Monthly outlook for Grass Lake, MN: average high 54.6°, average low 43°. That is 6.1° above the climate normal for October. Precipitation is expected on 4 days (about 3.2 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 1 November (67.1°), the coolest 10 November (30.2°).
54.6°/43°
Average high / low
+6.1°
Above normal
4 / 4
Wet days / normal
3.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
59°
45.9°
+7.3°
9 November – 18 November
47.1°
39.5°
+4.2°
19 November – 28 November
at normal
34.1°
—
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).
Sat, 3161° / 40°0.02
61 °
Grass Lake, Saturday, 31 October
Light rain. High 61°, low 40°.
Pressure30.24 inHg
Wind6.9 mph SE
Humidity73%
Visibility6.2 mi
Dew point44°
Sun, 0167° / 50°0
67 °
Grass Lake, Sunday, 1 November
Overcast. High 67°, low 50°.
Pressure30.21 inHg
Wind8.4 mph S
Humidity75%
Visibility6.2 mi
Dew point55°
Mon, 0257° / 53°0.93
57 °
Grass Lake, Monday, 2 November
Heavy rain. High 57°, low 53°.
Pressure29.94 inHg
Wind11 mph SE
Humidity96%
Visibility2.3 mi
Dew point55°
Tue, 0361° / 54°1.1
61 °
Grass Lake, Tuesday, 3 November
Rain. High 61°, low 54°.
Pressure29.74 inHg
Wind9.2 mph E
Humidity98%
Visibility3.1 mi
Dew point58°
Wed, 0459° / 54°1
59 °
Grass Lake, Wednesday, 4 November
Rain. High 59°, low 54°.
Pressure29.56 inHg
Wind11.3 mph NE
Humidity96%
Visibility—
Dew point58°
Thu, 0558° / 49°0
58 °
Grass Lake, Thursday, 5 November
Overcast. High 58°, low 49°.
Pressure29.91 inHg
Wind11.1 mph NW
Humidity65%
Visibility—
Dew point44°
Fri, 0658° / 50°0.02
58 °
Grass Lake, Friday, 6 November
Light rain. High 58°, low 50°.
Pressure29.91 inHg
Wind5 mph NE
Humidity77%
Visibility—
Dew point47°
Sat, 0759° / 46°0
59 °
Grass Lake, Saturday, 7 November
Overcast. High 59°, low 46°.
Pressure30.06 inHg
Wind6.7 mph E
Humidity69%
Visibility—
Dew point46°
Sun, 0857° / 51°0
57 °
Grass Lake, Sunday, 8 November
Overcast. High 57°, low 51°.
Pressure30.27 inHg
Wind5.9 mph E
Humidity75%
Visibility—
Dew point49°
Mon, 0950° / 36°0
50 °
Grass Lake, Monday, 9 November
Overcast. High 50°, low 36°.
Pressure30.27 inHg
Wind6 mph NE
Humidity57%
Visibility—
Dew point27°
Tue, 1046° / 30°0
46 °
Grass Lake, Tuesday, 10 November
Clear. High 46°, low 30°.
Pressure30.18 inHg
Wind5.5 mph N
Humidity50%
Visibility—
Dew point25°
Wed, 1146° / 30°0
46 °
Grass Lake, Wednesday, 11 November
Partly cloudy. High 46°, low 30°.
Pressure30.06 inHg
Wind5.5 mph SW
Humidity41%
Visibility—
Dew point20°
Thu, 1249° / 32°0
49 °
Grass Lake, Thursday, 12 November
Clear. High 49°, low 32°.
Pressure29.77 inHg
Wind13.4 mph S
Humidity59%
Visibility—
Dew point32°
Fri, 1349° / 36°0
49 °
Grass Lake, Friday, 13 November
Overcast. High 49°, low 36°.
Pressure29.74 inHg
Wind10.3 mph NE
Humidity54%
Visibility—
Dew point30°
Sat, 1444° / 41°0.1
44 °
Grass Lake, Saturday, 14 November
Light rain. High 44°, low 41°.
Pressure29.85 inHg
Wind14.5 mph NE
Humidity84%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 2731° / 19°0.07
31 °
Grass Lake, Friday, 27 November
Climate normal for this date — 60-year average.
Average high31°
Average low19°
Average precipitation0.07 in
Chance of precipitation23%
Record high53° (1998)
Record low-10° (1996)
Sat, 2831° / 18°0.07
31 °
Grass Lake, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high31°
Average low18°
Average precipitation0.07 in
Chance of precipitation25%
Record high50° (2017)
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.