Monthly outlook for Grass Lake, MN: average high 50.3°, average low 37.9°. That is 3° above the climate normal for October. Precipitation is expected on 5 days (about 2.8 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 28 October (66.4°), the coolest 11 November (26.2°).
50.3°/37.9°
Average high / low
+3°
Above normal
5 / 4
Wet days / normal
2.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
55.2°
46.9°
+4.6°
7 November – 16 November
42.1°
40.7°
+0.8°
17 November – 26 November
at normal
35.7°
—
October records over 66 years
86.5°4 October 2025All-time high
16.2°23 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Braham (4 mi).
Thu, 2953° / 42°0
53 °
Grass Lake, Thursday, 29 October
Clear. High 53°, low 42°.
Pressure30.18 inHg
Wind11.1 mph NW
Humidity57%
Visibility6.2 mi
Dew point34°
Fri, 3053° / 36°0
53 °
Grass Lake, Friday, 30 October
Overcast. High 53°, low 36°.
Pressure30.36 inHg
Wind3.2 mph E
Humidity58%
Visibility6.2 mi
Dew point35°
Sat, 3159° / 36°0.04
59 °
Grass Lake, Saturday, 31 October
Light rain. High 59°, low 36°.
Pressure30.33 inHg
Wind5 mph E
Humidity65%
Visibility6.2 mi
Dew point41°
Sun, 0164° / 51°0
64 °
Grass Lake, Sunday, 1 November
Overcast. High 64°, low 51°.
Pressure30.24 inHg
Wind7.9 mph S
Humidity81%
Visibility6.2 mi
Dew point53°
Mon, 0260° / 55°1.36
60 °
Grass Lake, Monday, 2 November
Heavy rain. High 60°, low 55°.
Pressure29.88 inHg
Wind13 mph E
Humidity87%
Visibility—
Dew point55°
Tue, 0358° / 50°0.44
58 °
Grass Lake, Tuesday, 3 November
Rain. High 58°, low 50°.
Pressure30.03 inHg
Wind18.5 mph N
Humidity70%
Visibility—
Dew point46°
Wed, 0451° / 50°0.63
51 °
Grass Lake, Wednesday, 4 November
Rain. High 51°, low 50°.
Pressure29.85 inHg
Wind11.6 mph NE
Humidity97%
Visibility—
Dew point50°
Thu, 0549° / 36°0.02
49 °
Grass Lake, Thursday, 5 November
Light rain. High 49°, low 36°.
Pressure29.71 inHg
Wind16.7 mph NW
Humidity58%
Visibility—
Dew point31°
Fri, 0638° / 32°0
38 °
Grass Lake, Friday, 6 November
Overcast. High 38°, low 32°.
Pressure29.80 inHg
Wind15.9 mph NW
Humidity53%
Visibility—
Dew point22°
Sat, 0742° / 28°0
42 °
Grass Lake, Saturday, 7 November
Clear. High 42°, low 28°.
Pressure30.06 inHg
Wind10.8 mph NW
Humidity42%
Visibility—
Dew point17°
Sun, 0844° / 27°0
44 °
Grass Lake, Sunday, 8 November
Clear. High 44°, low 27°.
Pressure30.18 inHg
Wind3.6 mph N
Humidity39%
Visibility—
Dew point17°
Mon, 0949° / 31°0
49 °
Grass Lake, Monday, 9 November
Partly cloudy. High 49°, low 31°.
Pressure29.97 inHg
Wind8.3 mph W
Humidity47%
Visibility—
Dew point25°
Tue, 1039° / 29°0
39 °
Grass Lake, Tuesday, 10 November
Overcast. High 39°, low 29°.
Pressure29.91 inHg
Wind11.5 mph N
Humidity54%
Visibility—
Dew point22°
Wed, 1138° / 26°0
38 °
Grass Lake, Wednesday, 11 November
Partly cloudy. High 38°, low 26°.
Pressure30.09 inHg
Wind12.8 mph NW
Humidity55%
Visibility—
Dew point20°
Thu, 1241° / 28°0
41 °
Grass Lake, Thursday, 12 November
Overcast. High 41°, low 28°.
Pressure30.06 inHg
Wind9.4 mph W
Humidity57%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1340° / 27°0.07
40 °
Grass Lake, Friday, 13 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.07 in
Chance of precipitation27%
Record high66° (1999)
Record low-3° (1982)
Sat, 1440° / 28°0.03
40 °
Grass Lake, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.03 in
Chance of precipitation17%
Record high62° (2025)
Record low2° (2014)
Sun, 1540° / 28°0.04
40 °
Grass Lake, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.04 in
Chance of precipitation15%
Record high62° (2001)
Record low-2° (2014)
Mon, 1640° / 27°0.09
40 °
Grass Lake, Monday, 16 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.09 in
Chance of precipitation22%
Record high63° (2023)
Record low4° (1997)
Tue, 1738° / 27°0.07
38 °
Grass Lake, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.07 in
Chance of precipitation23%
Record high65° (2001)
Record low7° (2014)
Wed, 1838° / 26°0.07
38 °
Grass Lake, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.07 in
Chance of precipitation23%
Record high60° (2001)
Record low1° (2014)
Thu, 1938° / 26°0.07
38 °
Grass Lake, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.07 in
Chance of precipitation35%
Record high55° (2012)
Record low8° (1997)
Fri, 2036° / 24°0.1
36 °
Grass Lake, Friday, 20 November
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.1 in
Chance of precipitation25%
Record high53° (1982)
Record low3° (2022)
Sat, 2136° / 22°0.04
36 °
Grass Lake, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.04 in
Chance of precipitation18%
Record high66° (1990)
Record low-6° (2000)
Sun, 2235° / 23°0.04
35 °
Grass Lake, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high35°
Average low23°
Average precipitation0.04 in
Chance of precipitation27%
Record high53° (2012)
Record low-3° (1978)
Mon, 2334° / 23°0.07
34 °
Grass Lake, Monday, 23 November
Climate normal for this date — 60-year average.
Average high34°
Average low23°
Average precipitation0.07 in
Chance of precipitation32%
Record high52° (2025)
Record low2° (1989)
Tue, 2435° / 22°0.04
35 °
Grass Lake, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.04 in
Chance of precipitation15%
Record high55° (2011)
Record low-8° (1985)
Wed, 2534° / 22°0.04
34 °
Grass Lake, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high34°
Average low22°
Average precipitation0.04 in
Chance of precipitation18%
Record high49° (1998)
Record low-5° (1985)
Thu, 2633° / 20°0.06
33 °
Grass Lake, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high33°
Average low20°
Average precipitation0.06 in
Chance of precipitation32%
Record high50° (2022)
Record low-7° (1977)
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 Grass Lake, 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 Grass Lake, 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.