Weather in Watertown, SD
Watertown, Tuesday, 20 October, 17:57
Clear. Feels like 67°. High 68°, low 41°.
Monthly outlook for Watertown, SD: average high 53.8°, average low 38.7°. That is 1.7° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 22 October (69.8°), the coolest 29 October (26.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 55.7° | 52.6° | +1.7° |
| 30 October – 8 November | 50.5° | 46.7° | +2.1° |
| 9 November – 18 November | at normal | 40.1° | — |
October records over 66 years
0Watertown, Wednesday, 21 October
Clear. High 67°, low 45°.
0Watertown, Thursday, 22 October
Clear. High 70°, low 43°.
0.02
Watertown, Friday, 23 October
Light rain. High 69°, low 57°.
0
Watertown, Saturday, 24 October
Overcast. High 61°, low 49°.
0.19Watertown, Sunday, 25 October
Light rain. High 49°, low 42°.
0.24Watertown, Monday, 26 October
Rain. High 43°, low 37°.
0Watertown, Tuesday, 27 October
Overcast. High 38°, low 31°.
0Watertown, Wednesday, 28 October
Overcast. High 48°, low 27°.
0Watertown, Thursday, 29 October
Clear. High 43°, low 26°.
0Watertown, Friday, 30 October
Overcast. High 46°, low 34°.
0.03Watertown, Saturday, 31 October
Light rain. High 49°, low 42°.
0Watertown, Sunday, 1 November
Overcast. High 57°, low 46°.
0Watertown, Monday, 2 November
Clear. High 48°, low 32°.
0
Watertown, Tuesday, 3 November
Partly cloudy. High 57°, low 34°.
0Watertown, Wednesday, 4 November
Overcast. High 46°, low 35°.
0.04
Watertown, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Watertown, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Watertown, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Watertown, Sunday, 8 November
Climate normal for this date — 60-year average.
0.08Watertown, Monday, 9 November
Climate normal for this date — 60-year average.
0.06Watertown, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Watertown, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Watertown, Thursday, 12 November
Climate normal for this date — 60-year average.
0.03Watertown, Friday, 13 November
Climate normal for this date — 60-year average.
0.02Watertown, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Watertown, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Watertown, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Watertown, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Watertown, Wednesday, 18 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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