Monthly outlook for Spencer, SD: average high 65.1°, average low 48.9°. That is 3.9° above the climate normal for October. Precipitation is expected on 5 days (about 1.9 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 21 October (77°), the coolest 14 October (38.8°).
65.1°/48.9°
Average high / low
+3.9°
Above normal
5 / 3
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
65.6°
59.2°
+3.6°
22 October – 31 October
64.3°
54.7°
+5.3°
1 November – 10 November
at normal
48.9°
—
October records over 66 years
91.6°3 October 2025All-time high
7.5°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Bridgewater (13 mi).
Tue, 1359° / 43°0.01
59 °
Spencer, Tuesday, 13 October
Light rain. High 59°, low 43°.
Pressure30.03 inHg
Wind8.2 mph N
Humidity59%
Visibility6.2 mi
Dew point41°
Wed, 1460° / 39°0
60 °
Spencer, Wednesday, 14 October
Mostly clear. High 60°, low 39°.
Pressure30.24 inHg
Wind5.7 mph N
Humidity56%
Visibility6.2 mi
Dew point40°
Thu, 1562° / 48°0.04
62 °
Spencer, Thursday, 15 October
Light rain. High 62°, low 48°.
Pressure30.24 inHg
Wind8.8 mph NW
Humidity59%
Visibility6.2 mi
Dew point43°
Fri, 1655° / 42°0
55 °
Spencer, Friday, 16 October
Clear. High 55°, low 42°.
Pressure30.74 inHg
Wind10.8 mph NW
Humidity53%
Visibility6.2 mi
Dew point31°
Sat, 1764° / 41°0
64 °
Spencer, Saturday, 17 October
Clear. High 64°, low 41°.
Pressure30.21 inHg
Wind17.9 mph S
Humidity35%
Visibility—
Dew point29°
Sun, 1870° / 47°0
70 °
Spencer, Sunday, 18 October
Clear. High 70°, low 47°.
Pressure29.85 inHg
Wind15.8 mph S
Humidity35%
Visibility—
Dew point34°
Mon, 1970° / 51°0
70 °
Spencer, Monday, 19 October
Overcast. High 70°, low 51°.
Pressure30.06 inHg
Wind10.3 mph NE
Humidity33%
Visibility—
Dew point36°
Tue, 2070° / 48°0
70 °
Spencer, Tuesday, 20 October
Clear. High 70°, low 48°.
Pressure30.03 inHg
Wind14.8 mph SE
Humidity60%
Visibility—
Dew point50°
Wed, 2177° / 57°0.06
77 °
Spencer, Wednesday, 21 October
Light rain. High 77°, low 57°.
Pressure29.91 inHg
Wind21.3 mph S
Humidity55%
Visibility—
Dew point55°
Thu, 2268° / 65°0.3
68 °
Spencer, Thursday, 22 October
Light rain. High 68°, low 65°.
Pressure29.97 inHg
Wind18.4 mph S
Humidity86%
Visibility—
Dew point63°
Fri, 2367° / 63°0.89
67 °
Spencer, Friday, 23 October
Heavy rain. High 67°, low 63°.
Pressure30.00 inHg
Wind20.1 mph SE
Humidity81%
Visibility—
Dew point60°
Sat, 2465° / 50°0.59
65 °
Spencer, Saturday, 24 October
Heavy rain. High 65°, low 50°.
Pressure29.50 inHg
Wind29.2 mph NW
Humidity52%
Visibility—
Dew point44°
Sun, 2557° / 46°0
57 °
Spencer, Sunday, 25 October
Clear. High 57°, low 46°.
Pressure30.33 inHg
Wind24.4 mph NW
Humidity43%
Visibility—
Dew point31°
Mon, 2667° / 44°0
67 °
Spencer, Monday, 26 October
Clear. High 67°, low 44°.
Pressure30.21 inHg
Wind12.8 mph W
Humidity41%
Visibility—
Dew point37°
Tue, 2762° / 47°0
62 °
Spencer, Tuesday, 27 October
Clear. High 62°, low 47°.
Pressure30.18 inHg
Wind15.8 mph N
Humidity46%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2854° / 37°0.02
54 °
Spencer, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high54°
Average low37°
Average precipitation0.02 in
Chance of precipitation13%
Record high75° (2024)
Record low20° (2017)
Thu, 2953° / 37°0.07
53 °
Spencer, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.07 in
Chance of precipitation22%
Record high70° (1978)
Record low20° (1991)
Fri, 3052° / 37°0.13
52 °
Spencer, Friday, 30 October
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.13 in
Chance of precipitation28%
Record high72° (1965)
Record low17° (1991)
Sat, 3152° / 35°0.06
52 °
Spencer, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.06 in
Chance of precipitation20%
Record high74° (1990)
Record low13° (2002)
Sun, 0151° / 35°0.05
51 °
Spencer, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.05 in
Chance of precipitation17%
Record high72° (1990)
Record low14° (2002)
Mon, 0250° / 35°0.04
50 °
Spencer, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.04 in
Chance of precipitation17%
Record high74° (2005)
Record low10° (1991)
Tue, 0350° / 34°0.04
50 °
Spencer, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.04 in
Chance of precipitation20%
Record high73° (1978)
Record low5° (1991)
Wed, 0450° / 32°0.01
50 °
Spencer, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.01 in
Chance of precipitation12%
Record high74° (2020)
Record low-13° (1991)
Thu, 0550° / 33°0.04
50 °
Spencer, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.04 in
Chance of precipitation18%
Record high74° (2001)
Record low9° (1990)
Fri, 0649° / 33°0.03
49 °
Spencer, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.03 in
Chance of precipitation17%
Record high77° (2020)
Record low4° (1991)
Sat, 0749° / 32°0.03
49 °
Spencer, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.03 in
Chance of precipitation10%
Record high74° (2020)
Record low-10° (1991)
Sun, 0848° / 32°0.06
48 °
Spencer, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.06 in
Chance of precipitation17%
Record high76° (1999)
Record low1° (1991)
Mon, 0946° / 32°0.13
46 °
Spencer, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.13 in
Chance of precipitation23%
Record high71° (1999)
Record low12° (2018)
Tue, 1044° / 28°0.05
44 °
Spencer, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.05 in
Chance of precipitation20%
Record high65° (2016)
Record low2° (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 Spencer, SD 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, SD 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.