Monthly outlook for Marietta, SD: average high 54°, average low 39.5°. That is 2.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 1 November (66.9°), the coolest 14 November (32.8°).
54°/39.5°
Average high / low
+2.1°
Above normal
3 / 3
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
57.1°
51.9°
+2.9°
9 November – 18 November
48.7°
47.4°
+0.7°
19 November – 28 November
at normal
42.6°
—
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).
Sat, 3167° / 50°0
67 °
Marietta, Saturday, 31 October
Mostly clear. High 67°, low 50°.
Pressure29.94 inHg
Wind3.3 mph S
Humidity64%
Visibility6.2 mi
Dew point49°
Sun, 0167° / 46°0.04
67 °
Marietta, Sunday, 1 November
Light rain. High 67°, low 46°.
Pressure29.88 inHg
Wind9.6 mph SE
Humidity53%
Visibility6.2 mi
Dew point45°
Mon, 0253° / 42°0.02
53 °
Marietta, Monday, 2 November
Light rain. High 53°, low 42°.
Pressure29.88 inHg
Wind25.2 mph NW
Humidity67%
Visibility6.2 mi
Dew point38°
Tue, 0357° / 37°0
57 °
Marietta, Tuesday, 3 November
Clear. High 57°, low 37°.
Pressure30.27 inHg
Wind16.3 mph NW
Humidity47%
Visibility—
Dew point31°
Wed, 0463° / 33°0
63 °
Marietta, Wednesday, 4 November
Mostly clear. High 63°, low 33°.
Pressure30.12 inHg
Wind9.5 mph NW
Humidity40%
Visibility—
Dew point29°
Thu, 0555° / 40°0
55 °
Marietta, Thursday, 5 November
Partly cloudy. High 55°, low 40°.
Pressure29.77 inHg
Wind21.1 mph NW
Humidity33%
Visibility—
Dew point22°
Fri, 0656° / 36°0
56 °
Marietta, Friday, 6 November
Partly cloudy. High 56°, low 36°.
Pressure29.88 inHg
Wind16.2 mph E
Humidity37%
Visibility—
Dew point24°
Sat, 0752° / 41°0.54
52 °
Marietta, Saturday, 7 November
Rain. High 52°, low 41°.
Pressure29.88 inHg
Wind17.3 mph NE
Humidity62%
Visibility—
Dew point38°
Sun, 0845° / 40°0.17
45 °
Marietta, Sunday, 8 November
Light rain. High 45°, low 40°.
Pressure30.24 inHg
Wind14.4 mph E
Humidity92%
Visibility—
Dew point41°
Mon, 0940° / 38°0.01
40 °
Marietta, Monday, 9 November
Light rain. High 40°, low 38°.
Pressure30.15 inHg
Wind9.4 mph SE
Humidity95%
Visibility—
Dew point38°
Tue, 1047° / 38°0
47 °
Marietta, Tuesday, 10 November
Partly cloudy. High 47°, low 38°.
Pressure29.97 inHg
Wind14.7 mph SE
Humidity68%
Visibility—
Dew point34°
Wed, 1161° / 37°0
61 °
Marietta, Wednesday, 11 November
Clear. High 61°, low 37°.
Pressure29.68 inHg
Wind10.7 mph S
Humidity41%
Visibility—
Dew point29°
Thu, 1252° / 42°0
52 °
Marietta, Thursday, 12 November
Overcast. High 52°, low 42°.
Pressure29.50 inHg
Wind22 mph NW
Humidity52%
Visibility—
Dew point31°
Fri, 1344° / 37°0
44 °
Marietta, Friday, 13 November
Overcast. High 44°, low 37°.
Pressure29.83 inHg
Wind31 mph NW
Humidity60%
Visibility—
Dew point31°
Sat, 1447° / 33°0
47 °
Marietta, Saturday, 14 November
Overcast. High 47°, low 33°.
Pressure30.15 inHg
Wind19 mph NW
Humidity57%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1547° / 27°0.02
47 °
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°0.02
49 °
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°0.03
46 °
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°0.02
47 °
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°0.02
45 °
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°0.02
45 °
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)
Sat, 2145° / 25°0.03
45 °
Marietta, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high45°
Average low25°
Average precipitation0.03 in
Chance of precipitation12%
Record high69° (2012)
Record low-17° (1977)
Sun, 2245° / 25°0.03
45 °
Marietta, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high45°
Average low25°
Average precipitation0.03 in
Chance of precipitation15%
Record high66° (2006)
Record low-10° (1985)
Mon, 2343° / 24°0.02
43 °
Marietta, Monday, 23 November
Climate normal for this date — 60-year average.
Average high43°
Average low24°
Average precipitation0.02 in
Chance of precipitation12%
Record high65° (2006)
Record low-13° (1985)
Tue, 2444° / 25°0.03
44 °
Marietta, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.03 in
Chance of precipitation17%
Record high68° (1990)
Record low-4° (1993)
Wed, 2543° / 24°0.02
43 °
Marietta, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high43°
Average low24°
Average precipitation0.02 in
Chance of precipitation17%
Record high69° (1990)
Record low-10° (1993)
Thu, 2639° / 24°0.06
39 °
Marietta, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high39°
Average low24°
Average precipitation0.06 in
Chance of precipitation27%
Record high65° (1960)
Record low0° (1985)
Fri, 2739° / 22°0.02
39 °
Marietta, Friday, 27 November
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.02 in
Chance of precipitation10%
Record high71° (2017)
Record low-5° (1985)
Sat, 2839° / 22°0.02
39 °
Marietta, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.02 in
Chance of precipitation12%
Record high61° (2014)
Record low-7° (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.