Monthly outlook for Clayton, SD: average high 60.6°, average low 44.4°. That is 3° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 22 October (73°), the coolest 1 November (24°).
60.6°/44.4°
Average high / low
+3°
Above normal
4 / 3
Wet days / normal
1.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
65.6°
57.1°
+4.8°
28 October – 6 November
52.2°
51.1°
+0.6°
7 November – 16 November
at normal
45.3°
—
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 (11 mi).
Mon, 1965° / 42°0
65 °
Clayton, Monday, 19 October
Partly cloudy. High 65°, low 42°.
Pressure30.24 inHg
Wind7.2 mph SE
Humidity62%
Visibility6.2 mi
Dew point45°
Tue, 2068° / 48°0
68 °
Clayton, Tuesday, 20 October
Clear. High 68°, low 48°.
Pressure30.18 inHg
Wind10.5 mph S
Humidity63%
Visibility6.2 mi
Dew point48°
Wed, 2170° / 52°0
70 °
Clayton, Wednesday, 21 October
Clear. High 70°, low 52°.
Pressure30.15 inHg
Wind3.6 mph SE
Humidity67%
Visibility6.2 mi
Dew point53°
Thu, 2273° / 54°0
73 °
Clayton, Thursday, 22 October
Clear. High 73°, low 54°.
Pressure30.15 inHg
Wind9.4 mph SE
Humidity66%
Visibility6.2 mi
Dew point55°
Fri, 2372° / 58°0.01
72 °
Clayton, Friday, 23 October
Light rain. High 72°, low 58°.
Pressure29.88 inHg
Wind21.5 mph SE
Humidity53%
Visibility—
Dew point49°
Sat, 2465° / 47°0.2
65 °
Clayton, Saturday, 24 October
Light rain. High 65°, low 47°.
Pressure30.24 inHg
Wind17.8 mph S
Humidity53%
Visibility—
Dew point40°
Sun, 2557° / 40°0
57 °
Clayton, Sunday, 25 October
Clear. High 57°, low 40°.
Pressure30.45 inHg
Wind13.2 mph SE
Humidity33%
Visibility—
Dew point24°
Mon, 2659° / 47°0.03
59 °
Clayton, Monday, 26 October
Light rain. High 59°, low 47°.
Pressure30.09 inHg
Wind11.3 mph S
Humidity79%
Visibility—
Dew point51°
Tue, 2757° / 52°0.2
57 °
Clayton, Tuesday, 27 October
Light rain. High 57°, low 52°.
Pressure30.03 inHg
Wind18.5 mph S
Humidity88%
Visibility—
Dew point52°
Wed, 2867° / 53°0.01
67 °
Clayton, Wednesday, 28 October
Light rain. High 67°, low 53°.
Pressure29.65 inHg
Wind17.6 mph S
Humidity36%
Visibility—
Dew point36°
Thu, 2961° / 45°0
61 °
Clayton, Thursday, 29 October
Clear. High 61°, low 45°.
Pressure29.80 inHg
Wind12.1 mph NW
Humidity37%
Visibility—
Dew point30°
Fri, 3056° / 35°0.27
56 °
Clayton, Friday, 30 October
Snow. High 56°, low 35°.
Pressure29.44 inHg
Wind22.2 mph W
Humidity68%
Visibility—
Dew point45°
Sat, 3134° / 32°0.74
34 °
Clayton, Saturday, 31 October
Snow. High 34°, low 32°.
Pressure29.71 inHg
Wind31.2 mph NW
Humidity97%
Visibility—
Dew point32°
Sun, 0139° / 24°0
39 °
Clayton, Sunday, 1 November
Clear. High 39°, low 24°.
Pressure30.27 inHg
Wind13.6 mph W
Humidity89%
Visibility—
Dew point31°
Mon, 0256° / 36°0
56 °
Clayton, Monday, 2 November
Overcast. High 56°, low 36°.
Pressure29.88 inHg
Wind18.7 mph S
Humidity64%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0350° / 34°0.04
50 °
Clayton, 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 °
Clayton, 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 °
Clayton, 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 °
Clayton, 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 °
Clayton, 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 °
Clayton, 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 °
Clayton, 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 °
Clayton, 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)
Wed, 1143° / 27°0.04
43 °
Clayton, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.04 in
Chance of precipitation17%
Record high68° (2005)
Record low-7° (1986)
Thu, 1243° / 27°0.05
43 °
Clayton, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low27°
Average precipitation0.05 in
Chance of precipitation25%
Record high68° (2005)
Record low3° (1966)
Fri, 1345° / 28°0.04
45 °
Clayton, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.04 in
Chance of precipitation20%
Record high70° (1999)
Record low-12° (1986)
Sat, 1445° / 30°0.02
45 °
Clayton, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.02 in
Chance of precipitation17%
Record high73° (2025)
Record low6° (2014)
Sun, 1545° / 29°0.06
45 °
Clayton, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high45°
Average low29°
Average precipitation0.06 in
Chance of precipitation22%
Record high66° (2001)
Record low0° (2000)
Mon, 1645° / 28°0.06
45 °
Clayton, Monday, 16 November
Climate normal for this date — 60-year average.
Average high45°
Average low28°
Average precipitation0.06 in
Chance of precipitation15%
Record high70° (2001)
Record low-2° (2014)
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 Clayton, 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 Clayton, 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.