As of 03:53 CDT

Weather in Neptune, WI

55°Current weather

Neptune, Thursday, 15 October, 03:53

Overcast. Feels like 54°. High 57°, low 50°.

Pressure30.15 inHg
Wind5.7 mph E
Humidity76%
Visibility6.2 mi
Dew point47°

Monthly outlook for Neptune, WI: average high 56°, average low 39°. That is 0.3° above the climate normal for October. Precipitation is expected on 1 day (about 0.8 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 23 October (66.9°), the coolest 27 October (24.8°).

56°/39°
Average high / low
+0.3°
Above normal
1 / 4
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October61.4°56.6°+2.7°
25 October – 3 November46.9°52.4°-3.1°
4 November – 13 Novemberat normal46.4°—

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).

Fri, 1651° / 40°0.02Light rain
51 °Light rain

Neptune, Friday, 16 October

Light rain. High 51°, low 40°.

Pressure30.18 inHg
Wind20.1 mph N
Humidity61%
Visibility6.2 mi
Dew point38°
Sat, 1757° / 33°0Clear
57 °Clear

Neptune, Saturday, 17 October

Clear. High 57°, low 33°.

Pressure30.47 inHg
Wind10.1 mph SW
Humidity45%
Visibility6.2 mi
Dew point31°
Sun, 1861° / 42°0Clear
61 °Clear

Neptune, Sunday, 18 October

Clear. High 61°, low 42°.

Pressure30.33 inHg
Wind14.4 mph SW
Humidity53%
Visibility6.2 mi
Dew point39°
Mon, 1962° / 42°0Overcast
62 °Overcast

Neptune, Monday, 19 October

Overcast. High 62°, low 42°.

Pressure30.33 inHg
Wind7.4 mph S
Humidity55%
Visibility—
Dew point43°
Tue, 2065° / 41°0Clear
65 °Clear

Neptune, Tuesday, 20 October

Clear. High 65°, low 41°.

Pressure30.33 inHg
Wind5.2 mph SE
Humidity49%
Visibility—
Dew point41°
Wed, 2166° / 45°0Clear
66 °Clear

Neptune, Wednesday, 21 October

Clear. High 66°, low 45°.

Pressure30.33 inHg
Wind8.7 mph S
Humidity48%
Visibility—
Dew point42°
Thu, 2265° / 48°0Overcast
65 °Overcast

Neptune, Thursday, 22 October

Overcast. High 65°, low 48°.

Pressure30.24 inHg
Wind11.6 mph S
Humidity57%
Visibility—
Dew point47°
Fri, 2367° / 53°0Overcast
67 °Overcast

Neptune, Friday, 23 October

Overcast. High 67°, low 53°.

Pressure30.09 inHg
Wind15.2 mph S
Humidity46%
Visibility—
Dew point44°
Sat, 2464° / 49°0Overcast
64 °Overcast

Neptune, Saturday, 24 October

Overcast. High 64°, low 49°.

Pressure30.03 inHg
Wind17.3 mph SW
Humidity67%
Visibility—
Dew point52°
Sun, 2551° / 38°0Mostly clear
51 °Mostly clear

Neptune, Sunday, 25 October

Mostly clear. High 51°, low 38°.

Pressure30.12 inHg
Wind15.4 mph W
Humidity42%
Visibility—
Dew point28°
Mon, 2646° / 32°0Partly cloudy
46 °Partly cloudy

Neptune, Monday, 26 October

Partly cloudy. High 46°, low 32°.

Pressure30.30 inHg
Wind13.1 mph W
Humidity36%
Visibility—
Dew point18°
Tue, 2743° / 25°0Clear
43 °Clear

Neptune, Tuesday, 27 October

Clear. High 43°, low 25°.

Pressure30.27 inHg
Wind10.7 mph W
Humidity33%
Visibility—
Dew point12°
Wed, 2854° / 28°0Overcast
54 °Overcast

Neptune, Wednesday, 28 October

Overcast. High 54°, low 28°.

Pressure29.97 inHg
Wind13.2 mph SW
Humidity55%
Visibility—
Dew point36°
Thu, 2948° / 32°0Overcast
48 °Overcast

Neptune, Thursday, 29 October

Overcast. High 48°, low 32°.

Pressure30.09 inHg
Wind10.7 mph NW
Humidity42%
Visibility—
Dew point23°
Fri, 3039° / 25°0Clear
39 °Clear

Neptune, Friday, 30 October

Clear. High 39°, low 25°.

Pressure30.53 inHg
Wind13.2 mph NW
Humidity33%
Visibility—
Dew point10°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3152° / 40°0.11Climate normal
52 °Climate normal

Neptune, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high52°
Average low40°
Average precipitation0.11 in
Chance of precipitation38%
Record high67° (2000)
Record low25° (2019)
Sun, 0151° / 38°0.19Climate normal
51 °Climate normal

Neptune, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.19 in
Chance of precipitation27%
Record high71° (2000)
Record low22° (2023)
Mon, 0250° / 38°0.08Climate normal
50 °Climate normal

Neptune, Monday, 2 November

Climate normal for this date — 60-year average.

Average high50°
Average low38°
Average precipitation0.08 in
Chance of precipitation32%
Record high69° (1990)
Record low17° (1991)
Tue, 0350° / 37°0.06Climate normal
50 °Climate normal

Neptune, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (1964)
Record low13° (1991)
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)

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.