As of 18:49 CDT

Weather in Williams Bay, WI

56°Current weather

Williams Bay, Tuesday, 20 October, 18:49

Clear. Feels like 55°. High 67°, low 41°.

Pressure30.30 inHg
Wind5.1 mph SE
Humidity73%
Visibility6.2 mi
Dew point48°

Monthly outlook for Williams Bay, WI: average high 56.8°, average low 41.3°. That is 1.3° above the climate normal for October. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 21 October (71.2°), the coolest 30 October (26.6°).

56.8°/41.3°
Average high / low
+1.3°
Above normal
5 / 5
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
20 October – 29 October59.7°55.7°+2.2°
30 October – 8 November51.9°51.3°+0.3°
9 November – 18 Novemberat normal45.6°—

October records over 66 years

85.3°3 October 2025All-time high
21.2°30 October 1988All-time low

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

Wed, 2171° / 42°0Clear
71 °Clear

Williams Bay, Wednesday, 21 October

Clear. High 71°, low 42°.

Pressure30.24 inHg
Wind6.6 mph SW
Humidity56%
Visibility6.2 mi
Dew point49°
Thu, 2267° / 46°0Mostly clear
67 °Mostly clear

Williams Bay, Thursday, 22 October

Mostly clear. High 67°, low 46°.

Pressure30.27 inHg
Wind2.8 mph E
Humidity67%
Visibility6.2 mi
Dew point55°
Fri, 2367° / 52°0Partly cloudy
67 °Partly cloudy

Williams Bay, Friday, 23 October

Partly cloudy. High 67°, low 52°.

Pressure30.36 inHg
Wind6.3 mph SE
Humidity60%
Visibility6.2 mi
Dew point51°
Sat, 2466° / 50°0Overcast
66 °Overcast

Williams Bay, Saturday, 24 October

Overcast. High 66°, low 50°.

Pressure30.36 inHg
Wind10.9 mph S
Humidity62%
Visibility6.2 mi
Dew point49°
Sun, 2569° / 54°0Overcast
69 °Overcast

Williams Bay, Sunday, 25 October

Overcast. High 69°, low 54°.

Pressure30.33 inHg
Wind9.1 mph S
Humidity58%
Visibility—
Dew point50°
Mon, 2657° / 45°0.07Light rain
57 °Light rain

Williams Bay, Monday, 26 October

Light rain. High 57°, low 45°.

Pressure30.21 inHg
Wind14.9 mph NE
Humidity74%
Visibility—
Dew point48°
Tue, 2745° / 43°0.26Light rain
45 °Light rain

Williams Bay, Tuesday, 27 October

Light rain. High 45°, low 43°.

Pressure30.36 inHg
Wind16 mph NE
Humidity88%
Visibility—
Dew point40°
Wed, 2845° / 38°0.29Light rain
45 °Light rain

Williams Bay, Wednesday, 28 October

Light rain. High 45°, low 38°.

Pressure30.06 inHg
Wind17.5 mph N
Humidity95%
Visibility—
Dew point39°
Thu, 2943° / 32°0Mostly clear
43 °Mostly clear

Williams Bay, Thursday, 29 October

Mostly clear. High 43°, low 32°.

Pressure30.24 inHg
Wind14.6 mph NW
Humidity51%
Visibility—
Dew point24°
Fri, 3044° / 27°0Mostly clear
44 °Mostly clear

Williams Bay, Friday, 30 October

Mostly clear. High 44°, low 27°.

Pressure30.27 inHg
Wind9.9 mph S
Humidity35%
Visibility—
Dew point15°
Sat, 3149° / 38°0.01Light rain
49 °Light rain

Williams Bay, Saturday, 31 October

Light rain. High 49°, low 38°.

Pressure29.94 inHg
Wind17.9 mph S
Humidity46%
Visibility—
Dew point28°
Sun, 0161° / 47°0.06Light rain
61 °Light rain

Williams Bay, Sunday, 1 November

Light rain. High 61°, low 47°.

Pressure29.74 inHg
Wind19.7 mph S
Humidity78%
Visibility—
Dew point49°
Mon, 0260° / 38°0.31Rain
60 °Rain

Williams Bay, Monday, 2 November

Rain. High 60°, low 38°.

Pressure30.12 inHg
Wind19.9 mph NW
Humidity46%
Visibility—
Dew point30°
Tue, 0348° / 33°0Clear
48 °Clear

Williams Bay, Tuesday, 3 November

Clear. High 48°, low 33°.

Pressure30.47 inHg
Wind7.6 mph S
Humidity38%
Visibility—
Dew point21°
Wed, 0449° / 36°0Overcast
49 °Overcast

Williams Bay, Wednesday, 4 November

Overcast. High 49°, low 36°.

Pressure30.27 inHg
Wind12.8 mph W
Humidity56%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0550° / 37°0.11Climate normal
50 °Climate normal

Williams Bay, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation28%
Record high69° (1978)
Record low18° (1991)
Fri, 0650° / 36°0.09Climate normal
50 °Climate normal

Williams Bay, Friday, 6 November

Climate normal for this date — 60-year average.

Average high50°
Average low36°
Average precipitation0.09 in
Chance of precipitation32%
Record high69° (1975)
Record low19° (1991)
Sat, 0749° / 36°0.03Climate normal
49 °Climate normal

Williams Bay, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.03 in
Chance of precipitation17%
Record high67° (2020)
Record low10° (1991)
Sun, 0849° / 36°0.04Climate normal
49 °Climate normal

Williams Bay, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.04 in
Chance of precipitation17%
Record high70° (2020)
Record low13° (1991)
Mon, 0949° / 36°0.11Climate normal
49 °Climate normal

Williams Bay, Monday, 9 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation30%
Record high72° (2020)
Record low18° (1991)
Tue, 1048° / 35°0.1Climate normal
48 °Climate normal

Williams Bay, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.1 in
Chance of precipitation35%
Record high71° (2022)
Record low14° (2017)
Wed, 1145° / 32°0.06Climate normal
45 °Climate normal

Williams Bay, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.06 in
Chance of precipitation25%
Record high68° (1964)
Record low12° (2019)
Thu, 1244° / 31°0.06Climate normal
44 °Climate normal

Williams Bay, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.06 in
Chance of precipitation25%
Record high63° (1964)
Record low3° (2019)
Fri, 1344° / 31°0.04Climate normal
44 °Climate normal

Williams Bay, Friday, 13 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.04 in
Chance of precipitation18%
Record high67° (1999)
Record low7° (1986)
Sat, 1445° / 32°0.06Climate normal
45 °Climate normal

Williams Bay, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.06 in
Chance of precipitation25%
Record high67° (1971)
Record low7° (1995)
Sun, 1545° / 33°0.07Climate normal
45 °Climate normal

Williams Bay, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.07 in
Chance of precipitation27%
Record high69° (2025)
Record low9° (1995)
Mon, 1645° / 32°0.05Climate normal
45 °Climate normal

Williams Bay, Monday, 16 November

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.05 in
Chance of precipitation17%
Record high62° (1988)
Record low18° (1997)
Tue, 1746° / 33°0.1Climate normal
46 °Climate normal

Williams Bay, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.1 in
Chance of precipitation27%
Record high69° (2016)
Record low14° (2014)
Wed, 1846° / 33°0.09Climate normal
46 °Climate normal

Williams Bay, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.09 in
Chance of precipitation28%
Record high65° (1999)
Record low11° (2014)

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 Williams Bay, 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 Williams Bay, 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.