Monthly outlook for Marietta, MN: average high 60.2°, average low 47°. That is 2.9° above the climate normal for October. Precipitation is expected on 7 days (about 1.7 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 22 October (74.4°), the coolest 16 October (38.6°).
60.2°/47°
Average high / low
+2.9°
Above normal
7 / 3
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
63°
56.2°
+3.8°
25 October – 3 November
55.5°
51.5°
+2.2°
4 November – 13 November
at normal
44.9°
—
October records over 66 years
90.9°1 October 2023All-time high
5.5°27 October 2020All-time low
Fri, 1651° / 39°0.02
51 °
Marietta, Friday, 16 October
Light rain. High 51°, low 39°.
Pressure30.62 inHg
Wind15.6 mph NW
Humidity56%
Visibility6.2 mi
Dew point28°
Sat, 1763° / 39°0
63 °
Marietta, Saturday, 17 October
Clear. High 63°, low 39°.
Pressure30.24 inHg
Wind13.5 mph SW
Humidity41%
Visibility6.2 mi
Dew point33°
Sun, 1867° / 46°0
67 °
Marietta, Sunday, 18 October
Clear. High 67°, low 46°.
Pressure30.06 inHg
Wind6.7 mph SW
Humidity47%
Visibility6.2 mi
Dew point40°
Mon, 1963° / 41°0
63 °
Marietta, Monday, 19 October
Mostly clear. High 63°, low 41°.
Pressure30.18 inHg
Wind1.9 mph E
Humidity72%
Visibility6.2 mi
Dew point45°
Tue, 2065° / 43°0
65 °
Marietta, Tuesday, 20 October
Clear. High 65°, low 43°.
Pressure30.18 inHg
Wind7.5 mph E
Humidity66%
Visibility—
Dew point47°
Wed, 2168° / 49°0.17
68 °
Marietta, Wednesday, 21 October
Light rain. High 68°, low 49°.
Pressure30.06 inHg
Wind17.8 mph S
Humidity60%
Visibility—
Dew point51°
Thu, 2274° / 62°0
74 °
Marietta, Thursday, 22 October
Overcast. High 74°, low 62°.
Pressure29.88 inHg
Wind14 mph S
Humidity65%
Visibility—
Dew point57°
Fri, 2367° / 61°0.64
67 °
Marietta, Friday, 23 October
Rain. High 67°, low 61°.
Pressure29.80 inHg
Wind21.7 mph S
Humidity80%
Visibility—
Dew point57°
Sat, 2462° / 49°0.09
62 °
Marietta, Saturday, 24 October
Light rain. High 62°, low 49°.
Pressure30.06 inHg
Wind21.5 mph S
Humidity52%
Visibility—
Dew point39°
Sun, 2557° / 42°0
57 °
Marietta, Sunday, 25 October
Partly cloudy. High 57°, low 42°.
Pressure30.53 inHg
Wind12.3 mph SE
Humidity49%
Visibility—
Dew point34°
Mon, 2656° / 47°0.02
56 °
Marietta, Monday, 26 October
Light rain. High 56°, low 47°.
Pressure30.18 inHg
Wind17.1 mph S
Humidity59%
Visibility—
Dew point39°
Tue, 2754° / 53°0.17
54 °
Marietta, Tuesday, 27 October
Light rain. High 54°, low 53°.
Pressure29.97 inHg
Wind15.5 mph E
Humidity88%
Visibility—
Dew point51°
Wed, 2861° / 51°0.3
61 °
Marietta, Wednesday, 28 October
Rain. High 61°, low 51°.
Pressure29.68 inHg
Wind23.1 mph SE
Humidity47%
Visibility—
Dew point38°
Thu, 2959° / 47°0
59 °
Marietta, Thursday, 29 October
Clear. High 59°, low 47°.
Pressure29.77 inHg
Wind15.7 mph W
Humidity42%
Visibility—
Dew point34°
Fri, 3045° / 40°0.25
45 °
Marietta, Friday, 30 October
Rain. High 45°, low 40°.
Pressure29.91 inHg
Wind16.5 mph NW
Humidity83%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3150° / 35°0.09
50 °
Marietta, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.09 in
Chance of precipitation20%
Record high73° (1990)
Record low20° (1993)
Sun, 0149° / 35°0.06
49 °
Marietta, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.06 in
Chance of precipitation20%
Record high71° (1990)
Record low16° (1984)
Mon, 0249° / 34°0.05
49 °
Marietta, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.05 in
Chance of precipitation15%
Record high73° (1978)
Record low11° (1991)
Tue, 0348° / 34°0.05
48 °
Marietta, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.05 in
Chance of precipitation22%
Record high74° (1978)
Record low8° (1991)
Wed, 0448° / 33°0.03
48 °
Marietta, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.03 in
Chance of precipitation10%
Record high74° (2020)
Record low-3° (1991)
Thu, 0549° / 33°0.04
49 °
Marietta, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.04 in
Chance of precipitation17%
Record high71° (2016)
Record low9° (1991)
Fri, 0648° / 33°0.04
48 °
Marietta, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.04 in
Chance of precipitation15%
Record high75° (2020)
Record low-6° (1991)
Sat, 0748° / 31°0.02
48 °
Marietta, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.02 in
Chance of precipitation10%
Record high72° (2020)
Record low-8° (1991)
Sun, 0846° / 32°0.06
46 °
Marietta, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.06 in
Chance of precipitation20%
Record high74° (1999)
Record low1° (2003)
Mon, 0944° / 30°0.1
44 °
Marietta, Monday, 9 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.1 in
Chance of precipitation25%
Record high68° (1999)
Record low13° (2018)
Tue, 1041° / 28°0.09
41 °
Marietta, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.09 in
Chance of precipitation23%
Record high62° (2016)
Record low9° (2008)
Wed, 1141° / 27°0.03
41 °
Marietta, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.03 in
Chance of precipitation22%
Record high65° (2005)
Record low4° (1966)
Thu, 1240° / 27°0.06
40 °
Marietta, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.06 in
Chance of precipitation20%
Record high67° (1999)
Record low1° (1966)
Fri, 1343° / 28°0.04
43 °
Marietta, Friday, 13 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.04 in
Chance of precipitation22%
Record high72° (1999)
Record low-1° (1982)
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, MN 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, MN 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.