As of 01:46 CDT

Weather in Summit, WI

53°Current weather

Summit, Thursday, 8 October, 01:46

Overcast. Feels like 51°. High 68°, low 50°.

Pressure29.94 inHg
Wind5.7 mph W
Humidity67%
Visibility6.2 mi
Dew point42°

Monthly outlook for Summit, WI: average high 64.4°, average low 47.8°. That is 3.1° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 15 October (80.5°), the coolest 21 October (33.9°).

64.4°/47.8°
Average high / low
+3.1°
Above normal
3 / 5
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 October – 17 October70.1°60.2°+5.5°
18 October – 27 October55°55.8°-0.5°
28 October – 6 Novemberat normal51.7°—

October records over 66 years

84.9°3 October 2025All-time high
23°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — North Prairie (9 mi).

Fri, 0975° / 53°0.01Light rain
75 °Light rain

Summit, Friday, 9 October

Light rain. High 75°, low 53°.

Pressure30.12 inHg
Wind6.9 mph SE
Humidity47%
Visibility6.2 mi
Dew point48°
Sat, 1079° / 59°0Clear
79 °Clear

Summit, Saturday, 10 October

Clear. High 79°, low 59°.

Pressure30.09 inHg
Wind10.2 mph S
Humidity55%
Visibility6.2 mi
Dew point59°
Sun, 1174° / 58°0Mostly clear
74 °Mostly clear

Summit, Sunday, 11 October

Mostly clear. High 74°, low 58°.

Pressure30.00 inHg
Wind6.8 mph SE
Humidity58%
Visibility6.2 mi
Dew point57°
Mon, 1277° / 56°0.03Light rain
77 °Light rain

Summit, Monday, 12 October

Light rain. High 77°, low 56°.

Pressure29.74 inHg
Wind10.6 mph W
Humidity58%
Visibility—
Dew point57°
Tue, 1362° / 44°0Overcast
62 °Overcast

Summit, Tuesday, 13 October

Overcast. High 62°, low 44°.

Pressure30.03 inHg
Wind15.9 mph NW
Humidity55%
Visibility—
Dew point40°
Wed, 1458° / 40°0.02Light rain
58 °Light rain

Summit, Wednesday, 14 October

Light rain. High 58°, low 40°.

Pressure30.06 inHg
Wind10.9 mph SE
Humidity54%
Visibility—
Dew point39°
Thu, 1580° / 58°0.61Rain
80 °Rain

Summit, Thursday, 15 October

Rain. High 80°, low 58°.

Pressure29.74 inHg
Wind19 mph S
Humidity63%
Visibility—
Dew point64°
Fri, 1674° / 58°0.3Rain
74 °Rain

Summit, Friday, 16 October

Rain. High 74°, low 58°.

Pressure29.83 inHg
Wind15 mph SW
Humidity81%
Visibility—
Dew point67°
Sat, 1753° / 45°0Overcast
53 °Overcast

Summit, Saturday, 17 October

Overcast. High 53°, low 45°.

Pressure30.09 inHg
Wind16.2 mph SW
Humidity62%
Visibility—
Dew point36°
Sun, 1849° / 44°0Overcast
49 °Overcast

Summit, Sunday, 18 October

Overcast. High 49°, low 44°.

Pressure30.27 inHg
Wind10.1 mph W
Humidity73%
Visibility—
Dew point39°
Mon, 1959° / 40°0Clear
59 °Clear

Summit, Monday, 19 October

Clear. High 59°, low 40°.

Pressure30.24 inHg
Wind11.4 mph SW
Humidity51%
Visibility—
Dew point37°
Tue, 2055° / 39°0Overcast
55 °Overcast

Summit, Tuesday, 20 October

Overcast. High 55°, low 39°.

Pressure30.15 inHg
Wind13.2 mph N
Humidity51%
Visibility—
Dew point36°
Wed, 2154° / 34°0Mostly clear
54 °Mostly clear

Summit, Wednesday, 21 October

Mostly clear. High 54°, low 34°.

Pressure30.24 inHg
Wind8.9 mph S
Humidity51%
Visibility—
Dew point32°
Thu, 2261° / 39°0Mostly clear
61 °Mostly clear

Summit, Thursday, 22 October

Mostly clear. High 61°, low 39°.

Pressure29.71 inHg
Wind17.9 mph S
Humidity50%
Visibility—
Dew point39°
Fri, 2352° / 48°0.06Light rain
52 °Light rain

Summit, Friday, 23 October

Light rain. High 52°, low 48°.

Pressure29.68 inHg
Wind16.9 mph W
Humidity74%
Visibility—
Dew point42°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2455° / 44°0.1Climate normal
55 °Climate normal

Summit, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high55°
Average low44°
Average precipitation0.1 in
Chance of precipitation35%
Record high76° (1963)
Record low25° (1981)
Sun, 2555° / 42°0.07Climate normal
55 °Climate normal

Summit, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high55°
Average low42°
Average precipitation0.07 in
Chance of precipitation28%
Record high74° (1989)
Record low29° (1962)
Mon, 2654° / 42°0.1Climate normal
54 °Climate normal

Summit, Monday, 26 October

Climate normal for this date — 60-year average.

Average high54°
Average low42°
Average precipitation0.1 in
Chance of precipitation22%
Record high75° (1963)
Record low25° (1962)
Tue, 2754° / 41°0.07Climate normal
54 °Climate normal

Summit, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high54°
Average low41°
Average precipitation0.07 in
Chance of precipitation25%
Record high73° (2014)
Record low27° (1976)
Wed, 2853° / 41°0.05Climate normal
53 °Climate normal

Summit, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high53°
Average low41°
Average precipitation0.05 in
Chance of precipitation25%
Record high68° (1974)
Record low28° (1976)
Thu, 2953° / 40°0.05Climate normal
53 °Climate normal

Summit, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.05 in
Chance of precipitation20%
Record high77° (2024)
Record low26° (1988)
Fri, 3055° / 41°0.09Climate normal
55 °Climate normal

Summit, Friday, 30 October

Climate normal for this date — 60-year average.

Average high55°
Average low41°
Average precipitation0.09 in
Chance of precipitation28%
Record high75° (2024)
Record low23° (1988)
Sat, 3153° / 41°0.08Climate normal
53 °Climate normal

Summit, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high53°
Average low41°
Average precipitation0.08 in
Chance of precipitation40%
Record high69° (1974)
Record low24° (2019)
Sun, 0152° / 40°0.18Climate normal
52 °Climate normal

Summit, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high52°
Average low40°
Average precipitation0.18 in
Chance of precipitation42%
Record high71° (2016)
Record low19° (2019)
Mon, 0251° / 39°0.12Climate normal
51 °Climate normal

Summit, Monday, 2 November

Climate normal for this date — 60-year average.

Average high51°
Average low39°
Average precipitation0.12 in
Chance of precipitation37%
Record high72° (1961)
Record low21° (1991)
Tue, 0351° / 38°0.05Climate normal
51 °Climate normal

Summit, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.05 in
Chance of precipitation25%
Record high70° (1964)
Record low16° (1991)
Wed, 0450° / 39°0.08Climate normal
50 °Climate normal

Summit, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high50°
Average low39°
Average precipitation0.08 in
Chance of precipitation23%
Record high69° (2008)
Record low13° (1991)
Thu, 0550° / 38°0.1Climate normal
50 °Climate normal

Summit, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high50°
Average low38°
Average precipitation0.1 in
Chance of precipitation30%
Record high69° (1978)
Record low18° (1991)
Fri, 0649° / 37°0.08Climate normal
49 °Climate normal

Summit, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.08 in
Chance of precipitation30%
Record high69° (1975)
Record low18° (1991)

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 Summit, 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 Summit, 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.