Weather in Watertown, SD
Watertown, Sunday, 18 October, 11:12
Clear. Feels like 51°. High 64°, low 43°.
Monthly outlook for Watertown, SD: average high 55.5°, average low 40.6°. That is 2.1° above the climate normal for October. Precipitation is expected on 6 days (about 2.1 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 22 October (68.9°), the coolest 1 November (20.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 61.8° | 53.5° | +4.7° |
| 28 October – 6 November | 44.9° | 47.7° | -1.5° |
| 7 November – 16 November | at normal | 41.5° | — |
October records over 66 years
0Watertown, Monday, 19 October
Clear. High 61°, low 39°.
0Watertown, Tuesday, 20 October
Clear. High 64°, low 46°.
0Watertown, Wednesday, 21 October
Clear. High 65°, low 47°.
0Watertown, Thursday, 22 October
Clear. High 69°, low 51°.
0.09
Watertown, Friday, 23 October
Light rain. High 68°, low 55°.
0.15Watertown, Saturday, 24 October
Light rain. High 64°, low 44°.
0Watertown, Sunday, 25 October
Clear. High 50°, low 35°.
0
Watertown, Monday, 26 October
Overcast. High 58°, low 40°.
0.26Watertown, Tuesday, 27 October
Light rain. High 57°, low 49°.
0.06Watertown, Wednesday, 28 October
Light rain. High 62°, low 48°.
0
Watertown, Thursday, 29 October
Partly cloudy. High 54°, low 45°.
0.74
Watertown, Friday, 30 October
Snow. High 49°, low 35°.
0.75Watertown, Saturday, 31 October
Snow. High 34°, low 30°.
0
Watertown, Sunday, 1 November
Mostly clear. High 31°, low 20°.
0.01Watertown, Monday, 2 November
Light rain. High 40°, low 23°.
0.04Watertown, Tuesday, 3 November
Climate normal for this date — 60-year average.
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.
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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