As of 21:46 MDT

Weather in Marietta, SD

61°Current weather

Marietta, Thursday, 22 October, 21:46

Overcast. Feels like 60°. High 77°, low 54°.

Pressure29.85 inHg
Wind4.1 mph E
Humidity61%
Visibility6.2 mi
Dew point48°

Monthly outlook for Marietta, SD: average high 55.5°, average low 39.3°. That is 0.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (77.5°), the coolest 3 November (28.9°).

55.5°/39.3°
Average high / low
+0.4°
Above normal
3 / 3
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
22 October – 31 October54.9°56.5°-0.9°
1 November – 10 November56.7°50.8°+3.3°
11 November – 20 Novemberat normal46.9°—

October records over 66 years

91.2°4 October 1963All-time high
-6.7°31 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Dudley (8 mi).

Fri, 2378° / 54°0Mostly clear
78 °Mostly clear

Marietta, Friday, 23 October

Mostly clear. High 78°, low 54°.

Pressure29.68 inHg
Wind7 mph NW
Humidity39%
Visibility6.2 mi
Dew point46°
Sat, 2453° / 40°0Overcast
53 °Overcast

Marietta, Saturday, 24 October

Overcast. High 53°, low 40°.

Pressure30.42 inHg
Wind12 mph NW
Humidity58%
Visibility6.2 mi
Dew point28°
Sun, 2548° / 41°0Overcast
48 °Overcast

Marietta, Sunday, 25 October

Overcast. High 48°, low 41°.

Pressure30.33 inHg
Wind12.9 mph E
Humidity56%
Visibility6.2 mi
Dew point28°
Mon, 2642° / 37°0.31Light rain
42 °Light rain

Marietta, Monday, 26 October

Light rain. High 42°, low 37°.

Pressure30.33 inHg
Wind7.2 mph SE
Humidity93%
Visibility2.6 mi
Dew point39°
Tue, 2761° / 36°0.04Light rain
61 °Light rain

Marietta, Tuesday, 27 October

Light rain. High 61°, low 36°.

Pressure30.00 inHg
Wind10.6 mph E
Humidity63%
Visibility—
Dew point37°
Wed, 2848° / 37°0.03Light rain
48 °Light rain

Marietta, Wednesday, 28 October

Light rain. High 48°, low 37°.

Pressure30.06 inHg
Wind25.5 mph NW
Humidity63%
Visibility—
Dew point33°
Thu, 2946° / 33°0Overcast
46 °Overcast

Marietta, Thursday, 29 October

Overcast. High 46°, low 33°.

Pressure30.24 inHg
Wind19.7 mph E
Humidity57%
Visibility—
Dew point26°
Fri, 3044° / 40°0.04Light rain
44 °Light rain

Marietta, Friday, 30 October

Light rain. High 44°, low 40°.

Pressure29.88 inHg
Wind20.7 mph E
Humidity81%
Visibility—
Dew point37°
Sat, 3153° / 38°0Partly cloudy
53 °Partly cloudy

Marietta, Saturday, 31 October

Partly cloudy. High 53°, low 38°.

Pressure29.85 inHg
Wind21.1 mph W
Humidity60%
Visibility—
Dew point31°
Sun, 0149° / 34°0Partly cloudy
49 °Partly cloudy

Marietta, Sunday, 1 November

Partly cloudy. High 49°, low 34°.

Pressure30.00 inHg
Wind17.3 mph NW
Humidity29%
Visibility—
Dew point15°
Mon, 0248° / 33°0Overcast
48 °Overcast

Marietta, Monday, 2 November

Overcast. High 48°, low 33°.

Pressure30.33 inHg
Wind22.1 mph NW
Humidity38%
Visibility—
Dew point20°
Tue, 0352° / 29°0Clear
52 °Clear

Marietta, Tuesday, 3 November

Clear. High 52°, low 29°.

Pressure30.50 inHg
Wind17.8 mph NW
Humidity39%
Visibility—
Dew point20°
Wed, 0456° / 33°0Overcast
56 °Overcast

Marietta, Wednesday, 4 November

Overcast. High 56°, low 33°.

Pressure30.33 inHg
Wind10.6 mph NW
Humidity24%
Visibility—
Dew point13°
Thu, 0566° / 42°0Partly cloudy
66 °Partly cloudy

Marietta, Thursday, 5 November

Partly cloudy. High 66°, low 42°.

Pressure30.15 inHg
Wind10.2 mph W
Humidity17%
Visibility—
Dew point13°
Fri, 0669° / 48°0Clear
69 °Clear

Marietta, Friday, 6 November

Clear. High 69°, low 48°.

Pressure29.94 inHg
Wind9.8 mph NW
Humidity16%
Visibility—
Dew point15°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0751° / 30°0.03Climate normal
51 °Climate normal

Marietta, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high51°
Average low30°
Average precipitation0.03 in
Chance of precipitation13%
Record high74° (2006)
Record low-7° (2003)
Sun, 0850° / 30°0.06Climate normal
50 °Climate normal

Marietta, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high50°
Average low30°
Average precipitation0.06 in
Chance of precipitation20%
Record high78° (1999)
Record low2° (2003)
Mon, 0947° / 29°0.04Climate normal
47 °Climate normal

Marietta, Monday, 9 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.04 in
Chance of precipitation23%
Record high69° (2016)
Record low6° (2003)
Tue, 1047° / 28°0.03Climate normal
47 °Climate normal

Marietta, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high47°
Average low28°
Average precipitation0.03 in
Chance of precipitation20%
Record high68° (2007)
Record low-12° (1986)
Wed, 1146° / 27°0.03Climate normal
46 °Climate normal

Marietta, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high46°
Average low27°
Average precipitation0.03 in
Chance of precipitation18%
Record high71° (2005)
Record low-17° (1986)
Thu, 1248° / 28°0.03Climate normal
48 °Climate normal

Marietta, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high48°
Average low28°
Average precipitation0.03 in
Chance of precipitation12%
Record high72° (1999)
Record low-9° (1986)
Fri, 1349° / 29°0.04Climate normal
49 °Climate normal

Marietta, Friday, 13 November

Climate normal for this date — 60-year average.

Average high49°
Average low29°
Average precipitation0.04 in
Chance of precipitation22%
Record high73° (1999)
Record low-14° (1986)
Sat, 1448° / 29°0.02Climate normal
48 °Climate normal

Marietta, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.02 in
Chance of precipitation12%
Record high74° (2025)
Record low5° (2000)
Sun, 1547° / 27°0.02Climate normal
47 °Climate normal

Marietta, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°
Average low27°
Average precipitation0.02 in
Chance of precipitation13%
Record high68° (1999)
Record low1° (2014)
Mon, 1649° / 28°0.02Climate normal
49 °Climate normal

Marietta, Monday, 16 November

Climate normal for this date — 60-year average.

Average high49°
Average low28°
Average precipitation0.02 in
Chance of precipitation7%
Record high67° (1999)
Record low-2° (2014)
Tue, 1746° / 28°0.03Climate normal
46 °Climate normal

Marietta, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high46°
Average low28°
Average precipitation0.03 in
Chance of precipitation17%
Record high68° (1999)
Record low3° (2000)
Wed, 1847° / 28°0.02Climate normal
47 °Climate normal

Marietta, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high47°
Average low28°
Average precipitation0.02 in
Chance of precipitation15%
Record high71° (2008)
Record low6° (2022)
Thu, 1945° / 28°0.02Climate normal
45 °Climate normal

Marietta, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation8%
Record high74° (2007)
Record low0° (1985)
Fri, 2045° / 26°0.02Climate normal
45 °Climate normal

Marietta, Friday, 20 November

Climate normal for this date — 60-year average.

Average high45°
Average low26°
Average precipitation0.02 in
Chance of precipitation10%
Record high65° (2012)
Record low-8° (1985)

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, SD 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, SD 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.