As of 20:37 CDT

Weather in Decker, WI

62°Current weather

Decker, Wednesday, 7 October, 20:37

Clear. Feels like 59°. High 74°, low 55°.

Pressure29.85 inHg
Wind9.7 mph NW
Humidity41%
Visibility6.2 mi
Dew point38°

Monthly outlook for Decker, WI: average high 64.5°, average low 49.8°. That is 3.9° above the climate normal for October. Precipitation is expected on 5 days (about 1.3 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 15 October (78.5°), the coolest 21 October (37.4°).

64.5°/49.8°
Average high / low
+3.9°
Above normal
5 / 5
Wet days / normal
1.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
7 October – 16 October70.5°58.6°+6.7°
17 October – 26 October54.3°54.6°-0.2°
27 October – 5 Novemberat normal50.9°—

October records over 66 years

81.3°3 October 2025All-time high
28.2°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — Cedar Grove (7 mi).

Thu, 0867° / 51°0Overcast
67 °Overcast

Decker, Thursday, 8 October

Overcast. High 67°, low 51°.

Pressure30.06 inHg
Wind11 mph NW
Humidity47%
Visibility6.2 mi
Dew point41°
Fri, 0972° / 53°0.06Light rain
72 °Light rain

Decker, Friday, 9 October

Light rain. High 72°, low 53°.

Pressure30.15 inHg
Wind6.3 mph SE
Humidity59%
Visibility6.2 mi
Dew point50°
Sat, 1078° / 56°0Clear
78 °Clear

Decker, Saturday, 10 October

Clear. High 78°, low 56°.

Pressure30.09 inHg
Wind9.9 mph S
Humidity58%
Visibility6.2 mi
Dew point59°
Sun, 1169° / 58°0Overcast
69 °Overcast

Decker, Sunday, 11 October

Overcast. High 69°, low 58°.

Pressure30.00 inHg
Wind9.7 mph S
Humidity68%
Visibility6.2 mi
Dew point58°
Mon, 1275° / 56°0.08Light rain
75 °Light rain

Decker, Monday, 12 October

Light rain. High 75°, low 56°.

Pressure29.74 inHg
Wind9.4 mph SW
Humidity62%
Visibility—
Dew point58°
Tue, 1362° / 46°0.01Light rain
62 °Light rain

Decker, Tuesday, 13 October

Light rain. High 62°, low 46°.

Pressure30.00 inHg
Wind13.8 mph NW
Humidity56%
Visibility—
Dew point39°
Wed, 1455° / 43°0.07Light rain
55 °Light rain

Decker, Wednesday, 14 October

Light rain. High 55°, low 43°.

Pressure30.09 inHg
Wind15 mph S
Humidity65%
Visibility—
Dew point42°
Thu, 1579° / 57°0.77Rain
79 °Rain

Decker, Thursday, 15 October

Rain. High 79°, low 57°.

Pressure29.71 inHg
Wind20.4 mph S
Humidity66%
Visibility—
Dew point63°
Fri, 1675° / 64°0.33Rain
75 °Rain

Decker, Friday, 16 October

Rain. High 75°, low 64°.

Pressure29.80 inHg
Wind15.7 mph SW
Humidity77%
Visibility—
Dew point66°
Sat, 1755° / 46°0Overcast
55 °Overcast

Decker, Saturday, 17 October

Overcast. High 55°, low 46°.

Pressure30.06 inHg
Wind18.5 mph SW
Humidity62%
Visibility—
Dew point38°
Sun, 1850° / 46°0Overcast
50 °Overcast

Decker, Sunday, 18 October

Overcast. High 50°, low 46°.

Pressure30.27 inHg
Wind12.5 mph W
Humidity72%
Visibility—
Dew point40°
Mon, 1959° / 43°0Clear
59 °Clear

Decker, Monday, 19 October

Clear. High 59°, low 43°.

Pressure30.24 inHg
Wind11.1 mph S
Humidity53%
Visibility—
Dew point38°
Tue, 2055° / 41°0Overcast
55 °Overcast

Decker, Tuesday, 20 October

Overcast. High 55°, low 41°.

Pressure30.15 inHg
Wind13.7 mph N
Humidity52%
Visibility—
Dew point36°
Wed, 2150° / 37°0Partly cloudy
50 °Partly cloudy

Decker, Wednesday, 21 October

Partly cloudy. High 50°, low 37°.

Pressure30.24 inHg
Wind11.9 mph S
Humidity59%
Visibility—
Dew point34°
Thu, 2258° / 44°0Partly cloudy
58 °Partly cloudy

Decker, Thursday, 22 October

Partly cloudy. High 58°, low 44°.

Pressure29.71 inHg
Wind19.8 mph S
Humidity53%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2354° / 46°0.13Climate normal
54 °Climate normal

Decker, Friday, 23 October

Climate normal for this date — 60-year average.

Average high54°
Average low46°
Average precipitation0.13 in
Chance of precipitation40%
Record high71° (1963)
Record low31° (1969)
Sat, 2454° / 46°0.1Climate normal
54 °Climate normal

Decker, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high54°
Average low46°
Average precipitation0.1 in
Chance of precipitation40%
Record high74° (2023)
Record low30° (1981)
Sun, 2553° / 45°0.06Climate normal
53 °Climate normal

Decker, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high53°
Average low45°
Average precipitation0.06 in
Chance of precipitation32%
Record high69° (2023)
Record low33° (1962)
Mon, 2652° / 45°0.09Climate normal
52 °Climate normal

Decker, Monday, 26 October

Climate normal for this date — 60-year average.

Average high52°
Average low45°
Average precipitation0.09 in
Chance of precipitation25%
Record high71° (1963)
Record low29° (1962)
Tue, 2753° / 44°0.09Climate normal
53 °Climate normal

Decker, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high53°
Average low44°
Average precipitation0.09 in
Chance of precipitation27%
Record high69° (2023)
Record low29° (2020)
Wed, 2852° / 43°0.07Climate normal
52 °Climate normal

Decker, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high52°
Average low43°
Average precipitation0.07 in
Chance of precipitation27%
Record high63° (1984)
Record low31° (2020)
Thu, 2951° / 43°0.05Climate normal
51 °Climate normal

Decker, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high51°
Average low43°
Average precipitation0.05 in
Chance of precipitation22%
Record high78° (2024)
Record low29° (1988)
Fri, 3053° / 44°0.08Climate normal
53 °Climate normal

Decker, Friday, 30 October

Climate normal for this date — 60-year average.

Average high53°
Average low44°
Average precipitation0.08 in
Chance of precipitation30%
Record high76° (2024)
Record low28° (1988)
Sat, 3152° / 44°0.1Climate normal
52 °Climate normal

Decker, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high52°
Average low44°
Average precipitation0.1 in
Chance of precipitation35%
Record high66° (1971)
Record low28° (2019)
Sun, 0151° / 42°0.15Climate normal
51 °Climate normal

Decker, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high51°
Average low42°
Average precipitation0.15 in
Chance of precipitation38%
Record high67° (2022)
Record low21° (2019)
Mon, 0250° / 41°0.13Climate normal
50 °Climate normal

Decker, Monday, 2 November

Climate normal for this date — 60-year average.

Average high50°
Average low41°
Average precipitation0.13 in
Chance of precipitation42%
Record high66° (1990)
Record low23° (1991)
Tue, 0349° / 40°0.06Climate normal
49 °Climate normal

Decker, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°
Average low40°
Average precipitation0.06 in
Chance of precipitation28%
Record high64° (1978)
Record low20° (1991)
Wed, 0449° / 41°0.08Climate normal
49 °Climate normal

Decker, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low41°
Average precipitation0.08 in
Chance of precipitation33%
Record high67° (2020)
Record low18° (1991)
Thu, 0549° / 41°0.11Climate normal
49 °Climate normal

Decker, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high49°
Average low41°
Average precipitation0.11 in
Chance of precipitation30%
Record high68° (2020)
Record low23° (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 Decker, 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 Decker, 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.