As of 15:06 CDT

Weather in Grantsburg, WI

51°Current weather

Grantsburg, Tuesday, 27 October, 15:06

Overcast. Feels like 50°. High 54°, low 42°.

Pressure30.03 inHg
Wind9.5 mph S
Humidity94%
Visibility6.2 mi
Dew point49°

Monthly outlook for Grantsburg, WI: average high 55.6°, average low 42°. That is 5.6° 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 11 November (30.3°).

55.6°/42°
Average high / low
+5.6°
Above normal
2 / 4
Wet days / normal
1.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
27 October – 5 November58°47.4°+5.9°
6 November – 15 November51.6°41.1°+5.8°
16 November – 25 Novemberat normal36.3°—

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°0.33Rain
69 °Rain

Grantsburg, Wednesday, 28 October

Rain. High 69°, low 47°.

Pressure29.97 inHg
Wind10.4 mph S
Humidity73%
Visibility6.2 mi
Dew point55°
Thu, 2955° / 42°0Clear
55 °Clear

Grantsburg, Thursday, 29 October

Clear. High 55°, low 42°.

Pressure30.18 inHg
Wind7.4 mph W
Humidity61%
Visibility6.2 mi
Dew point38°
Fri, 3059° / 40°0Overcast
59 °Overcast

Grantsburg, Friday, 30 October

Overcast. High 59°, low 40°.

Pressure30.33 inHg
Wind2.9 mph SE
Humidity53%
Visibility6.2 mi
Dew point38°
Sat, 3162° / 39°0Clear
62 °Clear

Grantsburg, Saturday, 31 October

Clear. High 62°, low 39°.

Pressure30.27 inHg
Wind4.4 mph E
Humidity59%
Visibility6.2 mi
Dew point41°
Sun, 0163° / 49°0.01Light rain
63 °Light rain

Grantsburg, Sunday, 1 November

Light rain. High 63°, low 49°.

Pressure30.21 inHg
Wind6.5 mph S
Humidity79%
Visibility—
Dew point51°
Mon, 0256° / 50°0.02Light rain
56 °Light rain

Grantsburg, Monday, 2 November

Light rain. High 56°, low 50°.

Pressure29.97 inHg
Wind9.8 mph E
Humidity80%
Visibility—
Dew point49°
Tue, 0354° / 51°0Light rain
54 °Light rain

Grantsburg, Tuesday, 3 November

Light rain. High 54°, low 51°.

Pressure30.21 inHg
Wind8.5 mph NE
Humidity82%
Visibility—
Dew point48°
Wed, 0454° / 43°0Overcast
54 °Overcast

Grantsburg, Wednesday, 4 November

Overcast. High 54°, low 43°.

Pressure30.18 inHg
Wind8.1 mph NE
Humidity64%
Visibility—
Dew point40°
Thu, 0554° / 41°0Overcast
54 °Overcast

Grantsburg, Thursday, 5 November

Overcast. High 54°, low 41°.

Pressure30.03 inHg
Wind11 mph NE
Humidity58%
Visibility—
Dew point37°
Fri, 0654° / 41°0Clear
54 °Clear

Grantsburg, Friday, 6 November

Clear. High 54°, low 41°.

Pressure30.03 inHg
Wind7.2 mph NE
Humidity47%
Visibility—
Dew point31°
Sat, 0755° / 37°0Overcast
55 °Overcast

Grantsburg, Saturday, 7 November

Overcast. High 55°, low 37°.

Pressure29.91 inHg
Wind7 mph S
Humidity51%
Visibility—
Dew point33°
Sun, 0860° / 44°0Overcast
60 °Overcast

Grantsburg, Sunday, 8 November

Overcast. High 60°, low 44°.

Pressure29.77 inHg
Wind15 mph S
Humidity61%
Visibility—
Dew point42°
Mon, 0954° / 41°0Light rain
54 °Light rain

Grantsburg, Monday, 9 November

Light rain. High 54°, low 41°.

Pressure29.68 inHg
Wind16.8 mph NW
Humidity54%
Visibility—
Dew point33°
Tue, 1043° / 33°0Overcast
43 °Overcast

Grantsburg, Tuesday, 10 November

Overcast. High 43°, low 33°.

Pressure30.18 inHg
Wind17 mph NW
Humidity44%
Visibility—
Dew point20°
Wed, 1145° / 30°0Overcast
45 °Overcast

Grantsburg, Wednesday, 11 November

Overcast. High 45°, low 30°.

Pressure30.21 inHg
Wind10.6 mph S
Humidity39%
Visibility—
Dew point17°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1238° / 26°0.07Climate normal
38 °Climate normal

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°0.07Climate normal
39 °Climate normal

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°0.03Climate normal
40 °Climate normal

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°0.04Climate normal
40 °Climate normal

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°0.09Climate normal
39 °Climate normal

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°0.07Climate normal
38 °Climate normal

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°0.08Climate normal
38 °Climate normal

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°0.07Climate normal
38 °Climate normal

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°0.1Climate normal
36 °Climate normal

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°0.04Climate normal
36 °Climate normal

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°0.04Climate normal
35 °Climate normal

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°0.07Climate normal
34 °Climate normal

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°0.04Climate normal
35 °Climate normal

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°0.04Climate normal
34 °Climate normal

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.