As of 18:34 CDT

Weather in Deerfield, WI

57°Current weather

Deerfield, Friday, 9 October, 18:34

Mostly clear. Feels like 57°. High 66°, low 50°.

Pressure30.03 inHg
Wind9.3 mph SE
Humidity94%
Visibility6.2 mi
Dew point55°

Monthly outlook for Deerfield, WI: average high 63.5°, average low 46.4°. That is 2.7° above the climate normal for October. Precipitation is expected on 2 days (about 1.4 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 12 October (78.6°), the coolest 18 October (26.4°).

63.5°/46.4°
Average high / low
+2.7°
Above normal
2 / 5
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October64.4°59.8°+2.6°
19 October – 28 October62.1°55.7°+3.6°
29 October – 7 Novemberat normal51.5°—

October records over 66 years

84.9°3 October 2025All-time high
21.4°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — Fort Atkinson (14 mi).

Sat, 1077° / 57°0Overcast
77 °Overcast

Deerfield, Saturday, 10 October

Overcast. High 77°, low 57°.

Pressure30.00 inHg
Wind12.1 mph S
Humidity58%
Visibility6.2 mi
Dew point58°
Sun, 1175° / 56°0Clear
75 °Clear

Deerfield, Sunday, 11 October

Clear. High 75°, low 56°.

Pressure29.91 inHg
Wind6.8 mph S
Humidity65%
Visibility6.2 mi
Dew point58°
Mon, 1279° / 62°0.01Light rain
79 °Light rain

Deerfield, Monday, 12 October

Light rain. High 79°, low 62°.

Pressure29.77 inHg
Wind10.5 mph SW
Humidity66%
Visibility6.2 mi
Dew point63°
Tue, 1367° / 61°0.02Light rain
67 °Light rain

Deerfield, Tuesday, 13 October

Light rain. High 67°, low 61°.

Pressure29.85 inHg
Wind8.3 mph N
Humidity83%
Visibility6.2 mi
Dew point60°
Wed, 1462° / 55°0Light rain
62 °Light rain

Deerfield, Wednesday, 14 October

Light rain. High 62°, low 55°.

Pressure30.12 inHg
Wind7.4 mph NE
Humidity71%
Visibility—
Dew point52°
Thu, 1566° / 51°0.68Rain
66 °Rain

Deerfield, Thursday, 15 October

Rain. High 66°, low 51°.

Pressure29.91 inHg
Wind21 mph SW
Humidity94%
Visibility—
Dew point53°
Fri, 1661° / 38°0.01Light rain
61 °Light rain

Deerfield, Friday, 16 October

Light rain. High 61°, low 38°.

Pressure29.88 inHg
Wind23.6 mph W
Humidity54%
Visibility—
Dew point32°
Sat, 1744° / 33°0Overcast
44 °Overcast

Deerfield, Saturday, 17 October

Overcast. High 44°, low 33°.

Pressure30.30 inHg
Wind22.4 mph W
Humidity47%
Visibility—
Dew point24°
Sun, 1847° / 26°0Clear
47 °Clear

Deerfield, Sunday, 18 October

Clear. High 47°, low 26°.

Pressure30.50 inHg
Wind8 mph SW
Humidity39%
Visibility—
Dew point20°
Mon, 1954° / 36°0Overcast
54 °Overcast

Deerfield, Monday, 19 October

Overcast. High 54°, low 36°.

Pressure30.39 inHg
Wind11.5 mph SW
Humidity43%
Visibility—
Dew point28°
Tue, 2060° / 38°0Mostly clear
60 °Mostly clear

Deerfield, Tuesday, 20 October

Mostly clear. High 60°, low 38°.

Pressure30.39 inHg
Wind8 mph S
Humidity43%
Visibility—
Dew point33°
Wed, 2164° / 42°0Clear
64 °Clear

Deerfield, Wednesday, 21 October

Clear. High 64°, low 42°.

Pressure30.21 inHg
Wind16.5 mph SW
Humidity43%
Visibility—
Dew point37°
Thu, 2262° / 46°0Clear
62 °Clear

Deerfield, Thursday, 22 October

Clear. High 62°, low 46°.

Pressure30.12 inHg
Wind9.9 mph SW
Humidity54%
Visibility—
Dew point42°
Fri, 2364° / 40°0Clear
64 °Clear

Deerfield, Friday, 23 October

Clear. High 64°, low 40°.

Pressure30.03 inHg
Wind8.2 mph S
Humidity38%
Visibility—
Dew point33°
Sat, 2470° / 51°0.01Light rain
70 °Light rain

Deerfield, Saturday, 24 October

Light rain. High 70°, low 51°.

Pressure29.91 inHg
Wind18 mph SW
Humidity44%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2555° / 42°0.07Climate normal
55 °Climate normal

Deerfield, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high55°
Average low42°
Average precipitation0.07 in
Chance of precipitation27%
Record high75° (1989)
Record low28° (2006)
Mon, 2654° / 41°0.1Climate normal
54 °Climate normal

Deerfield, Monday, 26 October

Climate normal for this date — 60-year average.

Average high54°
Average low41°
Average precipitation0.1 in
Chance of precipitation22%
Record high75° (1963)
Record low25° (1962)
Tue, 2754° / 41°0.07Climate normal
54 °Climate normal

Deerfield, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high54°
Average low41°
Average precipitation0.07 in
Chance of precipitation22%
Record high72° (2014)
Record low26° (1976)
Wed, 2853° / 40°0.05Climate normal
53 °Climate normal

Deerfield, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.05 in
Chance of precipitation23%
Record high68° (1974)
Record low26° (1976)
Thu, 2953° / 40°0.05Climate normal
53 °Climate normal

Deerfield, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.05 in
Chance of precipitation18%
Record high77° (2024)
Record low24° (1980)
Fri, 3055° / 41°0.09Climate normal
55 °Climate normal

Deerfield, Friday, 30 October

Climate normal for this date — 60-year average.

Average high55°
Average low41°
Average precipitation0.09 in
Chance of precipitation30%
Record high76° (2024)
Record low21° (1988)
Sat, 3153° / 41°0.09Climate normal
53 °Climate normal

Deerfield, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high53°
Average low41°
Average precipitation0.09 in
Chance of precipitation37%
Record high69° (1974)
Record low25° (2019)
Sun, 0152° / 40°0.19Climate normal
52 °Climate normal

Deerfield, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high52°
Average low40°
Average precipitation0.19 in
Chance of precipitation38%
Record high71° (2016)
Record low20° (2019)
Mon, 0251° / 39°0.12Climate normal
51 °Climate normal

Deerfield, Monday, 2 November

Climate normal for this date — 60-year average.

Average high51°
Average low39°
Average precipitation0.12 in
Chance of precipitation35%
Record high72° (1961)
Record low21° (1991)
Tue, 0351° / 38°0.05Climate normal
51 °Climate normal

Deerfield, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.05 in
Chance of precipitation18%
Record high70° (1964)
Record low16° (1991)
Wed, 0450° / 38°0.08Climate normal
50 °Climate normal

Deerfield, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high50°
Average low38°
Average precipitation0.08 in
Chance of precipitation23%
Record high69° (2008)
Record low13° (1991)
Thu, 0550° / 37°0.1Climate normal
50 °Climate normal

Deerfield, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.1 in
Chance of precipitation28%
Record high69° (2015)
Record low18° (1991)
Fri, 0649° / 36°0.08Climate normal
49 °Climate normal

Deerfield, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.08 in
Chance of precipitation30%
Record high68° (1975)
Record low18° (1991)
Sat, 0749° / 36°0.03Climate normal
49 °Climate normal

Deerfield, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.03 in
Chance of precipitation18%
Record high67° (2020)
Record low9° (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 Deerfield, 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 Deerfield, 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.