Monthly outlook for Spencer, IA: average high 62.9°, average low 46.7°. That is 2.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 12 October (87.8°), the coolest 24 October (36°).
62.9°/46.7°
Average high / low
+2.4°
Above normal
3 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
67.9°
59.6°
+4.6°
21 October – 30 October
54.6°
55.8°
-0.7°
31 October – 9 November
at normal
50.1°
—
October records over 66 years
89.1°3 October 2025All-time high
14.2°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Webb (15 mi).
Mon, 1288° / 59°0
88 °
Spencer, Monday, 12 October
Overcast. High 88°, low 59°.
Pressure29.65 inHg
Wind10.9 mph S
Humidity53%
Visibility6.2 mi
Dew point62°
Tue, 1368° / 50°0
68 °
Spencer, Tuesday, 13 October
Clear. High 68°, low 50°.
Pressure29.94 inHg
Wind7.7 mph N
Humidity60%
Visibility6.2 mi
Dew point47°
Wed, 1461° / 47°0
61 °
Spencer, Wednesday, 14 October
Overcast. High 61°, low 47°.
Pressure30.18 inHg
Wind8.5 mph NE
Humidity59%
Visibility6.2 mi
Dew point43°
Thu, 1558° / 51°0.12
58 °
Spencer, Thursday, 15 October
Light rain. High 58°, low 51°.
Pressure30.15 inHg
Wind7.8 mph N
Humidity83%
Visibility6.2 mi
Dew point50°
Fri, 1655° / 43°0
55 °
Spencer, Friday, 16 October
Clear. High 55°, low 43°.
Pressure30.65 inHg
Wind17.8 mph NW
Humidity48%
Visibility—
Dew point32°
Sat, 1756° / 39°0
56 °
Spencer, Saturday, 17 October
Clear. High 56°, low 39°.
Pressure30.33 inHg
Wind18.7 mph S
Humidity38%
Visibility—
Dew point28°
Sun, 1865° / 44°0
65 °
Spencer, Sunday, 18 October
Clear. High 65°, low 44°.
Pressure30.06 inHg
Wind19.9 mph SW
Humidity39%
Visibility—
Dew point33°
Mon, 1968° / 48°0
68 °
Spencer, Monday, 19 October
Overcast. High 68°, low 48°.
Pressure30.09 inHg
Wind11.6 mph S
Humidity45%
Visibility—
Dew point41°
Tue, 2073° / 52°0.09
73 °
Spencer, Tuesday, 20 October
Light rain. High 73°, low 52°.
Pressure29.85 inHg
Wind20.1 mph S
Humidity50%
Visibility—
Dew point48°
Wed, 2163° / 50°0.67
63 °
Spencer, Wednesday, 21 October
Rain. High 63°, low 50°.
Pressure29.74 inHg
Wind17.2 mph NW
Humidity79%
Visibility—
Dew point49°
Thu, 2256° / 46°0
56 °
Spencer, Thursday, 22 October
Partly cloudy. High 56°, low 46°.
Pressure29.88 inHg
Wind20.2 mph W
Humidity48%
Visibility—
Dew point32°
Fri, 2349° / 37°0
49 °
Spencer, Friday, 23 October
Clear. High 49°, low 37°.
Pressure30.18 inHg
Wind17.4 mph NW
Humidity48%
Visibility—
Dew point26°
Sat, 2452° / 36°0
52 °
Spencer, Saturday, 24 October
Overcast. High 52°, low 36°.
Pressure29.91 inHg
Wind18.9 mph SE
Humidity47%
Visibility—
Dew point29°
Sun, 2556° / 46°0
56 °
Spencer, Sunday, 25 October
Overcast. High 56°, low 46°.
Pressure29.71 inHg
Wind12.5 mph N
Humidity68%
Visibility—
Dew point44°
Mon, 2651° / 39°0
51 °
Spencer, Monday, 26 October
Clear. High 51°, low 39°.
Pressure30.12 inHg
Wind11.2 mph NW
Humidity56%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2755° / 39°0.09
55 °
Spencer, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.09 in
Chance of precipitation28%
Record high77° (1999)
Record low14° (2020)
Wed, 2854° / 38°0.05
54 °
Spencer, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.05 in
Chance of precipitation17%
Record high76° (2016)
Record low19° (1967)
Thu, 2955° / 38°0.08
55 °
Spencer, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high55°
Average low38°
Average precipitation0.08 in
Chance of precipitation28%
Record high79° (2024)
Record low23° (1980)
Fri, 3054° / 38°0.07
54 °
Spencer, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.07 in
Chance of precipitation32%
Record high73° (2024)
Record low20° (1991)
Sat, 3152° / 37°0.1
52 °
Spencer, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.1 in
Chance of precipitation28%
Record high73° (1968)
Record low18° (1993)
Sun, 0151° / 36°0.08
51 °
Spencer, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.08 in
Chance of precipitation22%
Record high73° (2022)
Record low20° (2002)
Mon, 0251° / 36°0.04
51 °
Spencer, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.04 in
Chance of precipitation18%
Record high74° (2022)
Record low11° (1991)
Tue, 0350° / 35°0.06
50 °
Spencer, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.06 in
Chance of precipitation18%
Record high73° (1978)
Record low4° (1991)
Wed, 0450° / 34°0.03
50 °
Spencer, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.03 in
Chance of precipitation20%
Record high70° (2020)
Record low-12° (1991)
Thu, 0550° / 34°0.06
50 °
Spencer, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2020)
Record low15° (1991)
Fri, 0650° / 35°0.04
50 °
Spencer, Friday, 6 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.04 in
Chance of precipitation23%
Record high71° (2020)
Record low4° (1991)
Sat, 0750° / 33°0.02
50 °
Spencer, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.02 in
Chance of precipitation12%
Record high71° (2001)
Record low-16° (1991)
Sun, 0849° / 33°0.04
49 °
Spencer, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.04 in
Chance of precipitation17%
Record high75° (1999)
Record low-3° (1991)
Mon, 0948° / 33°0.14
48 °
Spencer, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.14 in
Chance of precipitation27%
Record high72° (2022)
Record low15° (2018)
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 Spencer, 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 Spencer, 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.