Monthly outlook for Grand Marsh, WI: average high 58.2°, average low 46.8°. That is 6.1° above the climate normal for October. Precipitation is expected on 8 days (about 1.8 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 1 November (66.6°), the coolest 7 November (38.5°).
58.2°/46.8°
Average high / low
+6.1°
Above normal
8 / 5
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
58.1°
49.4°
+4.8°
9 November – 18 November
58.4°
43.6°
+8.2°
19 November – 28 November
at normal
39.1°
—
October records over 66 years
85.5°3 October 2025All-time high
19.8°30 October 1988All-time low
Climate normals and records are computed from the nearest reference point — Harrisville (15 mi).
Sat, 3161° / 49°0.04
61 °
Grand Marsh, Saturday, 31 October
Light rain. High 61°, low 49°.
Pressure30.30 inHg
Wind7.8 mph SE
Humidity68%
Visibility6.2 mi
Dew point47°
Sun, 0167° / 46°0
67 °
Grand Marsh, Sunday, 1 November
Overcast. High 67°, low 46°.
Pressure30.27 inHg
Wind5.7 mph SE
Humidity64%
Visibility6.2 mi
Dew point50°
Mon, 0259° / 55°0.44
59 °
Grand Marsh, Monday, 2 November
Rain. High 59°, low 55°.
Pressure30.00 inHg
Wind10.5 mph SE
Humidity88%
Visibility4.0 mi
Dew point55°
Tue, 0366° / 56°0.45
66 °
Grand Marsh, Tuesday, 3 November
Rain. High 66°, low 56°.
Pressure29.65 inHg
Wind15.2 mph S
Humidity94%
Visibility—
Dew point63°
Wed, 0456° / 52°0.28
56 °
Grand Marsh, Wednesday, 4 November
Rain. High 56°, low 52°.
Pressure29.71 inHg
Wind8.9 mph N
Humidity90%
Visibility—
Dew point53°
Thu, 0559° / 47°0
59 °
Grand Marsh, Thursday, 5 November
Overcast. High 59°, low 47°.
Pressure29.80 inHg
Wind9.6 mph NE
Humidity64%
Visibility—
Dew point45°
Fri, 0651° / 39°0
51 °
Grand Marsh, Friday, 6 November
Partly cloudy. High 51°, low 39°.
Pressure30.12 inHg
Wind6.5 mph N
Humidity46%
Visibility—
Dew point29°
Sat, 0748° / 39°0.01
48 °
Grand Marsh, Saturday, 7 November
Light rain. High 48°, low 39°.
Pressure30.21 inHg
Wind10.2 mph S
Humidity63%
Visibility—
Dew point35°
Sun, 0858° / 45°0.02
58 °
Grand Marsh, Sunday, 8 November
Light rain. High 58°, low 45°.
Pressure30.15 inHg
Wind10.8 mph NW
Humidity61%
Visibility—
Dew point42°
Mon, 0962° / 43°0
62 °
Grand Marsh, Monday, 9 November
Clear. High 62°, low 43°.
Pressure30.09 inHg
Wind7.7 mph W
Humidity39%
Visibility—
Dew point33°
Tue, 1059° / 44°0.05
59 °
Grand Marsh, Tuesday, 10 November
Light rain. High 59°, low 44°.
Pressure29.91 inHg
Wind10.8 mph S
Humidity49%
Visibility—
Dew point38°
Wed, 1156° / 50°0.2
56 °
Grand Marsh, Wednesday, 11 November
Rain. High 56°, low 50°.
Pressure29.59 inHg
Wind15.2 mph SE
Humidity69%
Visibility—
Dew point45°
Thu, 1258° / 49°0.05
58 °
Grand Marsh, Thursday, 12 November
Light rain. High 58°, low 49°.
Pressure29.38 inHg
Wind13.2 mph S
Humidity54%
Visibility—
Dew point40°
Fri, 1357° / 44°0.02
57 °
Grand Marsh, Friday, 13 November
Light rain. High 57°, low 44°.
Pressure29.91 inHg
Wind17.2 mph E
Humidity52%
Visibility—
Dew point38°
Sat, 1458° / 52°0.19
58 °
Grand Marsh, Saturday, 14 November
Light rain. High 58°, low 52°.
Pressure29.88 inHg
Wind19.6 mph SE
Humidity55%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1544° / 31°0.05
44 °
Grand Marsh, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.05 in
Chance of precipitation20%
Record high66° (2001)
Record low18° (1982)
Mon, 1643° / 30°0.06
43 °
Grand Marsh, Monday, 16 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.06 in
Chance of precipitation23%
Record high61° (2023)
Record low18° (1989)
Tue, 1744° / 31°0.08
44 °
Grand Marsh, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.08 in
Chance of precipitation28%
Record high67° (2016)
Record low9° (2005)
Wed, 1843° / 30°0.07
43 °
Grand Marsh, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.07 in
Chance of precipitation25%
Record high63° (2001)
Record low9° (2014)
Thu, 1942° / 30°0.07
42 °
Grand Marsh, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.07 in
Chance of precipitation23%
Record high62° (1975)
Record low10° (2014)
Fri, 2041° / 29°0.09
41 °
Grand Marsh, Friday, 20 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.09 in
Chance of precipitation28%
Record high61° (1982)
Record low8° (2022)
Sat, 2140° / 28°0.09
40 °
Grand Marsh, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.09 in
Chance of precipitation23%
Record high64° (1990)
Record low0° (2014)
Sun, 2240° / 27°0.02
40 °
Grand Marsh, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.02 in
Chance of precipitation17%
Record high60° (2012)
Record low10° (1964)
Mon, 2340° / 28°0.11
40 °
Grand Marsh, Monday, 23 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.11 in
Chance of precipitation32%
Record high60° (1983)
Record low10° (1970)
Tue, 2439° / 27°0.06
39 °
Grand Marsh, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.06 in
Chance of precipitation27%
Record high58° (2017)
Record low5° (1985)
Wed, 2539° / 27°0.05
39 °
Grand Marsh, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.05 in
Chance of precipitation30%
Record high54° (2011)
Record low8° (1977)
Thu, 2638° / 26°0.11
38 °
Grand Marsh, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.11 in
Chance of precipitation33%
Record high58° (1984)
Record low-2° (1977)
Fri, 2736° / 24°0.12
36 °
Grand Marsh, Friday, 27 November
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.12 in
Chance of precipitation45%
Record high61° (1990)
Record low0° (1996)
Sat, 2836° / 24°0.08
36 °
Grand Marsh, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.08 in
Chance of precipitation22%
Record high59° (1998)
Record low4° (2014)
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 Grand Marsh, 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 Grand Marsh, 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.