Monthly outlook for Marion, WI: average high 64.1°, average low 43.7°. That is 4.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 12 October (80.1°), the coolest 18 October (31.1°).
64.1°/43.7°
Average high / low
+4.3°
Above normal
3 / 5
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
64.8°
57.6°
+4°
19 October – 28 October
63°
53.5°
+5.3°
29 October – 7 November
at normal
49.1°
—
October records over 66 years
85.3°3 October 2025All-time high
21°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Manawa (15 mi).
Sat, 1080° / 49°0
80 °
Marion, Saturday, 10 October
Clear. High 80°, low 49°.
Pressure29.97 inHg
Wind8.9 mph S
Humidity54%
Visibility6.2 mi
Dew point56°
Sun, 1177° / 54°0
77 °
Marion, Sunday, 11 October
Clear. High 77°, low 54°.
Pressure29.88 inHg
Wind7.5 mph S
Humidity52%
Visibility6.2 mi
Dew point53°
Mon, 1280° / 57°0.04
80 °
Marion, Monday, 12 October
Light rain. High 80°, low 57°.
Pressure29.71 inHg
Wind3.7 mph W
Humidity57%
Visibility6.2 mi
Dew point60°
Tue, 1359° / 51°0.06
59 °
Marion, Tuesday, 13 October
Light rain. High 59°, low 51°.
Pressure29.91 inHg
Wind8.8 mph NE
Humidity71%
Visibility—
Dew point47°
Wed, 1460° / 50°0.01
60 °
Marion, Wednesday, 14 October
Light rain. High 60°, low 50°.
Pressure30.00 inHg
Wind10.2 mph E
Humidity64%
Visibility—
Dew point46°
Thu, 1565° / 50°0.27
65 °
Marion, Thursday, 15 October
Light rain. High 65°, low 50°.
Pressure29.80 inHg
Wind19.1 mph SW
Humidity95%
Visibility—
Dew point52°
Fri, 1659° / 38°0.02
59 °
Marion, Friday, 16 October
Light rain. High 59°, low 38°.
Pressure29.65 inHg
Wind25.5 mph W
Humidity56%
Visibility—
Dew point31°
Sat, 1746° / 35°0
46 °
Marion, Saturday, 17 October
Light rain. High 46°, low 35°.
Pressure30.27 inHg
Wind15.2 mph NW
Humidity49%
Visibility—
Dew point26°
Sun, 1854° / 31°0
54 °
Marion, Sunday, 18 October
Overcast. High 54°, low 31°.
Pressure30.24 inHg
Wind13 mph SW
Humidity39%
Visibility—
Dew point25°
Mon, 1959° / 39°0
59 °
Marion, Monday, 19 October
Overcast. High 59°, low 39°.
Pressure30.33 inHg
Wind6.4 mph SW
Humidity49%
Visibility—
Dew point35°
Tue, 2063° / 40°0
63 °
Marion, Tuesday, 20 October
Clear. High 63°, low 40°.
Pressure30.36 inHg
Wind10.7 mph S
Humidity39%
Visibility—
Dew point33°
Wed, 2165° / 40°0
65 °
Marion, Wednesday, 21 October
Clear. High 65°, low 40°.
Pressure30.27 inHg
Wind9.4 mph S
Humidity37%
Visibility—
Dew point34°
Thu, 2266° / 43°0
66 °
Marion, Thursday, 22 October
Clear. High 66°, low 43°.
Pressure30.27 inHg
Wind3.8 mph W
Humidity41%
Visibility—
Dew point38°
Fri, 2364° / 43°0
64 °
Marion, Friday, 23 October
Overcast. High 64°, low 43°.
Pressure30.24 inHg
Wind5.1 mph E
Humidity46%
Visibility—
Dew point39°
Sat, 2462° / 42°0
62 °
Marion, Saturday, 24 October
Partly cloudy. High 62°, low 42°.
Pressure30.15 inHg
Wind5.7 mph SE
Humidity55%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2553° / 39°0.07
53 °
Marion, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.07 in
Chance of precipitation27%
Record high74° (1989)
Record low26° (2020)
Mon, 2652° / 39°0.07
52 °
Marion, Monday, 26 October
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.07 in
Chance of precipitation18%
Record high73° (1989)
Record low23° (1962)
Tue, 2753° / 38°0.06
53 °
Marion, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation20%
Record high70° (1989)
Record low22° (2020)
Wed, 2851° / 38°0.08
51 °
Marion, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.08 in
Chance of precipitation23%
Record high68° (1974)
Record low24° (1967)
Thu, 2951° / 37°0.06
51 °
Marion, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.06 in
Chance of precipitation25%
Record high80° (2024)
Record low24° (1988)
Fri, 3053° / 38°0.09
53 °
Marion, Friday, 30 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.09 in
Chance of precipitation27%
Record high78° (2024)
Record low21° (1988)
Sat, 3151° / 38°0.1
51 °
Marion, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.1 in
Chance of precipitation38%
Record high67° (1971)
Record low26° (1996)
Sun, 0150° / 37°0.17
50 °
Marion, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.17 in
Chance of precipitation33%
Record high69° (1990)
Record low21° (2023)
Mon, 0249° / 36°0.1
49 °
Marion, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.1 in
Chance of precipitation25%
Record high69° (2022)
Record low18° (1991)
Tue, 0348° / 35°0.06
48 °
Marion, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.06 in
Chance of precipitation18%
Record high70° (2022)
Record low16° (1991)
Wed, 0448° / 35°0.08
48 °
Marion, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.08 in
Chance of precipitation23%
Record high71° (2008)
Record low15° (1991)
Thu, 0548° / 35°0.09
48 °
Marion, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation30%
Record high67° (1975)
Record low17° (1991)
Fri, 0647° / 34°0.07
47 °
Marion, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation30%
Record high69° (2020)
Record low12° (1991)
Sat, 0746° / 33°0.04
46 °
Marion, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.04 in
Chance of precipitation18%
Record high69° (2020)
Record low7° (1991)
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 Marion, WI 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 Marion, WI 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.