Monthly outlook for Grimms, WI: average high 63.1°, average low 46.6°. That is 3.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 15 October (80.4°), the coolest 18 October (33.5°).
63.1°/46.6°
Average high / low
+3.4°
Above normal
4 / 5
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
68.4°
58.2°
+5.7°
17 October – 26 October
54.3°
54.2°
+0°
27 October – 5 November
at normal
50.5°
—
October records over 66 years
82.2°3 October 2025All-time high
25.7°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Manitowoc (11 mi).
Thu, 0865° / 48°0
65 °
Grimms, Thursday, 8 October
Overcast. High 65°, low 48°.
Pressure30.03 inHg
Wind12.9 mph NW
Humidity47%
Visibility6.2 mi
Dew point40°
Fri, 0966° / 51°0
66 °
Grimms, Friday, 9 October
Overcast. High 66°, low 51°.
Pressure30.15 inHg
Wind4.5 mph E
Humidity55%
Visibility6.2 mi
Dew point46°
Sat, 1079° / 56°0.05
79 °
Grimms, Saturday, 10 October
Light rain. High 79°, low 56°.
Pressure30.03 inHg
Wind11.9 mph S
Humidity57%
Visibility6.2 mi
Dew point59°
Sun, 1175° / 58°0
75 °
Grimms, Sunday, 11 October
Clear. High 75°, low 58°.
Pressure29.97 inHg
Wind8.8 mph S
Humidity58%
Visibility6.2 mi
Dew point57°
Mon, 1274° / 57°0.17
74 °
Grimms, Monday, 12 October
Rain. High 74°, low 57°.
Pressure29.74 inHg
Wind10 mph SW
Humidity64%
Visibility—
Dew point57°
Tue, 1355° / 40°0.01
55 °
Grimms, Tuesday, 13 October
Light rain. High 55°, low 40°.
Pressure30.03 inHg
Wind14.1 mph NW
Humidity53%
Visibility—
Dew point36°
Wed, 1459° / 37°0.19
59 °
Grimms, Wednesday, 14 October
Rain. High 59°, low 37°.
Pressure30.09 inHg
Wind18 mph SE
Humidity50%
Visibility—
Dew point37°
Thu, 1580° / 55°0.08
80 °
Grimms, Thursday, 15 October
Light rain. High 80°, low 55°.
Pressure29.62 inHg
Wind22.8 mph SW
Humidity63%
Visibility—
Dew point63°
Fri, 1658° / 47°0
58 °
Grimms, Friday, 16 October
Clear. High 58°, low 47°.
Pressure30.24 inHg
Wind18.8 mph NW
Humidity51%
Visibility—
Dew point39°
Sat, 1749° / 37°0
49 °
Grimms, Saturday, 17 October
Overcast. High 49°, low 37°.
Pressure30.30 inHg
Wind14.1 mph NW
Humidity49%
Visibility—
Dew point27°
Sun, 1852° / 34°0
52 °
Grimms, Sunday, 18 October
Clear. High 52°, low 34°.
Pressure30.42 inHg
Wind8.8 mph N
Humidity45%
Visibility—
Dew point28°
Mon, 1956° / 39°0.01
56 °
Grimms, Monday, 19 October
Light rain. High 56°, low 39°.
Pressure30.47 inHg
Wind17.5 mph S
Humidity55%
Visibility—
Dew point38°
Tue, 2059° / 47°0.02
59 °
Grimms, Tuesday, 20 October
Light rain. High 59°, low 47°.
Pressure30.24 inHg
Wind13.7 mph S
Humidity67%
Visibility—
Dew point40°
Wed, 2159° / 44°0
59 °
Grimms, Wednesday, 21 October
Partly cloudy. High 59°, low 44°.
Pressure30.09 inHg
Wind9.7 mph N
Humidity53%
Visibility—
Dew point40°
Thu, 2251° / 42°0.02
51 °
Grimms, Thursday, 22 October
Light rain. High 51°, low 42°.
Pressure29.85 inHg
Wind10.6 mph NE
Humidity83%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2354° / 44°0.13
54 °
Grimms, Friday, 23 October
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.13 in
Chance of precipitation38%
Record high74° (1963)
Record low29° (1969)
Sat, 2454° / 44°0.1
54 °
Grimms, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high54°
Average low44°
Average precipitation0.1 in
Chance of precipitation38%
Record high71° (1963)
Record low29° (1981)
Sun, 2553° / 43°0.06
53 °
Grimms, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.06 in
Chance of precipitation28%
Record high68° (2023)
Record low31° (1962)
Mon, 2652° / 43°0.08
52 °
Grimms, Monday, 26 October
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.08 in
Chance of precipitation23%
Record high71° (1963)
Record low28° (1962)
Tue, 2753° / 43°0.09
53 °
Grimms, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low43°
Average precipitation0.09 in
Chance of precipitation23%
Record high70° (2023)
Record low26° (2020)
Wed, 2851° / 42°0.07
51 °
Grimms, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.07 in
Chance of precipitation28%
Record high64° (1986)
Record low30° (1967)
Thu, 2951° / 42°0.05
51 °
Grimms, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.05 in
Chance of precipitation22%
Record high78° (2024)
Record low27° (1988)
Fri, 3052° / 43°0.08
52 °
Grimms, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low43°
Average precipitation0.08 in
Chance of precipitation27%
Record high76° (2024)
Record low26° (1988)
Sat, 3151° / 42°0.12
51 °
Grimms, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.12 in
Chance of precipitation38%
Record high66° (1971)
Record low29° (1996)
Sun, 0150° / 41°0.16
50 °
Grimms, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.16 in
Chance of precipitation35%
Record high66° (1999)
Record low25° (2019)
Mon, 0250° / 40°0.13
50 °
Grimms, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low40°
Average precipitation0.13 in
Chance of precipitation33%
Record high67° (1990)
Record low22° (1991)
Tue, 0349° / 39°0.06
49 °
Grimms, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low39°
Average precipitation0.06 in
Chance of precipitation27%
Record high65° (1987)
Record low19° (1991)
Wed, 0448° / 40°0.08
48 °
Grimms, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low40°
Average precipitation0.08 in
Chance of precipitation27%
Record high67° (2008)
Record low19° (1991)
Thu, 0549° / 40°0.09
49 °
Grimms, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low40°
Average precipitation0.09 in
Chance of precipitation28%
Record high66° (2020)
Record low22° (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 Grimms, 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 Grimms, 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.