As of 11:11 CDT

Weather in Neptune, IA

49°Current weather

Neptune, Thursday, 29 October, 11:11

Clear. Feels like 48°. High 61°, low 42°.

Pressure30.24 inHg
Wind3.4 mph NE
Humidity87%
Visibility6.2 mi
Dew point46°

Monthly outlook for Neptune, IA: average high 56.8°, average low 45.8°. That is 3.6° above the climate normal for October. Precipitation is expected on 4 days (about 2.9 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 2 November (67°), the coolest 7 November (35°).

56.8°/45.8°
Average high / low
+3.6°
Above normal
4 / 3
Wet days / normal
2.9 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
29 October – 7 November57.4°52.4°+2.8°
8 November – 17 November55.8°46.8°+5°
18 November – 27 Novemberat normal41.6°—

October records over 66 years

88.9°3 October 2025All-time high
16.5°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Kingsley (11 mi).

Fri, 3057° / 46°0Overcast
57 °Overcast

Neptune, Friday, 30 October

Overcast. High 57°, low 46°.

Pressure30.21 inHg
Wind9.6 mph E
Humidity65%
Visibility6.2 mi
Dew point44°
Sat, 3166° / 51°0.01Light rain
66 °Light rain

Neptune, Saturday, 31 October

Light rain. High 66°, low 51°.

Pressure30.18 inHg
Wind10 mph S
Humidity69%
Visibility6.2 mi
Dew point53°
Sun, 0165° / 54°0Overcast
65 °Overcast

Neptune, Sunday, 1 November

Overcast. High 65°, low 54°.

Pressure30.18 inHg
Wind7.1 mph S
Humidity73%
Visibility6.2 mi
Dew point54°
Mon, 0267° / 59°1.31Heavy rain
67 °Heavy rain

Neptune, Monday, 2 November

Heavy rain. High 67°, low 59°.

Pressure29.59 inHg
Wind20.3 mph S
Humidity92%
Visibility—
Dew point62°
Tue, 0359° / 52°0.3Rain
59 °Rain

Neptune, Tuesday, 3 November

Rain. High 59°, low 52°.

Pressure29.83 inHg
Wind18.1 mph NW
Humidity70%
Visibility—
Dew point47°
Wed, 0451° / 44°0.77Rain
51 °Rain

Neptune, Wednesday, 4 November

Rain. High 51°, low 44°.

Pressure29.91 inHg
Wind16.2 mph N
Humidity76%
Visibility—
Dew point38°
Thu, 0551° / 42°0Overcast
51 °Overcast

Neptune, Thursday, 5 November

Overcast. High 51°, low 42°.

Pressure29.88 inHg
Wind16.1 mph N
Humidity53%
Visibility—
Dew point32°
Fri, 0647° / 37°0Overcast
47 °Overcast

Neptune, Friday, 6 November

Overcast. High 47°, low 37°.

Pressure30.06 inHg
Wind11.3 mph N
Humidity55%
Visibility—
Dew point29°
Sat, 0750° / 35°0Clear
50 °Clear

Neptune, Saturday, 7 November

Clear. High 50°, low 35°.

Pressure30.27 inHg
Wind7.2 mph S
Humidity46%
Visibility—
Dew point26°
Sun, 0849° / 38°0Overcast
49 °Overcast

Neptune, Sunday, 8 November

Overcast. High 49°, low 38°.

Pressure30.27 inHg
Wind12 mph S
Humidity61%
Visibility—
Dew point33°
Mon, 0956° / 44°0Overcast
56 °Overcast

Neptune, Monday, 9 November

Overcast. High 56°, low 44°.

Pressure30.18 inHg
Wind10.8 mph S
Humidity66%
Visibility—
Dew point41°
Tue, 1060° / 43°0Clear
60 °Clear

Neptune, Tuesday, 10 November

Clear. High 60°, low 43°.

Pressure30.15 inHg
Wind9.1 mph SW
Humidity68%
Visibility—
Dew point44°
Wed, 1158° / 46°0Overcast
58 °Overcast

Neptune, Wednesday, 11 November

Overcast. High 58°, low 46°.

Pressure29.94 inHg
Wind17.5 mph S
Humidity73%
Visibility—
Dew point47°
Thu, 1256° / 51°0Light rain
56 °Light rain

Neptune, Thursday, 12 November

Light rain. High 56°, low 51°.

Pressure29.44 inHg
Wind16.4 mph S
Humidity85%
Visibility—
Dew point48°
Fri, 1357° / 48°0.44Rain
57 °Rain

Neptune, Friday, 13 November

Rain. High 57°, low 48°.

Pressure29.29 inHg
Wind18.1 mph NW
Humidity73%
Visibility—
Dew point47°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1446° / 31°0.02Climate normal
46 °Climate normal

Neptune, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high46°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high70° (2025)
Record low8° (2014)
Sun, 1547° / 30°0.06Climate normal
47 °Climate normal

Neptune, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°
Average low30°
Average precipitation0.06 in
Chance of precipitation20%
Record high70° (2001)
Record low4° (2000)
Mon, 1647° / 30°0.08Climate normal
47 °Climate normal

Neptune, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°
Average low30°
Average precipitation0.08 in
Chance of precipitation17%
Record high71° (2001)
Record low4° (2014)
Tue, 1746° / 31°0.07Climate normal
46 °Climate normal

Neptune, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high46°
Average low31°
Average precipitation0.07 in
Chance of precipitation22%
Record high67° (2001)
Record low6° (2000)
Wed, 1846° / 30°0.07Climate normal
46 °Climate normal

Neptune, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high46°
Average low30°
Average precipitation0.07 in
Chance of precipitation25%
Record high72° (1999)
Record low6° (2000)
Thu, 1945° / 30°0.08Climate normal
45 °Climate normal

Neptune, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high45°
Average low30°
Average precipitation0.08 in
Chance of precipitation25%
Record high64° (2003)
Record low7° (1978)
Fri, 2043° / 28°0.07Climate normal
43 °Climate normal

Neptune, Friday, 20 November

Climate normal for this date — 60-year average.

Average high43°
Average low28°
Average precipitation0.07 in
Chance of precipitation13%
Record high64° (2003)
Record low6° (2000)
Sat, 2142° / 26°0.04Climate normal
42 °Climate normal

Neptune, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high42°
Average low26°
Average precipitation0.04 in
Chance of precipitation10%
Record high67° (1990)
Record low-4° (2000)
Sun, 2242° / 27°0.03Climate normal
42 °Climate normal

Neptune, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high42°
Average low27°
Average precipitation0.03 in
Chance of precipitation15%
Record high60° (1974)
Record low1° (1975)
Mon, 2341° / 26°0.04Climate normal
41 °Climate normal

Neptune, Monday, 23 November

Climate normal for this date — 60-year average.

Average high41°
Average low26°
Average precipitation0.04 in
Chance of precipitation22%
Record high59° (2006)
Record low2° (1985)
Tue, 2442° / 26°0.06Climate normal
42 °Climate normal

Neptune, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high42°
Average low26°
Average precipitation0.06 in
Chance of precipitation17%
Record high64° (1990)
Record low-2° (1985)
Wed, 2541° / 26°0.02Climate normal
41 °Climate normal

Neptune, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high41°
Average low26°
Average precipitation0.02 in
Chance of precipitation18%
Record high63° (1960)
Record low3° (1993)
Thu, 2639° / 26°0.05Climate normal
39 °Climate normal

Neptune, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high39°
Average low26°
Average precipitation0.05 in
Chance of precipitation30%
Record high59° (1960)
Record low-8° (1993)
Fri, 2737° / 23°0.08Climate normal
37 °Climate normal

Neptune, Friday, 27 November

Climate normal for this date — 60-year average.

Average high37°
Average low23°
Average precipitation0.08 in
Chance of precipitation27%
Record high63° (1998)
Record low3° (1993)

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, IA 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, IA 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.