As of 08:12 CDT

Weather in Grantsburg, WI

44°

Grantsburg, Tuesday, 27 October, 08:12

Overcast. Feels like 38°. High 57°, low 42°.

Pressure30.15 inHg

Wind9.6 mph E

Humidity96%

Visibility6.2 mi

Dew point43°

See detailed hourly forecast

Monthly outlook for Grantsburg, WI: average high 54.6°, average low 41.2°. That is 5° above the climate normal for October. Precipitation is expected on 2 days (about 1.1 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 28 October (69.2°), the coolest 6 November (29.6°).

54.6°/41.2°

Average high / low

+5°

Above normal

2 / 4

Wet days / normal

1.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
27 October – 5 November	56.8°	47.4°	+5.2°
6 November – 15 November	51.1°	41.1°	+5.5°
16 November – 25 November	at normal	36.3°	—

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).

Wed, 2869° / 47°

0.33

69 °

Grantsburg, Wednesday, 28 October

Rain. High 69°, low 47°.

Pressure29.97 inHg

Wind10.4 mph S

Humidity73%

Visibility6.2 mi

Dew point55°

Thu, 2954° / 42°

54 °

Grantsburg, Thursday, 29 October

Clear. High 54°, low 42°.

Pressure30.15 inHg

Wind10.8 mph W

Humidity54%

Visibility6.2 mi

Dew point35°

Fri, 3053° / 41°

53 °

Grantsburg, Friday, 30 October

Overcast. High 53°, low 41°.

Pressure30.33 inHg

Wind2.7 mph E

Humidity55%

Visibility6.2 mi

Dew point35°

Sat, 3161° / 38°

61 °

Grantsburg, Saturday, 31 October

Clear. High 61°, low 38°.

Pressure30.27 inHg

Wind7.1 mph NE

Humidity51%

Visibility—

Dew point37°

Sun, 0162° / 46°

62 °

Grantsburg, Sunday, 1 November

Overcast. High 62°, low 46°.

Pressure30.21 inHg

Wind6.9 mph S

Humidity69%

Visibility—

Dew point49°

Mon, 0253° / 44°

53 °

Grantsburg, Monday, 2 November

Partly cloudy. High 53°, low 44°.

Pressure30.15 inHg

Wind12.7 mph NE

Humidity69%

Visibility—

Dew point42°

Tue, 0353° / 44°

53 °

Grantsburg, Tuesday, 3 November

Overcast. High 53°, low 44°.

Pressure30.39 inHg

Wind9.4 mph NE

Humidity57%

Visibility—

Dew point34°

Wed, 0455° / 39°

55 °

Grantsburg, Wednesday, 4 November

Partly cloudy. High 55°, low 39°.

Pressure30.15 inHg

Wind4.5 mph SW

Humidity58%

Visibility—

Dew point37°

Thu, 0552° / 40°

52 °

Grantsburg, Thursday, 5 November

Mostly clear. High 52°, low 40°.

Pressure30.03 inHg

Wind11.7 mph N

Humidity35%

Visibility—

Dew point24°

Fri, 0644° / 30°

44 °

Grantsburg, Friday, 6 November

Clear. High 44°, low 30°.

Pressure30.30 inHg

Wind7.3 mph N

Humidity44%

Visibility—

Dew point20°

Sat, 0747° / 30°

47 °

Grantsburg, Saturday, 7 November

Overcast. High 47°, low 30°.

Pressure30.00 inHg

Wind13.3 mph S

Humidity46%

Visibility—

Dew point24°

Sun, 0853° / 41°

0.01

53 °

Grantsburg, Sunday, 8 November

Light rain. High 53°, low 41°.

Pressure30.06 inHg

Wind7.3 mph S

Humidity56%

Visibility—

Dew point36°

Mon, 0951° / 47°

0.01

51 °

Grantsburg, Monday, 9 November

Light rain. High 51°, low 47°.

Pressure29.91 inHg

Wind8.3 mph S

Humidity88%

Visibility—

Dew point47°

Tue, 1057° / 43°

57 °

Grantsburg, Tuesday, 10 November

Overcast. High 57°, low 43°.

Pressure29.85 inHg

Wind6.9 mph SW

Humidity46%

Visibility—

Dew point34°

Wed, 1154° / 44°

54 °

Grantsburg, Wednesday, 11 November

Overcast. High 54°, low 44°.

Pressure29.83 inHg

Wind8.4 mph NW

Humidity36%

Visibility—

Dew point26°

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

Thu, 1238° / 26°

0.07

38 °

Grantsburg, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high38°

Average low26°

Average precipitation0.07 in

Chance of precipitation27%

Record high57° (2001)

Record low-7° (1966)

Fri, 1339° / 27°

0.07

39 °

Grantsburg, Friday, 13 November

Climate normal for this date — 60-year average.

Average high39°

Average low27°

Average precipitation0.07 in

Chance of precipitation25%

Record high65° (1999)

Record low-2° (1982)

Sat, 1440° / 28°

0.03

40 °

Grantsburg, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high40°

Average low28°

Average precipitation0.03 in

Chance of precipitation20%

Record high63° (2025)

Record low4° (2014)

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)

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.