As of 19:29 CDT

Weather in Summit, WI

63°Current weather

Summit, Wednesday, 7 October, 19:29

Clear. Feels like 61°. High 75°, low 55°.

Pressure29.85 inHg
Wind2 mph NW
Humidity50%
Visibility6.2 mi
Dew point44°

Monthly outlook for Summit, WI: average high 64.8°, average low 47.6°. That is 3.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 15 October (83.7°), the coolest 18 October (34.6°).

64.8°/47.6°
Average high / low
+3.1°
Above normal
3 / 5
Wet days / normal
0.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
7 October – 16 October70.3°60.6°+5.4°
17 October – 26 October55.7°56.2°-0.2°
27 October – 5 Novemberat normal52.2°—

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).

Thu, 0868° / 50°0Partly cloudy
68 °Partly cloudy

Summit, Thursday, 8 October

Partly cloudy. High 68°, low 50°.

Pressure30.09 inHg
Wind8.9 mph W
Humidity49%
Visibility6.2 mi
Dew point43°
Fri, 0969° / 49°0.41Heavy rain
69 °Heavy rain

Summit, Friday, 9 October

Heavy rain. High 69°, low 49°.

Pressure30.15 inHg
Wind8.1 mph SE
Humidity47%
Visibility6.2 mi
Dew point47°
Sat, 1078° / 59°0Clear
78 °Clear

Summit, Saturday, 10 October

Clear. High 78°, low 59°.

Pressure30.06 inHg
Wind10.7 mph S
Humidity55%
Visibility6.2 mi
Dew point58°
Sun, 1175° / 56°0Overcast
75 °Overcast

Summit, Sunday, 11 October

Overcast. High 75°, low 56°.

Pressure30.00 inHg
Wind6.7 mph S
Humidity56%
Visibility6.2 mi
Dew point56°
Mon, 1274° / 54°0.04Light rain
74 °Light rain

Summit, Monday, 12 October

Light rain. High 74°, low 54°.

Pressure29.80 inHg
Wind7.9 mph SW
Humidity63%
Visibility—
Dew point58°
Tue, 1364° / 44°0Overcast
64 °Overcast

Summit, Tuesday, 13 October

Overcast. High 64°, low 44°.

Pressure30.06 inHg
Wind15.6 mph N
Humidity61%
Visibility—
Dew point41°
Wed, 1457° / 44°0.13Light rain
57 °Light rain

Summit, Wednesday, 14 October

Light rain. High 57°, low 44°.

Pressure30.00 inHg
Wind15.9 mph SE
Humidity71%
Visibility—
Dew point42°
Thu, 1584° / 58°0.04Light rain
84 °Light rain

Summit, Thursday, 15 October

Light rain. High 84°, low 58°.

Pressure29.65 inHg
Wind22.1 mph SW
Humidity61%
Visibility—
Dew point65°
Fri, 1659° / 45°0Clear
59 °Clear

Summit, Friday, 16 October

Clear. High 59°, low 45°.

Pressure30.27 inHg
Wind17.3 mph NW
Humidity53%
Visibility—
Dew point41°
Sat, 1750° / 40°0Clear
50 °Clear

Summit, Saturday, 17 October

Clear. High 50°, low 40°.

Pressure30.33 inHg
Wind16 mph NW
Humidity50%
Visibility—
Dew point30°
Sun, 1854° / 35°0Clear
54 °Clear

Summit, Sunday, 18 October

Clear. High 54°, low 35°.

Pressure30.42 inHg
Wind7.6 mph SE
Humidity45%
Visibility—
Dew point30°
Mon, 1957° / 39°0.01Light rain
57 °Light rain

Summit, Monday, 19 October

Light rain. High 57°, low 39°.

Pressure30.45 inHg
Wind14.7 mph S
Humidity47%
Visibility—
Dew point34°
Tue, 2059° / 47°0.02Light rain
59 °Light rain

Summit, Tuesday, 20 October

Light rain. High 59°, low 47°.

Pressure30.27 inHg
Wind13.1 mph SW
Humidity65%
Visibility—
Dew point41°
Wed, 2159° / 45°0Overcast
59 °Overcast

Summit, Wednesday, 21 October

Overcast. High 59°, low 45°.

Pressure30.09 inHg
Wind8.6 mph N
Humidity54%
Visibility—
Dew point40°
Thu, 2255° / 43°0.03Light rain
55 °Light rain

Summit, Thursday, 22 October

Light rain. High 55°, low 43°.

Pressure29.83 inHg
Wind8.7 mph NE
Humidity62%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2356° / 44°0.12Climate normal
56 °Climate normal

Summit, Friday, 23 October

Climate normal for this date — 60-year average.

Average high56°
Average low44°
Average precipitation0.12 in
Chance of precipitation40%
Record high78° (1963)
Record low26° (1969)
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)

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.