Monthly outlook for Grass Lake, MN: average high 53.3°, average low 41.1°. That is 3.5° above the climate normal for October. Precipitation is expected on 7 days (about 1.4 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 28 October (63.7°), the coolest 9 November (30.1°).
53.3°/41.1°
Average high / low
+3.5°
Above normal
7 / 4
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
56.2°
48.8°
+4.1°
4 November – 13 November
48.6°
42.2°
+3.5°
14 November – 23 November
at normal
37.5°
—
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).
Mon, 2648° / 41°0.15
48 °
Grass Lake, Monday, 26 October
Rain. High 48°, low 41°.
Pressure30.50 inHg
Wind8.7 mph NE
Humidity58%
Visibility6.2 mi
Dew point32°
Tue, 2758° / 41°0.41
58 °
Grass Lake, Tuesday, 27 October
Rain. High 58°, low 41°.
Pressure30.09 inHg
Wind12.8 mph SE
Humidity95%
Visibility6.2 mi
Dew point48°
Wed, 2864° / 45°0.43
64 °
Grass Lake, Wednesday, 28 October
Heavy rain. High 64°, low 45°.
Pressure30.00 inHg
Wind7.4 mph S
Humidity83%
Visibility6.2 mi
Dew point55°
Thu, 2958° / 44°0
58 °
Grass Lake, Thursday, 29 October
Clear. High 58°, low 44°.
Pressure30.12 inHg
Wind6.5 mph NW
Humidity65%
Visibility6.2 mi
Dew point42°
Fri, 3061° / 41°0
61 °
Grass Lake, Friday, 30 October
Overcast. High 61°, low 41°.
Pressure30.15 inHg
Wind5.8 mph E
Humidity61%
Visibility—
Dew point42°
Sat, 3155° / 45°0.01
55 °
Grass Lake, Saturday, 31 October
Light rain. High 55°, low 45°.
Pressure30.15 inHg
Wind10.2 mph NE
Humidity61%
Visibility—
Dew point40°
Sun, 0152° / 46°0.14
52 °
Grass Lake, Sunday, 1 November
Light rain. High 52°, low 46°.
Pressure30.06 inHg
Wind5.6 mph S
Humidity95%
Visibility—
Dew point49°
Mon, 0258° / 46°0.01
58 °
Grass Lake, Monday, 2 November
Light rain. High 58°, low 46°.
Pressure30.00 inHg
Wind5.9 mph SE
Humidity71%
Visibility—
Dew point47°
Tue, 0354° / 41°0.11
54 °
Grass Lake, Tuesday, 3 November
Light rain. High 54°, low 41°.
Pressure30.06 inHg
Wind13 mph NW
Humidity52%
Visibility—
Dew point36°
Wed, 0444° / 39°0
44 °
Grass Lake, Wednesday, 4 November
Overcast. High 44°, low 39°.
Pressure30.47 inHg
Wind10.7 mph NE
Humidity66%
Visibility—
Dew point32°
Thu, 0549° / 33°0
49 °
Grass Lake, Thursday, 5 November
Overcast. High 49°, low 33°.
Pressure30.39 inHg
Wind13.1 mph S
Humidity54%
Visibility—
Dew point28°
Fri, 0651° / 44°0.04
51 °
Grass Lake, Friday, 6 November
Light rain. High 51°, low 44°.
Pressure29.85 inHg
Wind13 mph S
Humidity73%
Visibility—
Dew point40°
Sat, 0760° / 43°0.07
60 °
Grass Lake, Saturday, 7 November
Light rain. High 60°, low 43°.
Pressure29.59 inHg
Wind15.6 mph NW
Humidity77%
Visibility—
Dew point51°
Sun, 0842° / 33°0
42 °
Grass Lake, Sunday, 8 November
Partly cloudy. High 42°, low 33°.
Pressure30.33 inHg
Wind17.3 mph NW
Humidity49%
Visibility—
Dew point22°
Mon, 0946° / 30°0
46 °
Grass Lake, Monday, 9 November
Overcast. High 46°, low 30°.
Pressure30.12 inHg
Wind11.9 mph S
Humidity52%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1040° / 30°0.11
40 °
Grass Lake, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high40°
Average low30°
Average precipitation0.11 in
Chance of precipitation32%
Record high62° (2016)
Record low8° (2017)
Wed, 1139° / 28°0.06
39 °
Grass Lake, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.06 in
Chance of precipitation23%
Record high58° (1964)
Record low8° (1986)
Thu, 1238° / 26°0.06
38 °
Grass Lake, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.06 in
Chance of precipitation27%
Record high57° (2001)
Record low-9° (1966)
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)
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.