Weather in Alpena, SD
Alpena, Monday, 12 October, 12:16
Overcast. Feels like 51°. High 60°, low 50°.
Monthly outlook for Alpena, SD: average high 65.3°, average low 48.1°. That is 3.9° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 21 October (78.7°), the coolest 14 October (38.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 64.9° | 59.4° | +3.1° |
| 22 October – 31 October | 65.9° | 55° | +6° |
| 1 November – 10 November | at normal | 48.9° | — |
October records over 66 years
0.04
Alpena, Tuesday, 13 October
Light rain. High 57°, low 41°.
0
Alpena, Wednesday, 14 October
Clear. High 57°, low 39°.
0.01Alpena, Thursday, 15 October
Light rain. High 61°, low 46°.
0Alpena, Friday, 16 October
Clear. High 54°, low 39°.
0Alpena, Saturday, 17 October
Clear. High 67°, low 43°.
0Alpena, Sunday, 18 October
Clear. High 74°, low 45°.
0Alpena, Monday, 19 October
Overcast. High 70°, low 51°.
0Alpena, Tuesday, 20 October
Clear. High 71°, low 46°.
0.01Alpena, Wednesday, 21 October
Light rain. High 79°, low 57°.
0.29Alpena, Thursday, 22 October
Rain. High 71°, low 61°.
0.54Alpena, Friday, 23 October
Rain. High 69°, low 59°.
0.21Alpena, Saturday, 24 October
Rain. High 66°, low 50°.
0Alpena, Sunday, 25 October
Clear. High 58°, low 47°.
0
Alpena, Monday, 26 October
Partly cloudy. High 69°, low 46°.
0Alpena, Tuesday, 27 October
Clear. High 61°, low 48°.
0.04
Alpena, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.07Alpena, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Alpena, Friday, 30 October
Climate normal for this date — 60-year average.
0.05Alpena, 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.
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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