As of 21:42 CDT

Weather in Neptune, WI

44°Current weather

Neptune, Monday, 19 October, 21:42

Clear. Feels like 44°. High 67°, low 40°.

Pressure30.36 inHg
Wind0 mph N
Humidity87%
Visibility6.2 mi
Dew point41°

Monthly outlook for Neptune, WI: average high 58°, average low 40.1°. That is 2.4° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 21 October (71.3°), the coolest 28 October (21.4°).

58°/40.1°
Average high / low
+2.4°
Above normal
1 / 4
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October60°55.1°+2.7°
29 October – 7 November54.8°50.5°+2.4°
8 November – 17 Novemberat normal44.5°—

October records over 66 years

86.4°3 October 2025All-time high
21°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — Ironton (13 mi).

Tue, 2069° / 42°0Clear
69 °Clear

Neptune, Tuesday, 20 October

Clear. High 69°, low 42°.

Pressure30.36 inHg
Wind6.4 mph S
Humidity47%
Visibility6.2 mi
Dew point43°
Wed, 2171° / 43°0Clear
71 °Clear

Neptune, Wednesday, 21 October

Clear. High 71°, low 43°.

Pressure30.24 inHg
Wind5.2 mph SW
Humidity58%
Visibility6.2 mi
Dew point49°
Thu, 2266° / 48°0Mostly clear
66 °Mostly clear

Neptune, Thursday, 22 October

Mostly clear. High 66°, low 48°.

Pressure30.33 inHg
Wind5.3 mph E
Humidity73%
Visibility6.2 mi
Dew point53°
Fri, 2362° / 52°0Overcast
62 °Overcast

Neptune, Friday, 23 October

Overcast. High 62°, low 52°.

Pressure30.36 inHg
Wind7.1 mph SE
Humidity68%
Visibility6.2 mi
Dew point48°
Sat, 2465° / 50°0Overcast
65 °Overcast

Neptune, Saturday, 24 October

Overcast. High 65°, low 50°.

Pressure30.30 inHg
Wind10.5 mph S
Humidity55%
Visibility—
Dew point44°
Sun, 2566° / 51°0Overcast
66 °Overcast

Neptune, Sunday, 25 October

Overcast. High 66°, low 51°.

Pressure30.33 inHg
Wind9.4 mph S
Humidity52%
Visibility—
Dew point46°
Mon, 2650° / 38°0Overcast
50 °Overcast

Neptune, Monday, 26 October

Overcast. High 50°, low 38°.

Pressure30.36 inHg
Wind6.4 mph NW
Humidity35%
Visibility—
Dew point21°
Tue, 2742° / 28°0Partly cloudy
42 °Partly cloudy

Neptune, Tuesday, 27 October

Partly cloudy. High 42°, low 28°.

Pressure30.39 inHg
Wind17.7 mph NW
Humidity33%
Visibility—
Dew point13°
Wed, 2841° / 21°0Clear
41 °Clear

Neptune, Wednesday, 28 October

Clear. High 41°, low 21°.

Pressure30.47 inHg
Wind10.8 mph W
Humidity33%
Visibility—
Dew point10°
Thu, 2949° / 25°0Clear
49 °Clear

Neptune, Thursday, 29 October

Clear. High 49°, low 25°.

Pressure30.18 inHg
Wind8.7 mph W
Humidity27%
Visibility—
Dew point13°
Fri, 3054° / 31°0Clear
54 °Clear

Neptune, Friday, 30 October

Clear. High 54°, low 31°.

Pressure30.03 inHg
Wind10 mph SW
Humidity46%
Visibility—
Dew point29°
Sat, 3159° / 38°0Mostly clear
59 °Mostly clear

Neptune, Saturday, 31 October

Mostly clear. High 59°, low 38°.

Pressure30.09 inHg
Wind9.4 mph S
Humidity51%
Visibility—
Dew point37°
Sun, 0159° / 47°0.03Light rain
59 °Light rain

Neptune, Sunday, 1 November

Light rain. High 59°, low 47°.

Pressure30.03 inHg
Wind8.6 mph S
Humidity53%
Visibility—
Dew point40°
Mon, 0253° / 45°0.25Rain
53 °Rain

Neptune, Monday, 2 November

Rain. High 53°, low 45°.

Pressure29.97 inHg
Wind10.2 mph N
Humidity96%
Visibility—
Dew point49°
Tue, 0355° / 41°0Partly cloudy
55 °Partly cloudy

Neptune, Tuesday, 3 November

Partly cloudy. High 55°, low 41°.

Pressure30.00 inHg
Wind9 mph N
Humidity57%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0449° / 37°0.09Climate normal
49 °Climate normal

Neptune, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.09 in
Chance of precipitation33%
Record high71° (2008)
Record low10° (1991)
Thu, 0549° / 36°0.09Climate normal
49 °Climate normal

Neptune, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation32%
Record high68° (2020)
Record low17° (1991)
Fri, 0649° / 35°0.07Climate normal
49 °Climate normal

Neptune, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation27%
Record high68° (2020)
Record low10° (1991)
Sat, 0748° / 35°0.02Climate normal
48 °Climate normal

Neptune, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.02 in
Chance of precipitation15%
Record high67° (2020)
Record low-6° (1991)
Sun, 0848° / 34°0.04Climate normal
48 °Climate normal

Neptune, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (2020)
Record low1° (1991)
Mon, 0947° / 35°0.09Climate normal
47 °Climate normal

Neptune, Monday, 9 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation33%
Record high70° (1999)
Record low17° (1991)
Tue, 1046° / 33°0.12Climate normal
46 °Climate normal

Neptune, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.12 in
Chance of precipitation37%
Record high69° (2022)
Record low11° (2017)
Wed, 1144° / 31°0.07Climate normal
44 °Climate normal

Neptune, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.07 in
Chance of precipitation32%
Record high68° (1964)
Record low11° (2019)
Thu, 1242° / 30°0.06Climate normal
42 °Climate normal

Neptune, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high42°
Average low30°
Average precipitation0.06 in
Chance of precipitation28%
Record high62° (1964)
Record low1° (2019)
Fri, 1343° / 30°0.05Climate normal
43 °Climate normal

Neptune, Friday, 13 November

Climate normal for this date — 60-year average.

Average high43°
Average low30°
Average precipitation0.05 in
Chance of precipitation22%
Record high67° (1999)
Record low5° (1986)
Sat, 1444° / 31°0.02Climate normal
44 °Climate normal

Neptune, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.02 in
Chance of precipitation22%
Record high64° (1971)
Record low15° (1986)
Sun, 1544° / 32°0.06Climate normal
44 °Climate normal

Neptune, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high44°
Average low32°
Average precipitation0.06 in
Chance of precipitation25%
Record high66° (2001)
Record low18° (2014)
Mon, 1644° / 31°0.06Climate normal
44 °Climate normal

Neptune, Monday, 16 November

Climate normal for this date — 60-year average.

Average high44°
Average low31°
Average precipitation0.06 in
Chance of precipitation27%
Record high61° (1975)
Record low18° (1989)
Tue, 1744° / 32°0.08Climate normal
44 °Climate normal

Neptune, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high44°
Average low32°
Average precipitation0.08 in
Chance of precipitation32%
Record high68° (2016)
Record low9° (2005)

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 Neptune, 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 Neptune, 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.