As of 06:52 CDT

Weather in Marietta, IA

54°Current weather

Marietta, Wednesday, 28 October, 06:52

Overcast. Feels like 53°. High 71°, low 53°.

Pressure30.06 inHg
Wind9.2 mph SE
Humidity87%
Visibility6.2 mi
Dew point50°

Monthly outlook for Marietta, IA: average high 58.2°, average low 46.3°. That is 3.3° above the climate normal for October. Precipitation is expected on 6 days (about 3.4 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 28 October (71.1°), the coolest 7 November (35.4°).

58.2°/46.3°
Average high / low
+3.3°
Above normal
6 / 4
Wet days / normal
3.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
28 October – 6 November61.4°53.9°+4.2°
7 November – 16 November52.8°48.5°+2.4°
17 November – 26 Novemberat normal44.5°—

October records over 66 years

88.7°6 October 1963All-time high
16.7°30 October 1980All-time low

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

Thu, 2963° / 48°0.03Light rain
63 °Light rain

Marietta, Thursday, 29 October

Light rain. High 63°, low 48°.

Pressure30.21 inHg
Wind8.8 mph N
Humidity50%
Visibility6.2 mi
Dew point42°
Fri, 3053° / 46°1.81Heavy rain
53 °Heavy rain

Marietta, Friday, 30 October

Heavy rain. High 53°, low 46°.

Pressure30.27 inHg
Wind8.9 mph E
Humidity92%
Visibility2.2 mi
Dew point48°
Sat, 3169° / 52°0.31Rain
69 °Rain

Marietta, Saturday, 31 October

Rain. High 69°, low 52°.

Pressure30.21 inHg
Wind5.6 mph S
Humidity90%
Visibility4.9 mi
Dew point59°
Sun, 0170° / 52°0.02Light rain
70 °Light rain

Marietta, Sunday, 1 November

Light rain. High 70°, low 52°.

Pressure30.21 inHg
Wind10.6 mph SE
Humidity68%
Visibility—
Dew point56°
Mon, 0269° / 61°0.35Rain
69 °Rain

Marietta, Monday, 2 November

Rain. High 69°, low 61°.

Pressure29.88 inHg
Wind19.1 mph SE
Humidity70%
Visibility—
Dew point58°
Tue, 0360° / 48°0.61Rain
60 °Rain

Marietta, Tuesday, 3 November

Rain. High 60°, low 48°.

Pressure29.68 inHg
Wind22.4 mph E
Humidity96%
Visibility—
Dew point55°
Wed, 0456° / 44°0Overcast
56 °Overcast

Marietta, Wednesday, 4 November

Overcast. High 56°, low 44°.

Pressure29.91 inHg
Wind9.5 mph N
Humidity55%
Visibility—
Dew point38°
Thu, 0553° / 44°0.17Light rain
53 °Light rain

Marietta, Thursday, 5 November

Light rain. High 53°, low 44°.

Pressure29.85 inHg
Wind20.7 mph N
Humidity84%
Visibility—
Dew point47°
Fri, 0649° / 36°0Clear
49 °Clear

Marietta, Friday, 6 November

Clear. High 49°, low 36°.

Pressure30.24 inHg
Wind13.6 mph N
Humidity55%
Visibility—
Dew point30°
Sat, 0750° / 35°0Overcast
50 °Overcast

Marietta, Saturday, 7 November

Overcast. High 50°, low 35°.

Pressure30.24 inHg
Wind9.1 mph S
Humidity56%
Visibility—
Dew point31°
Sun, 0854° / 37°0Partly cloudy
54 °Partly cloudy

Marietta, Sunday, 8 November

Partly cloudy. High 54°, low 37°.

Pressure30.18 inHg
Wind10.9 mph S
Humidity64%
Visibility—
Dew point34°
Mon, 0960° / 48°0.01Light rain
60 °Light rain

Marietta, Monday, 9 November

Light rain. High 60°, low 48°.

Pressure30.03 inHg
Wind16.6 mph SW
Humidity73%
Visibility—
Dew point50°
Tue, 1054° / 51°0Light rain
54 °Light rain

Marietta, Tuesday, 10 November

Light rain. High 54°, low 51°.

Pressure29.80 inHg
Wind15.9 mph S
Humidity84%
Visibility—
Dew point49°
Wed, 1149° / 44°0Overcast
49 °Overcast

Marietta, Wednesday, 11 November

Overcast. High 49°, low 44°.

Pressure29.74 inHg
Wind12.9 mph NW
Humidity52%
Visibility—
Dew point32°
Thu, 1249° / 41°0.03Light rain
49 °Light rain

Marietta, Thursday, 12 November

Light rain. High 49°, low 41°.

Pressure29.44 inHg
Wind19.7 mph NW
Humidity66%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1347° / 31°0.07Climate normal
47 °Climate normal

Marietta, Friday, 13 November

Climate normal for this date — 60-year average.

Average high47°
Average low31°
Average precipitation0.07 in
Chance of precipitation28%
Record high75° (1999)
Record low6° (1986)
Sat, 1447° / 32°0.03Climate normal
47 °Climate normal

Marietta, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high47°
Average low32°
Average precipitation0.03 in
Chance of precipitation20%
Record high71° (1964)
Record low15° (1986)
Sun, 1547° / 32°0.06Climate normal
47 °Climate normal

Marietta, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°
Average low32°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2001)
Record low4° (1972)
Mon, 1648° / 32°0.04Climate normal
48 °Climate normal

Marietta, Monday, 16 November

Climate normal for this date — 60-year average.

Average high48°
Average low32°
Average precipitation0.04 in
Chance of precipitation25%
Record high69° (2001)
Record low13° (1997)
Tue, 1748° / 33°0.1Climate normal
48 °Climate normal

Marietta, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high48°
Average low33°
Average precipitation0.1 in
Chance of precipitation28%
Record high72° (2016)
Record low11° (2005)
Wed, 1847° / 33°0.06Climate normal
47 °Climate normal

Marietta, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.06 in
Chance of precipitation22%
Record high72° (1999)
Record low9° (2014)
Thu, 1947° / 32°0.07Climate normal
47 °Climate normal

Marietta, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high47°
Average low32°
Average precipitation0.07 in
Chance of precipitation27%
Record high66° (2020)
Record low15° (1972)
Fri, 2044° / 31°0.08Climate normal
44 °Climate normal

Marietta, Friday, 20 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.08 in
Chance of precipitation28%
Record high65° (2003)
Record low11° (1964)
Sat, 2144° / 28°0.06Climate normal
44 °Climate normal

Marietta, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high44°
Average low28°
Average precipitation0.06 in
Chance of precipitation22%
Record high71° (1990)
Record low6° (1964)
Sun, 2244° / 29°0.02Climate normal
44 °Climate normal

Marietta, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high44°
Average low29°
Average precipitation0.02 in
Chance of precipitation18%
Record high68° (1966)
Record low4° (2015)
Mon, 2343° / 29°0.09Climate normal
43 °Climate normal

Marietta, Monday, 23 November

Climate normal for this date — 60-year average.

Average high43°
Average low29°
Average precipitation0.09 in
Chance of precipitation28%
Record high66° (1966)
Record low8° (1970)
Tue, 2443° / 28°0.04Climate normal
43 °Climate normal

Marietta, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high43°
Average low28°
Average precipitation0.04 in
Chance of precipitation18%
Record high64° (2017)
Record low6° (1985)
Wed, 2542° / 28°0.05Climate normal
42 °Climate normal

Marietta, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high42°
Average low28°
Average precipitation0.05 in
Chance of precipitation25%
Record high59° (1960)
Record low-5° (1991)
Thu, 2642° / 27°0.09Climate normal
42 °Climate normal

Marietta, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high42°
Average low27°
Average precipitation0.09 in
Chance of precipitation32%
Record high67° (1990)
Record low-8° (1977)

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 Marietta, 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 Marietta, 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.