Weather in Alpena, SD
Alpena, Wednesday, 14 October, 19:50
Overcast. Feels like 50°. High 52°, low 43°.
Monthly outlook for Alpena, SD: average high 62.9°, average low 44.7°. That is 3.1° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 21 October (75°), the coolest 17 October (37.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 October – 23 October | 63.2° | 58.6° | +2.6° |
| 24 October – 2 November | 62.5° | 53.7° | +4.8° |
| 3 November – 12 November | at normal | 47.4° | — |
October records over 66 years
0.05
Alpena, Thursday, 15 October
Rain. High 59°, low 46°.
0
Alpena, Friday, 16 October
Clear. High 51°, low 38°.
0Alpena, Saturday, 17 October
Clear. High 63°, low 38°.
0Alpena, Sunday, 18 October
Clear. High 64°, low 45°.
0Alpena, Monday, 19 October
Clear. High 64°, low 41°.
0Alpena, Tuesday, 20 October
Clear. High 69°, low 46°.
0.04Alpena, Wednesday, 21 October
Light rain. High 75°, low 56°.
0Alpena, Thursday, 22 October
Clear. High 69°, low 48°.
0.43Alpena, Friday, 23 October
Light rain. High 65°, low 52°.
0.45Alpena, Saturday, 24 October
Rain. High 54°, low 44°.
0Alpena, Sunday, 25 October
Clear. High 54°, low 39°.
0Alpena, Monday, 26 October
Clear. High 65°, low 39°.
0Alpena, Tuesday, 27 October
Clear. High 70°, low 47°.
0Alpena, Wednesday, 28 October
Overcast. High 69°, low 46°.
0Alpena, Thursday, 29 October
Overcast. High 64°, low 47°.
0.09
Alpena, Friday, 30 October
Climate normal for this date — 60-year average.
0.05
Alpena, Saturday, 31 October
Climate normal for this date — 60-year average.
0.04Alpena, Sunday, 1 November
Climate normal for this date — 60-year average.
0.04Alpena, Monday, 2 November
Climate normal for this date — 60-year average.
0.03Alpena, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.01Alpena, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Alpena, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Alpena, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Alpena, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Alpena, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Alpena, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Alpena, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.02Alpena, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Alpena, Thursday, 12 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 Alpena, 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 Alpena, 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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