As of 07:28 CDT

Weather in Watertown, SD

39°

Watertown, Thursday, 22 October, 07:28

Clear. Feels like 39°. High 75°, low 39°.

Pressure30.18 inHg

Wind0 mph N

Humidity87%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

Monthly outlook for Watertown, SD: average high 57.3°, average low 40.8°. That is 4.3° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 22 October (75.1°), the coolest 28 October (36.4°).

57.3°/40.8°

Average high / low

+4.3°

Above normal

4 / 3

Wet days / normal

1.2 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
22 October – 31 October	56.9°	51.3°	+3.1°
1 November – 10 November	58°	45.2°	+7.1°
11 November – 20 November	at normal	39.3°	—

October records over 66 years

85.5°1 October 2023All-time high

7°26 October 2020All-time low

Fri, 2371° / 54°

0.07

71 °

Watertown, Friday, 23 October

Rain. High 71°, low 54°.

Pressure29.91 inHg

Wind11.6 mph SE

Humidity71%

Visibility6.2 mi

Dew point54°

Sat, 2463° / 44°

0.01

63 °

Watertown, Saturday, 24 October

Light rain. High 63°, low 44°.

Pressure30.21 inHg

Wind13.6 mph NW

Humidity61%

Visibility6.2 mi

Dew point41°

Sun, 2549° / 40°

49 °

Watertown, Sunday, 25 October

Overcast. High 49°, low 40°.

Pressure30.47 inHg

Wind7.3 mph E

Humidity50%

Visibility6.2 mi

Dew point29°

Mon, 2646° / 42°

0.77

46 °

Watertown, Monday, 26 October

Rain. High 46°, low 42°.

Pressure30.47 inHg

Wind16 mph E

Humidity92%

Visibility—

Dew point40°

Tue, 2759° / 42°

0.34

59 °

Watertown, Tuesday, 27 October

Rain. High 59°, low 42°.

Pressure30.00 inHg

Wind14.1 mph E

Humidity91%

Visibility—

Dew point51°

Wed, 2856° / 36°

56 °

Watertown, Wednesday, 28 October

Overcast. High 56°, low 36°.

Pressure30.12 inHg

Wind10.2 mph NE

Humidity64%

Visibility—

Dew point39°

Thu, 2945° / 39°

45 °

Watertown, Thursday, 29 October

Overcast. High 45°, low 39°.

Pressure30.12 inHg

Wind12 mph E

Humidity60%

Visibility—

Dew point30°

Fri, 3051° / 40°

0.05

51 °

Watertown, Friday, 30 October

Light rain. High 51°, low 40°.

Pressure29.85 inHg

Wind8.5 mph W

Humidity84%

Visibility—

Dew point41°

Sat, 3155° / 39°

55 °

Watertown, Saturday, 31 October

Clear. High 55°, low 39°.

Pressure29.77 inHg

Wind15.8 mph W

Humidity41%

Visibility—

Dew point29°

Sun, 0159° / 39°

59 °

Watertown, Sunday, 1 November

Clear. High 59°, low 39°.

Pressure30.00 inHg

Wind11.3 mph NW

Humidity39%

Visibility—

Dew point30°

Mon, 0258° / 40°

58 °

Watertown, Monday, 2 November

Overcast. High 58°, low 40°.

Pressure30.27 inHg

Wind7.3 mph S

Humidity37%

Visibility—

Dew point28°

Tue, 0356° / 40°

56 °

Watertown, Tuesday, 3 November

Overcast. High 56°, low 40°.

Pressure30.36 inHg

Wind12.2 mph S

Humidity48%

Visibility—

Dew point33°

Wed, 0455° / 39°

55 °

Watertown, Wednesday, 4 November

Partly cloudy. High 55°, low 39°.

Pressure30.33 inHg

Wind17.9 mph S

Humidity35%

Visibility—

Dew point25°

Thu, 0556° / 39°

56 °

Watertown, Thursday, 5 November

Overcast. High 56°, low 39°.

Pressure30.21 inHg

Wind17.4 mph S

Humidity36%

Visibility—

Dew point25°

Fri, 0664° / 40°

64 °

Watertown, Friday, 6 November

Partly cloudy. High 64°, low 40°.

Pressure30.09 inHg

Wind12.7 mph S

Humidity40%

Visibility—

Dew point33°

From day 17 onward the outlook is built from 60-year climate statistics

Sat, 0746° / 31°

0.02

46 °

Watertown, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high46°

Average low31°

Average precipitation0.02 in

Chance of precipitation12%

Record high69° (2020)

Record low2° (1991)

Sun, 0845° / 31°

0.06

45 °

Watertown, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.06 in

Chance of precipitation22%

Record high69° (1999)

Record low7° (2003)

Mon, 0942° / 30°

0.08

42 °

Watertown, Monday, 9 November

Climate normal for this date — 60-year average.

Average high42°

Average low30°

Average precipitation0.08 in

Chance of precipitation20%

Record high65° (1999)

Record low11° (2018)

Tue, 1040° / 27°

0.06

40 °

Watertown, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high40°

Average low27°

Average precipitation0.06 in

Chance of precipitation25%

Record high61° (2016)

Record low6° (1986)

Wed, 1139° / 26°

0.02

39 °

Watertown, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high39°

Average low26°

Average precipitation0.02 in

Chance of precipitation15%

Record high62° (2005)

Record low4° (1986)

Thu, 1239° / 26°

0.06

39 °

Watertown, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high39°

Average low26°

Average precipitation0.06 in

Chance of precipitation20%

Record high63° (1999)

Record low-1° (1966)

Fri, 1341° / 28°

0.03

41 °

Watertown, Friday, 13 November

Climate normal for this date — 60-year average.

Average high41°

Average low28°

Average precipitation0.03 in

Chance of precipitation23%

Record high67° (1999)

Record low2° (1986)

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)

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.