Monthly outlook for Castlewood, SD: average high 40.5°, average low 27.7°. That is 1.6° above the climate normal for November. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 11 November (53.7°), the coolest 23 November (8.6°).
40.5°/27.7°
Average high / low
+1.6°
Above normal
2 / 3
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 November – 20 November
45.3°
39.3°
+3.3°
21 November – 30 November
32.5°
33.5°
-0.6°
1 December – 10 December
at normal
28.7°
—
November records over 66 years
71.6°6 November 2020All-time high
-7.1°27 November 2014All-time low
Climate normals and records are computed from the nearest reference point — Watertown (14 mi).
Thu, 1238° / 21°0
38 °
Castlewood, Thursday, 12 November
Overcast. High 38°, low 21°.
Pressure30.30 inHg
Wind5.8 mph N
Humidity76%
Visibility6.2 mi
Dew point25°
Fri, 1339° / 25°0
39 °
Castlewood, Friday, 13 November
Clear. High 39°, low 25°.
Pressure30.24 inHg
Wind4 mph SE
Humidity77%
Visibility6.2 mi
Dew point25°
Sat, 1442° / 26°0
42 °
Castlewood, Saturday, 14 November
Clear. High 42°, low 26°.
Pressure30.15 inHg
Wind10.1 mph SE
Humidity70%
Visibility6.2 mi
Dew point27°
Sun, 1549° / 36°0
49 °
Castlewood, Sunday, 15 November
Clear. High 49°, low 36°.
Pressure30.24 inHg
Wind11.9 mph S
Humidity59%
Visibility—
Dew point31°
Mon, 1648° / 38°0
48 °
Castlewood, Monday, 16 November
Partly cloudy. High 48°, low 38°.
Pressure30.24 inHg
Wind14.7 mph S
Humidity58%
Visibility—
Dew point32°
Tue, 1749° / 38°0
49 °
Castlewood, Tuesday, 17 November
Partly cloudy. High 49°, low 38°.
Pressure30.09 inHg
Wind18.5 mph S
Humidity61%
Visibility—
Dew point33°
Wed, 1845° / 43°0.06
45 °
Castlewood, Wednesday, 18 November
Light rain. High 45°, low 43°.
Pressure29.83 inHg
Wind18.8 mph S
Humidity71%
Visibility—
Dew point35°
Thu, 1949° / 39°0.28
49 °
Castlewood, Thursday, 19 November
Rain. High 49°, low 39°.
Pressure29.83 inHg
Wind12.3 mph NW
Humidity60%
Visibility—
Dew point35°
Fri, 2040° / 31°0
40 °
Castlewood, Friday, 20 November
Partly cloudy. High 40°, low 31°.
Pressure30.24 inHg
Wind17.4 mph N
Humidity61%
Visibility—
Dew point27°
Sat, 2134° / 24°0
34 °
Castlewood, Saturday, 21 November
Overcast. High 34°, low 24°.
Pressure30.24 inHg
Wind17.6 mph N
Humidity56%
Visibility—
Dew point19°
Sun, 2222° / 12°0
22 °
Castlewood, Sunday, 22 November
Overcast. High 22°, low 12°.
Pressure30.50 inHg
Wind19 mph N
Humidity43%
Visibility—
Dew point-2°
Mon, 2322° / 9°0
22 °
Castlewood, Monday, 23 November
Overcast. High 22°, low 9°.
Pressure30.45 inHg
Wind11.1 mph NW
Humidity33%
Visibility—
Dew point-7°
Tue, 2437° / 18°0
37 °
Castlewood, Tuesday, 24 November
Overcast. High 37°, low 18°.
Pressure30.03 inHg
Wind7.2 mph S
Humidity34%
Visibility—
Dew point6°
Wed, 2541° / 28°0
41 °
Castlewood, Wednesday, 25 November
Overcast. High 41°, low 28°.
Pressure29.91 inHg
Wind5.3 mph NW
Humidity46%
Visibility—
Dew point19°
Thu, 2638° / 26°0
38 °
Castlewood, Thursday, 26 November
Overcast. High 38°, low 26°.
Pressure30.15 inHg
Wind7.2 mph N
Humidity55%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2731° / 19°0.05
31 °
Castlewood, Friday, 27 November
Climate normal for this date — 60-year average.
Average high31°
Average low19°
Average precipitation0.05 in
Chance of precipitation28%
Record high58° (1998)
Record low-7° (2014)
Sat, 2831° / 19°0.06
31 °
Castlewood, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high31°
Average low19°
Average precipitation0.06 in
Chance of precipitation20%
Record high56° (1998)
Record low-6° (1985)
Sun, 2932° / 20°0.03
32 °
Castlewood, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high32°
Average low20°
Average precipitation0.03 in
Chance of precipitation17%
Record high54° (1998)
Record low-7° (1985)
Mon, 3031° / 20°0.04
31 °
Castlewood, Monday, 30 November
Climate normal for this date — 60-year average.
Average high31°
Average low20°
Average precipitation0.04 in
Chance of precipitation18%
Record high51° (1995)
Record low-7° (1964)
Tue, 0131° / 20°0.05
31 °
Castlewood, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high31°
Average low20°
Average precipitation0.05 in
Chance of precipitation28%
Record high58° (1998)
Record low-5° (2014)
Wed, 0230° / 18°0.03
30 °
Castlewood, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high30°
Average low18°
Average precipitation0.03 in
Chance of precipitation18%
Record high56° (1998)
Record low-10° (1985)
Thu, 0329° / 17°0.03
29 °
Castlewood, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high29°
Average low17°
Average precipitation0.03 in
Chance of precipitation18%
Record high56° (1998)
Record low-11° (1985)
Fri, 0431° / 17°0.03
31 °
Castlewood, Friday, 4 December
Climate normal for this date — 60-year average.
Average high31°
Average low17°
Average precipitation0.03 in
Chance of precipitation13%
Record high46° (2017)
Record low-8° (2025)
Sat, 0529° / 16°0.02
29 °
Castlewood, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high29°
Average low16°
Average precipitation0.02 in
Chance of precipitation12%
Record high46° (1979)
Record low-6° (1972)
Sun, 0627° / 14°0.01
27 °
Castlewood, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high27°
Average low14°
Average precipitation0.01 in
Chance of precipitation10%
Record high49° (2023)
Record low-16° (1972)
Mon, 0727° / 16°0.02
27 °
Castlewood, Monday, 7 December
Climate normal for this date — 60-year average.
Average high27°
Average low16°
Average precipitation0.02 in
Chance of precipitation20%
Record high50° (2023)
Record low-13° (1972)
Tue, 0828° / 16°0.03
28 °
Castlewood, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high28°
Average low16°
Average precipitation0.03 in
Chance of precipitation18%
Record high48° (2020)
Record low-11° (1972)
Wed, 0928° / 15°0.02
28 °
Castlewood, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high28°
Average low15°
Average precipitation0.02 in
Chance of precipitation15%
Record high51° (1990)
Record low-17° (1977)
Thu, 1027° / 14°0.02
27 °
Castlewood, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high27°
Average low14°
Average precipitation0.02 in
Chance of precipitation15%
Record high48° (1990)
Record low-18° (1977)
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 Castlewood, 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 Castlewood, 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.