Weather in Watertown, SD
Watertown, Monday, 19 October, 21:29
Clear. Feels like 51°. High 65°, low 37°.
Monthly outlook for Watertown, SD: average high 57.7°, average low 39.9°. That is 3.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 22 October (70°), the coolest 28 October (21°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 57° | 53.1° | +2.1° |
| 29 October – 7 November | 58.9° | 47.3° | +6.4° |
| 8 November – 17 November | at normal | 40.8° | — |
October records over 66 years
0
Watertown, Tuesday, 20 October
Clear. High 67°, low 43°.
0Watertown, Wednesday, 21 October
Clear. High 66°, low 43°.
0Watertown, Thursday, 22 October
Clear. High 70°, low 51°.
0.01
Watertown, Friday, 23 October
Light rain. High 64°, low 57°.
0.23Watertown, Saturday, 24 October
Light rain. High 61°, low 52°.
0.01Watertown, Sunday, 25 October
Light rain. High 49°, low 38°.
0
Watertown, Monday, 26 October
Overcast. High 47°, low 33°.
0Watertown, Tuesday, 27 October
Clear. High 36°, low 25°.
0Watertown, Wednesday, 28 October
Clear. High 44°, low 21°.
0Watertown, Thursday, 29 October
Clear. High 53°, low 30°.
0
Watertown, Friday, 30 October
Mostly clear. High 59°, low 35°.
0
Watertown, Saturday, 31 October
Partly cloudy. High 63°, low 41°.
0.04Watertown, Sunday, 1 November
Light rain. High 57°, low 49°.
0Watertown, Monday, 2 November
Clear. High 63°, low 45°.
0Watertown, Tuesday, 3 November
Clear. High 59°, low 38°.
0.02Watertown, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Watertown, 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.
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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