As of 02:12 CDT

Weather in Grantsburg, WI

42°

Grantsburg, Friday, 30 October, 02:12

Overcast. Feels like 42°. High 53°, low 40°.

Pressure30.33 inHg

Wind2.6 mph NE

Humidity89%

Visibility6.2 mi

Dew point38°

See detailed hourly forecast

Monthly outlook for Grantsburg, WI: average high 51.1°, average low 40.5°. That is 4.2° above the climate normal for October. Precipitation is expected on 7 days (about 1.6 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 1 November (68.1°), the coolest 14 November (31.5°).

51.1°/40.5°

Average high / low

+4.2°

Above normal

7 / 4

Wet days / normal

1.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
30 October – 8 November	55.7°	45.8°	+5.5°
9 November – 18 November	43.3°	39.5°	+2.1°
19 November – 28 November	at normal	34.1°	—

October records over 66 years

84.7°4 October 2025All-time high

16.2°23 October 2002All-time low

Climate normals and records are computed from the nearest reference point — Rock Creek (11 mi).

Sat, 3157° / 41°

0.1

57 °

Grantsburg, Saturday, 31 October

Rain. High 57°, low 41°.

Pressure30.27 inHg

Wind5.6 mph SE

Humidity69%

Visibility6.2 mi

Dew point45°

Sun, 0168° / 50°

68 °

Grantsburg, Sunday, 1 November

Overcast. High 68°, low 50°.

Pressure30.24 inHg

Wind5.5 mph S

Humidity77%

Visibility6.2 mi

Dew point55°

Mon, 0260° / 55°

0.98

60 °

Grantsburg, Monday, 2 November

Heavy rain. High 60°, low 55°.

Pressure29.91 inHg

Wind8.2 mph SE

Humidity85%

Visibility6.2 mi

Dew point55°

Tue, 0363° / 49°

0.12

63 °

Grantsburg, Tuesday, 3 November

Light rain. High 63°, low 49°.

Pressure29.56 inHg

Wind14.1 mph SW

Humidity72%

Visibility—

Dew point54°

Wed, 0454° / 46°

54 °

Grantsburg, Wednesday, 4 November

Overcast. High 54°, low 46°.

Pressure29.74 inHg

Wind11.4 mph SW

Humidity73%

Visibility—

Dew point43°

Thu, 0556° / 42°

56 °

Grantsburg, Thursday, 5 November

Overcast. High 56°, low 42°.

Pressure29.85 inHg

Wind8.2 mph N

Humidity66%

Visibility—

Dew point42°

Fri, 0651° / 41°

51 °

Grantsburg, Friday, 6 November

Overcast. High 51°, low 41°.

Pressure29.97 inHg

Wind7.7 mph NW

Humidity62%

Visibility—

Dew point35°

Sat, 0749° / 36°

49 °

Grantsburg, Saturday, 7 November

Clear. High 49°, low 36°.

Pressure30.21 inHg

Wind5.7 mph NE

Humidity55%

Visibility—

Dew point30°

Sun, 0846° / 35°

0.04

46 °

Grantsburg, Sunday, 8 November

Light rain. High 46°, low 35°.

Pressure30.18 inHg

Wind7.7 mph E

Humidity56%

Visibility—

Dew point30°

Mon, 0946° / 38°

0.08

46 °

Grantsburg, Monday, 9 November

Light rain. High 46°, low 38°.

Pressure30.18 inHg

Wind8.3 mph E

Humidity65%

Visibility—

Dew point32°

Tue, 1045° / 35°

45 °

Grantsburg, Tuesday, 10 November

Overcast. High 45°, low 35°.

Pressure30.21 inHg

Wind6.4 mph NE

Humidity58%

Visibility—

Dew point29°

Wed, 1146° / 32°

46 °

Grantsburg, Wednesday, 11 November

Partly cloudy. High 46°, low 32°.

Pressure29.91 inHg

Wind7.1 mph S

Humidity57%

Visibility—

Dew point29°

Thu, 1243° / 40°

0.11

43 °

Grantsburg, Thursday, 12 November

Light rain. High 43°, low 40°.

Pressure29.65 inHg

Wind6 mph SE

Humidity78%

Visibility—

Dew point37°

Fri, 1341° / 38°

0.22

41 °

Grantsburg, Friday, 13 November

Rain. High 41°, low 38°.

Pressure29.71 inHg

Wind7.6 mph NW

Humidity83%

Visibility—

Dew point35°

Sat, 1439° / 31°

39 °

Grantsburg, Saturday, 14 November

Partly cloudy. High 39°, low 31°.

Pressure29.85 inHg

Wind8.8 mph N

Humidity61%

Visibility—

Dew point26°

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

Sun, 1540° / 28°

0.04

40 °

Grantsburg, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high40°

Average low28°

Average precipitation0.04 in

Chance of precipitation20%

Record high61° (2001)

Record low-3° (2014)

Mon, 1639° / 27°

0.09

39 °

Grantsburg, Monday, 16 November

Climate normal for this date — 60-year average.

Average high39°

Average low27°

Average precipitation0.09 in

Chance of precipitation23%

Record high63° (2023)

Record low6° (1997)

Tue, 1738° / 27°

0.07

38 °

Grantsburg, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high38°

Average low27°

Average precipitation0.07 in

Chance of precipitation25%

Record high65° (2001)

Record low7° (2014)

Wed, 1838° / 26°

0.08

38 °

Grantsburg, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high38°

Average low26°

Average precipitation0.08 in

Chance of precipitation20%

Record high60° (2001)

Record low2° (2014)

Thu, 1938° / 26°

0.07

38 °

Grantsburg, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high38°

Average low26°

Average precipitation0.07 in

Chance of precipitation30%

Record high55° (2012)

Record low8° (2022)

Fri, 2036° / 24°

0.1

36 °

Grantsburg, 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 low1° (2022)

Sat, 2136° / 22°

0.04

36 °

Grantsburg, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high36°

Average low22°

Average precipitation0.04 in

Chance of precipitation20%

Record high65° (1990)

Record low-6° (2014)

Sun, 2235° / 23°

0.04

35 °

Grantsburg, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high35°

Average low23°

Average precipitation0.04 in

Chance of precipitation25%

Record high53° (2012)

Record low-1° (1978)

Mon, 2334° / 23°

0.07

34 °

Grantsburg, Monday, 23 November

Climate normal for this date — 60-year average.

Average high34°

Average low23°

Average precipitation0.07 in

Chance of precipitation33%

Record high51° (2025)

Record low3° (1989)

Tue, 2435° / 22°

0.04

35 °

Grantsburg, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high35°

Average low22°

Average precipitation0.04 in

Chance of precipitation17%

Record high54° (2011)

Record low-8° (1989)

Wed, 2534° / 22°

0.04

34 °

Grantsburg, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high34°

Average low22°

Average precipitation0.04 in

Chance of precipitation20%

Record high49° (1998)

Record low-7° (1985)

Thu, 2633° / 20°

0.06

33 °

Grantsburg, 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 °

Grantsburg, Friday, 27 November

Climate normal for this date — 60-year average.

Average high31°

Average low19°

Average precipitation0.07 in

Chance of precipitation25%

Record high53° (1998)

Record low-9° (1996)

Sat, 2831° / 18°

0.07

31 °

Grantsburg, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high31°

Average low18°

Average precipitation0.07 in

Chance of precipitation25%

Record high50° (1998)

Record low-5° (1976)

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 Grantsburg, 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 Grantsburg, 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.