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
Period
Forecast high
Normal
Difference
25 October – 3 November
62.5°
54.5°
+4.4°
4 November – 13 November
57.5°
48.6°
+5°
14 November – 23 November
at normal
44.6°
—
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°0.37
56 °
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°0.06
61 °
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°0.04
69 °
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°0
67 °
Neptune, Thursday, 29 October
Clear. High 67°, low 49°.
Pressure30.12 inHg
Wind6 mph E
Humidity55%
Visibility—
Dew point46°
Fri, 3066° / 53°0.11
66 °
Neptune, Friday, 30 October
Light rain. High 66°, low 53°.
Pressure30.12 inHg
Wind8.8 mph E
Humidity70%
Visibility—
Dew point54°
Sat, 3161° / 57°0.34
61 °
Neptune, Saturday, 31 October
Rain. High 61°, low 57°.
Pressure29.97 inHg
Wind13.5 mph S
Humidity83%
Visibility—
Dew point55°
Sun, 0168° / 55°0.01
68 °
Neptune, Sunday, 1 November
Light rain. High 68°, low 55°.
Pressure29.91 inHg
Wind9.9 mph SE
Humidity69%
Visibility—
Dew point54°
Mon, 0265° / 52°0.15
65 °
Neptune, Monday, 2 November
Light rain. High 65°, low 52°.
Pressure29.53 inHg
Wind22.3 mph NW
Humidity87%
Visibility—
Dew point58°
Tue, 0350° / 42°0
50 °
Neptune, Tuesday, 3 November
Overcast. High 50°, low 42°.
Pressure29.94 inHg
Wind22.5 mph NW
Humidity44%
Visibility—
Dew point27°
Wed, 0456° / 37°0
56 °
Neptune, Wednesday, 4 November
Clear. High 56°, low 37°.
Pressure29.97 inHg
Wind8.2 mph NW
Humidity38%
Visibility—
Dew point26°
Thu, 0562° / 44°0
62 °
Neptune, Thursday, 5 November
Mostly clear. High 62°, low 44°.
Pressure29.91 inHg
Wind8.8 mph NW
Humidity48%
Visibility—
Dew point38°
Fri, 0667° / 46°0
67 °
Neptune, Friday, 6 November
Overcast. High 67°, low 46°.
Pressure29.71 inHg
Wind11.8 mph SW
Humidity39%
Visibility—
Dew point34°
Sat, 0751° / 41°0
51 °
Neptune, Saturday, 7 November
Overcast. High 51°, low 41°.
Pressure29.83 inHg
Wind10.7 mph E
Humidity40%
Visibility—
Dew point25°
Sun, 0853° / 39°0.03
53 °
Neptune, Sunday, 8 November
Light rain. High 53°, low 39°.
Pressure29.77 inHg
Wind15.3 mph SE
Humidity49%
Visibility—
Dew point31°
Mon, 0956° / 45°0.21
56 °
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°0.08
46 °
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°0.07
45 °
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°0.05
44 °
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°0.04
46 °
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°0.02
46 °
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°0.06
47 °
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°0.08
47 °
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°0.07
46 °
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°0.07
46 °
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°0.08
45 °
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°0.07
43 °
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°0.04
42 °
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°0.03
42 °
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°0.04
41 °
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.