65°0.09Climate normal
82 °Climate normal

Anderson, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation27%
Record high96° (1984)
Record low49° (1965)
Wed, 0282° / 65°0.09Climate normal
82 °Climate normal

Anderson, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high82°
Average low65°
Average precipitation0.09 in
Chance of precipitation28%
Record high95° (2000)
Record low53° (1974)
Thu, 0382° / 64°0.1Climate normal
82 °Climate normal

Anderson, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high82°
Average low64°
Average precipitation0.1 in
Chance of precipitation25%
Record high92° (2000)
Record low42° (1974)
Fri, 0481° / 64°0.13Climate normal
81 °Climate normal

Anderson, Friday, 4 September

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.13 in
Chance of precipitation25%
Record high98° (2012)
Record low45° (1974)
Sat, 0581° / 64°0.13Climate normal
81 °Climate normal

Anderson, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high81°
Average low64°
Average precipitation0.13 in
Chance of precipitation25%
Record high94° (1990)
Record low43° (1962)
Sun, 0682° / 63°0.08Climate normal
82 °Climate normal

Anderson, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high82°
Average low63°
Average precipitation0.08 in
Chance of precipitation18%
Record high97° (1970)
Record low47° (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 Anderson, 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 Anderson, 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.