Monthly outlook for Clayton, SD: average high 62.2°, average low 48.8°. That is 3.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 28 October (70.1°), the coolest 17 October (38.2°).
62.2°/48.8°
Average high / low
+3.1°
Above normal
2 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
62.6°
58°
+2.5°
25 October – 3 November
61.5°
52.8°
+4.8°
4 November – 13 November
at normal
46.9°
—
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 (11 mi).
Fri, 1651° / 39°0
51 °
Clayton, Friday, 16 October
Clear. High 51°, low 39°.
Pressure30.68 inHg
Wind15.7 mph NW
Humidity55%
Visibility6.2 mi
Dew point29°
Sat, 1762° / 38°0
62 °
Clayton, Saturday, 17 October
Clear. High 62°, low 38°.
Pressure30.33 inHg
Wind15.6 mph S
Humidity43%
Visibility6.2 mi
Dew point31°
Sun, 1866° / 46°0
66 °
Clayton, Sunday, 18 October
Clear. High 66°, low 46°.
Pressure30.09 inHg
Wind13.1 mph S
Humidity46%
Visibility6.2 mi
Dew point38°
Mon, 1964° / 47°0
64 °
Clayton, Monday, 19 October
Overcast. High 64°, low 47°.
Pressure30.12 inHg
Wind8.3 mph SE
Humidity61%
Visibility6.2 mi
Dew point44°
Tue, 2067° / 49°0
67 °
Clayton, Tuesday, 20 October
Clear. High 67°, low 49°.
Pressure30.12 inHg
Wind10.9 mph SE
Humidity59%
Visibility—
Dew point47°
Wed, 2168° / 55°0
68 °
Clayton, Wednesday, 21 October
Light rain. High 68°, low 55°.
Pressure30.03 inHg
Wind15.4 mph S
Humidity72%
Visibility—
Dew point55°
Thu, 2269° / 62°0
69 °
Clayton, Thursday, 22 October
Overcast. High 69°, low 62°.
Pressure29.91 inHg
Wind15.8 mph S
Humidity75%
Visibility—
Dew point58°
Fri, 2365° / 59°0.31
65 °
Clayton, Friday, 23 October
Rain. High 65°, low 59°.
Pressure29.74 inHg
Wind23.1 mph SE
Humidity87%
Visibility—
Dew point56°
Sat, 2462° / 50°0.02
62 °
Clayton, Saturday, 24 October
Light rain. High 62°, low 50°.
Pressure30.03 inHg
Wind24.5 mph S
Humidity43%
Visibility—
Dew point38°
Sun, 2558° / 43°0
58 °
Clayton, Sunday, 25 October
Overcast. High 58°, low 43°.
Pressure30.50 inHg
Wind7.3 mph W
Humidity33%
Visibility—
Dew point24°
Mon, 2655° / 49°0.03
55 °
Clayton, Monday, 26 October
Light rain. High 55°, low 49°.
Pressure30.30 inHg
Wind13.3 mph SE
Humidity68%
Visibility—
Dew point43°
Tue, 2769° / 55°0.01
69 °
Clayton, Tuesday, 27 October
Light rain. High 69°, low 55°.
Pressure30.00 inHg
Wind14 mph S
Humidity58%
Visibility—
Dew point51°
Wed, 2870° / 53°0
70 °
Clayton, Wednesday, 28 October
Overcast. High 70°, low 53°.
Pressure29.97 inHg
Wind16.2 mph S
Humidity57%
Visibility—
Dew point49°
Thu, 2960° / 46°0
60 °
Clayton, Thursday, 29 October
Overcast. High 60°, low 46°.
Pressure30.18 inHg
Wind22 mph NW
Humidity40%
Visibility—
Dew point33°
Fri, 3057° / 42°0
57 °
Clayton, Friday, 30 October
Clear. High 57°, low 42°.
Pressure30.45 inHg
Wind11.1 mph N
Humidity25%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3152° / 35°0.06
52 °
Clayton, 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 °
Clayton, 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 °
Clayton, 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 °
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)
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.