Monthly outlook for Watertown, SD: average high 54.8°, average low 41.5°. That is 5.5° above the climate normal for October. Precipitation is expected on 3 days (about 1.2 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 1 November (63°), the coolest 6 November (28.8°).
54.8°/41.5°
Average high / low
+5.5°
Above normal
3 / 3
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
54.7°
47.3°
+4.1°
8 November – 17 November
55.2°
40.8°
+8°
18 November – 27 November
at normal
35.3°
—
October records over 66 years
85.5°1 October 2023All-time high
7°26 October 2020All-time low
Fri, 3054° / 37°0
54 °
Watertown, Friday, 30 October
Partly cloudy. High 54°, low 37°.
Pressure30.27 inHg
Wind8.6 mph SE
Humidity64%
Visibility6.2 mi
Dew point39°
Sat, 3158° / 45°0.04
58 °
Watertown, Saturday, 31 October
Light rain. High 58°, low 45°.
Pressure30.18 inHg
Wind9.1 mph SE
Humidity94%
Visibility6.2 mi
Dew point49°
Sun, 0163° / 48°0
63 °
Watertown, Sunday, 1 November
Overcast. High 63°, low 48°.
Pressure30.15 inHg
Wind10.9 mph S
Humidity79%
Visibility6.2 mi
Dew point52°
Mon, 0261° / 56°1.04
61 °
Watertown, Monday, 2 November
Heavy rain. High 61°, low 56°.
Pressure29.56 inHg
Wind19.3 mph SE
Humidity95%
Visibility2.3 mi
Dew point58°
Tue, 0354° / 44°0.08
54 °
Watertown, Tuesday, 3 November
Light rain. High 54°, low 44°.
Pressure29.80 inHg
Wind20.4 mph NW
Humidity78%
Visibility—
Dew point44°
Wed, 0451° / 42°0.04
51 °
Watertown, Wednesday, 4 November
Light rain. High 51°, low 42°.
Pressure29.88 inHg
Wind15 mph NW
Humidity61%
Visibility—
Dew point34°
Thu, 0550° / 35°0
50 °
Watertown, Thursday, 5 November
Clear. High 50°, low 35°.
Pressure29.94 inHg
Wind10.2 mph N
Humidity60%
Visibility—
Dew point35°
Fri, 0649° / 29°0
49 °
Watertown, Friday, 6 November
Clear. High 49°, low 29°.
Pressure30.00 inHg
Wind14.9 mph S
Humidity55%
Visibility—
Dew point28°
Sat, 0756° / 41°0
56 °
Watertown, Saturday, 7 November
Clear. High 56°, low 41°.
Pressure29.94 inHg
Wind12.9 mph S
Humidity60%
Visibility—
Dew point39°
Sun, 0855° / 40°0
55 °
Watertown, Sunday, 8 November
Overcast. High 55°, low 40°.
Pressure29.91 inHg
Wind6.8 mph W
Humidity59%
Visibility—
Dew point37°
Mon, 0957° / 39°0
57 °
Watertown, Monday, 9 November
Partly cloudy. High 57°, low 39°.
Pressure29.88 inHg
Wind8.4 mph SW
Humidity49%
Visibility—
Dew point34°
Tue, 1060° / 44°0
60 °
Watertown, Tuesday, 10 November
Clear. High 60°, low 44°.
Pressure29.68 inHg
Wind9.4 mph S
Humidity52%
Visibility—
Dew point38°
Wed, 1153° / 48°0
53 °
Watertown, Wednesday, 11 November
Light rain. High 53°, low 48°.
Pressure29.41 inHg
Wind12.3 mph SE
Humidity88%
Visibility—
Dew point48°
Thu, 1254° / 44°0.01
54 °
Watertown, Thursday, 12 November
Light rain. High 54°, low 44°.
Pressure29.50 inHg
Wind18.1 mph W
Humidity46%
Visibility—
Dew point31°
Fri, 1353° / 39°0
53 °
Watertown, Friday, 13 November
Overcast. High 53°, low 39°.
Pressure29.83 inHg
Wind9 mph NE
Humidity40%
Visibility—
Dew point27°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1441° / 29°0.02
41 °
Watertown, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.02 in
Chance of precipitation12%
Record high65° (2025)
Record low2° (2014)
Sun, 1541° / 28°0.04
41 °
Watertown, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.04 in
Chance of precipitation17%
Record high62° (2001)
Record low10° (2014)
Mon, 1641° / 27°0.05
41 °
Watertown, Monday, 16 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.05 in
Chance of precipitation18%
Record high66° (2001)
Record low0° (2014)
Tue, 1739° / 27°0.04
39 °
Watertown, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.04 in
Chance of precipitation17%
Record high63° (2001)
Record low5° (2014)
Wed, 1838° / 26°0.06
38 °
Watertown, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.06 in
Chance of precipitation27%
Record high58° (2001)
Record low2° (1989)
Thu, 1938° / 26°0.08
38 °
Watertown, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.08 in
Chance of precipitation28%
Record high56° (2023)
Record low7° (1985)
Fri, 2036° / 24°0.04
36 °
Watertown, Friday, 20 November
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.04 in
Chance of precipitation18%
Record high60° (1962)
Record low4° (1985)
Sat, 2136° / 23°0.03
36 °
Watertown, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high36°
Average low23°
Average precipitation0.03 in
Chance of precipitation15%
Record high60° (2012)
Record low2° (1964)
Sun, 2237° / 23°0.03
37 °
Watertown, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.03 in
Chance of precipitation25%
Record high57° (2006)
Record low4° (1970)
Mon, 2335° / 23°0.03
35 °
Watertown, Monday, 23 November
Climate normal for this date — 60-year average.
Average high35°
Average low23°
Average precipitation0.03 in
Chance of precipitation20%
Record high54° (2025)
Record low-1° (1985)
Tue, 2436° / 22°0.03
36 °
Watertown, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.03 in
Chance of precipitation13%
Record high58° (1990)
Record low-4° (1985)
Wed, 2534° / 23°0.04
34 °
Watertown, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high34°
Average low23°
Average precipitation0.04 in
Chance of precipitation18%
Record high56° (1960)
Record low-1° (1977)
Thu, 2632° / 21°0.04
32 °
Watertown, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high32°
Average low21°
Average precipitation0.04 in
Chance of precipitation27%
Record high55° (1998)
Record low-2° (1985)
Fri, 2731° / 19°0.05
31 °
Watertown, 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)
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 Watertown, 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 Watertown, 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.