As of 18:20 CDT

Weather in Grass Lake, MN

57°

Grass Lake, Saturday, 17 October, 18:20

Clear. Feels like 54°. High 59°, low 34°.

Pressure30.15 inHg

Wind12.7 mph S

Humidity35%

Visibility6.2 mi

Dew point31°

See detailed hourly forecast

Monthly outlook for Grass Lake, MN: average high 61.1°, average low 44.3°. That is 5.5° above the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 22 October (68.3°), the coolest 17 October (33.5°).

61.1°/44.3°

Average high / low

+5.5°

Above normal

5 / 4

Wet days / normal

1.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
17 October – 26 October	61.3°	52.7°	+4.8°
27 October – 5 November	60.8°	47.5°	+7.4°
6 November – 15 November	at normal	41.2°	—

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).

Sun, 1863° / 44°

63 °

Grass Lake, Sunday, 18 October

Overcast. High 63°, low 44°.

Pressure30.09 inHg

Wind12.3 mph SW

Humidity54%

Visibility6.2 mi

Dew point39°

Mon, 1963° / 40°

63 °

Grass Lake, Monday, 19 October

Overcast. High 63°, low 40°.

Pressure30.36 inHg

Wind5.8 mph E

Humidity68%

Visibility6.2 mi

Dew point46°

Tue, 2063° / 42°

63 °

Grass Lake, Tuesday, 20 October

Clear. High 63°, low 42°.

Pressure30.30 inHg

Wind7.8 mph S

Humidity69%

Visibility6.2 mi

Dew point48°

Wed, 2161° / 46°

61 °

Grass Lake, Wednesday, 21 October

Overcast. High 61°, low 46°.

Pressure30.21 inHg

Wind1.5 mph S

Humidity74%

Visibility6.2 mi

Dew point50°

Thu, 2268° / 46°

68 °

Grass Lake, Thursday, 22 October

Overcast. High 68°, low 46°.

Pressure30.30 inHg

Wind9.7 mph SE

Humidity64%

Visibility—

Dew point51°

Fri, 2368° / 52°

0.12

68 °

Grass Lake, Friday, 23 October

Light rain. High 68°, low 52°.

Pressure30.06 inHg

Wind15.3 mph S

Humidity51%

Visibility—

Dew point47°

Sat, 2463° / 55°

0.62

63 °

Grass Lake, Saturday, 24 October

Rain. High 63°, low 55°.

Pressure30.09 inHg

Wind13.1 mph SW

Humidity86%

Visibility—

Dew point56°

Sun, 2554° / 46°

0.17

54 °

Grass Lake, Sunday, 25 October

Rain. High 54°, low 46°.

Pressure30.03 inHg

Wind9 mph NE

Humidity84%

Visibility—

Dew point47°

Mon, 2651° / 39°

51 °

Grass Lake, Monday, 26 October

Clear. High 51°, low 39°.

Pressure30.27 inHg

Wind10.6 mph N

Humidity51%

Visibility—

Dew point31°

Tue, 2752° / 34°

52 °

Grass Lake, Tuesday, 27 October

Clear. High 52°, low 34°.

Pressure30.42 inHg

Wind7.7 mph SE

Humidity38%

Visibility—

Dew point23°

Wed, 2854° / 38°

0.23

54 °

Grass Lake, Wednesday, 28 October

Rain. High 54°, low 38°.

Pressure30.12 inHg

Wind17.1 mph SE

Humidity51%

Visibility—

Dew point33°

Thu, 2967° / 48°

0.31

67 °

Grass Lake, Thursday, 29 October

Rain. High 67°, low 48°.

Pressure29.62 inHg

Wind15.9 mph SE

Humidity65%

Visibility—

Dew point51°

Fri, 3068° / 50°

0.01

68 °

Grass Lake, Friday, 30 October

Light rain. High 68°, low 50°.

Pressure29.62 inHg

Wind8.6 mph SW

Humidity53%

Visibility—

Dew point46°

Sat, 3159° / 48°

0.04

59 °

Grass Lake, Saturday, 31 October

Light rain. High 59°, low 48°.

Pressure29.77 inHg

Wind16.3 mph N

Humidity42%

Visibility—

Dew point33°

Sun, 0166° / 47°

66 °

Grass Lake, Sunday, 1 November

Clear. High 66°, low 47°.

Pressure29.88 inHg

Wind17.3 mph S

Humidity39%

Visibility—

Dew point36°

From day 17 onward the outlook is built from 60-year climate statistics

Mon, 0246° / 34°

0.07

46 °

Grass Lake, Monday, 2 November

Climate normal for this date — 60-year average.

Average high46°

Average low34°

Average precipitation0.07 in

Chance of precipitation27%

Record high71° (2022)

Record low15° (1984)

Tue, 0346° / 33°

0.03

46 °

Grass Lake, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high46°

Average low33°

Average precipitation0.03 in

Chance of precipitation22%

Record high68° (2008)

Record low11° (1991)

Wed, 0445° / 32°

0.05

45 °

Grass Lake, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high45°

Average low32°

Average precipitation0.05 in

Chance of precipitation27%

Record high65° (2008)

Record low-4° (1991)

Thu, 0545° / 32°

0.04

45 °

Grass Lake, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high45°

Average low32°

Average precipitation0.04 in

Chance of precipitation23%

Record high65° (2016)

Record low7° (1991)

Fri, 0645° / 32°

0.07

45 °

Grass Lake, Friday, 6 November

Climate normal for this date — 60-year average.

Average high45°

Average low32°

Average precipitation0.07 in

Chance of precipitation20%

Record high69° (2020)

Record low4° (1991)

Sat, 0744° / 32°

0.03

44 °

Grass Lake, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high44°

Average low32°

Average precipitation0.03 in

Chance of precipitation18%

Record high67° (2020)

Record low-9° (1991)

Sun, 0844° / 31°

0.04

44 °

Grass Lake, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.04 in

Chance of precipitation20%

Record high69° (2020)

Record low1° (1991)

Mon, 0943° / 31°

0.09

43 °

Grass Lake, Monday, 9 November

Climate normal for this date — 60-year average.

Average high43°

Average low31°

Average precipitation0.09 in

Chance of precipitation33%

Record high66° (1999)

Record low9° (2003)

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)

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.