As of 06:31 CDT

Weather in Neptune, IA

46°Current weather

Neptune, Sunday, 25 October, 06:31

Overcast. Feels like 43°. High 60°, low 46°.

Pressure30.39 inHg
Wind5.7 mph NE
Humidity87%
Visibility6.2 mi
Dew point43°

Monthly outlook for Neptune, IA: average high 60.6°, average low 47°. That is 4.2° above the climate normal for October. Precipitation is expected on 7 days (about 1.7 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 28 October (69.4°), the coolest 4 November (37.3°).

60.6°/47°
Average high / low
+4.2°
Above normal
7 / 3
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
25 October – 3 November62.5°54.5°+4.4°
4 November – 13 November57.5°48.6°+5°
14 November – 23 Novemberat normal44.6°—

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).

Mon, 2656° / 44°0.37Rain
56 °Rain

Neptune, Monday, 26 October

Rain. High 56°, low 44°.

Pressure30.30 inHg
Wind9.9 mph NE
Humidity78%
Visibility6.2 mi
Dew point43°
Tue, 2761° / 46°0.06Light rain
61 °Light rain

Neptune, Tuesday, 27 October

Light rain. High 61°, low 46°.

Pressure30.09 inHg
Wind5.1 mph SW
Humidity68%
Visibility6.2 mi
Dew point41°
Wed, 2869° / 55°0.04Light rain
69 °Light rain

Neptune, Wednesday, 28 October

Light rain. High 69°, low 55°.

Pressure29.97 inHg
Wind7.8 mph S
Humidity72%
Visibility6.2 mi
Dew point57°
Thu, 2967° / 49°0Clear
67 °Clear

Neptune, Thursday, 29 October

Clear. High 67°, low 49°.

Pressure30.12 inHg
Wind6 mph E
Humidity55%
Visibility—
Dew point46°
Fri, 3066° / 53°0.11Light rain
66 °Light rain

Neptune, Friday, 30 October

Light rain. High 66°, low 53°.

Pressure30.12 inHg
Wind8.8 mph E
Humidity70%
Visibility—
Dew point54°
Sat, 3161° / 57°0.34Rain
61 °Rain

Neptune, Saturday, 31 October

Rain. High 61°, low 57°.

Pressure29.97 inHg
Wind13.5 mph S
Humidity83%
Visibility—
Dew point55°
Sun, 0168° / 55°0.01Light rain
68 °Light rain

Neptune, Sunday, 1 November

Light rain. High 68°, low 55°.

Pressure29.91 inHg
Wind9.9 mph SE
Humidity69%
Visibility—
Dew point54°
Mon, 0265° / 52°0.15Light rain
65 °Light rain

Neptune, Monday, 2 November

Light rain. High 65°, low 52°.

Pressure29.53 inHg
Wind22.3 mph NW
Humidity87%
Visibility—
Dew point58°
Tue, 0350° / 42°0Overcast
50 °Overcast

Neptune, Tuesday, 3 November

Overcast. High 50°, low 42°.

Pressure29.94 inHg
Wind22.5 mph NW
Humidity44%
Visibility—
Dew point27°
Wed, 0456° / 37°0Clear
56 °Clear

Neptune, Wednesday, 4 November

Clear. High 56°, low 37°.

Pressure29.97 inHg
Wind8.2 mph NW
Humidity38%
Visibility—
Dew point26°
Thu, 0562° / 44°0Mostly clear
62 °Mostly clear

Neptune, Thursday, 5 November

Mostly clear. High 62°, low 44°.

Pressure29.91 inHg
Wind8.8 mph NW
Humidity48%
Visibility—
Dew point38°
Fri, 0667° / 46°0Overcast
67 °Overcast

Neptune, Friday, 6 November

Overcast. High 67°, low 46°.

Pressure29.71 inHg
Wind11.8 mph SW
Humidity39%
Visibility—
Dew point34°
Sat, 0751° / 41°0Overcast
51 °Overcast

Neptune, Saturday, 7 November

Overcast. High 51°, low 41°.

Pressure29.83 inHg
Wind10.7 mph E
Humidity40%
Visibility—
Dew point25°
Sun, 0853° / 39°0.03Light rain
53 °Light rain

Neptune, Sunday, 8 November

Light rain. High 53°, low 39°.

Pressure29.77 inHg
Wind15.3 mph SE
Humidity49%
Visibility—
Dew point31°
Mon, 0956° / 45°0.21Rain
56 °Rain

Neptune, Monday, 9 November

Rain. High 56°, low 45°.

Pressure29.68 inHg
Wind17.2 mph NW
Humidity60%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1046° / 31°0.08Climate normal
46 °Climate normal

Neptune, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high46°
Average low31°
Average precipitation0.08 in
Chance of precipitation27%
Record high72° (2012)
Record low11° (2018)
Wed, 1145° / 29°0.07Climate normal
45 °Climate normal

Neptune, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high45°
Average low29°
Average precipitation0.07 in
Chance of precipitation17%
Record high67° (1964)
Record low4° (1986)
Thu, 1244° / 29°0.05Climate normal
44 °Climate normal

Neptune, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high44°
Average low29°
Average precipitation0.05 in
Chance of precipitation22%
Record high67° (1999)
Record low6° (2019)
Fri, 1346° / 30°0.04Climate normal
46 °Climate normal

Neptune, Friday, 13 November

Climate normal for this date — 60-year average.

Average high46°
Average low30°
Average precipitation0.04 in
Chance of precipitation22%
Record high73° (1999)
Record low3° (1986)
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)

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.