As of 21:09 CDT

Weather in Alpena, SD

39°Current weather

Alpena, Friday, 16 October, 21:09

Clear. Feels like 36°. High 52°, low 39°.

Pressure30.56 inHg
Wind4.5 mph S
Humidity71%
Visibility6.2 mi
Dew point31°

Monthly outlook for Alpena, SD: average high 61.7°, average low 44.5°. That is 2.8° above the climate normal for October. Precipitation is expected on 3 days (about 1.2 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 22 October (75.1°), the coolest 25 October (37.7°).

61.7°/44.5°
Average high / low
+2.8°
Above normal
3 / 3
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
16 October – 25 October63.8°58.1°+3.1°
26 October – 4 November58.2°52.6°+3.1°
5 November – 14 Novemberat normal46.4°—

October records over 66 years

90.1°3 October 2025All-time high
10.8°27 October 2020All-time low
Sat, 1765° / 39°0Clear
65 °Clear

Alpena, Saturday, 17 October

Clear. High 65°, low 39°.

Pressure30.21 inHg
Wind15.7 mph S
Humidity43%
Visibility6.2 mi
Dew point35°
Sun, 1866° / 45°0Clear
66 °Clear

Alpena, Sunday, 18 October

Clear. High 66°, low 45°.

Pressure30.03 inHg
Wind6.2 mph S
Humidity50%
Visibility6.2 mi
Dew point42°
Mon, 1963° / 43°0Overcast
63 °Overcast

Alpena, Monday, 19 October

Overcast. High 63°, low 43°.

Pressure30.18 inHg
Wind6.7 mph E
Humidity63%
Visibility6.2 mi
Dew point44°
Tue, 2067° / 48°0Clear
67 °Clear

Alpena, Tuesday, 20 October

Clear. High 67°, low 48°.

Pressure30.12 inHg
Wind12 mph SE
Humidity71%
Visibility6.2 mi
Dew point50°
Wed, 2169° / 52°0Clear
69 °Clear

Alpena, Wednesday, 21 October

Clear. High 69°, low 52°.

Pressure30.09 inHg
Wind8.7 mph S
Humidity71%
Visibility—
Dew point54°
Thu, 2275° / 48°0Clear
75 °Clear

Alpena, Thursday, 22 October

Clear. High 75°, low 48°.

Pressure30.15 inHg
Wind13.7 mph SE
Humidity63%
Visibility—
Dew point51°
Fri, 2373° / 61°0.4Rain
73 °Rain

Alpena, Friday, 23 October

Rain. High 73°, low 61°.

Pressure29.74 inHg
Wind22.5 mph S
Humidity68%
Visibility—
Dew point59°
Sat, 2456° / 45°0Overcast
56 °Overcast

Alpena, Saturday, 24 October

Overcast. High 56°, low 45°.

Pressure30.27 inHg
Wind21 mph W
Humidity55%
Visibility—
Dew point36°
Sun, 2552° / 38°0.02Light rain
52 °Light rain

Alpena, Sunday, 25 October

Light rain. High 52°, low 38°.

Pressure30.47 inHg
Wind8.4 mph SE
Humidity36%
Visibility—
Dew point22°
Mon, 2663° / 43°0.07Light rain
63 °Light rain

Alpena, Monday, 26 October

Light rain. High 63°, low 43°.

Pressure30.00 inHg
Wind12.4 mph W
Humidity62%
Visibility—
Dew point44°
Tue, 2757° / 40°0Clear
57 °Clear

Alpena, Tuesday, 27 October

Clear. High 57°, low 40°.

Pressure30.21 inHg
Wind6.7 mph NW
Humidity48%
Visibility—
Dew point32°
Wed, 2862° / 42°0Mostly clear
62 °Mostly clear

Alpena, Wednesday, 28 October

Mostly clear. High 62°, low 42°.

Pressure30.09 inHg
Wind13.4 mph S
Humidity44%
Visibility—
Dew point34°
Thu, 2952° / 43°0.68Rain
52 °Rain

Alpena, Thursday, 29 October

Rain. High 52°, low 43°.

Pressure29.74 inHg
Wind17.7 mph NE
Humidity77%
Visibility—
Dew point42°
Fri, 3053° / 42°0Light rain
53 °Light rain

Alpena, Friday, 30 October

Light rain. High 53°, low 42°.

Pressure30.03 inHg
Wind16.1 mph N
Humidity63%
Visibility—
Dew point37°
Sat, 3162° / 44°0Clear
62 °Clear

Alpena, Saturday, 31 October

Clear. High 62°, low 44°.

Pressure30.18 inHg
Wind8.7 mph W
Humidity49%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0151° / 35°0.04Climate normal
51 °Climate normal

Alpena, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation18%
Record high75° (1990)
Record low16° (2002)
Mon, 0251° / 34°0.04Climate normal
51 °Climate normal

Alpena, Monday, 2 November

Climate normal for this date — 60-year average.

Average high51°
Average low34°
Average precipitation0.04 in
Chance of precipitation10%
Record high74° (2022)
Record low11° (1991)
Tue, 0350° / 35°0.03Climate normal
50 °Climate normal

Alpena, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high50°
Average low35°
Average precipitation0.03 in
Chance of precipitation15%
Record high75° (1978)
Record low9° (1991)
Wed, 0450° / 32°0.01Climate normal
50 °Climate normal

Alpena, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high50°
Average low32°
Average precipitation0.01 in
Chance of precipitation8%
Record high72° (1978)
Record low2° (1995)
Thu, 0550° / 33°0.04Climate normal
50 °Climate normal

Alpena, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high50°
Average low33°
Average precipitation0.04 in
Chance of precipitation20%
Record high74° (2001)
Record low10° (2003)
Fri, 0649° / 33°0.02Climate normal
49 °Climate normal

Alpena, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°
Average low33°
Average precipitation0.02 in
Chance of precipitation15%
Record high78° (2020)
Record low1° (2003)
Sat, 0750° / 32°0.03Climate normal
50 °Climate normal

Alpena, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high50°
Average low32°
Average precipitation0.03 in
Chance of precipitation10%
Record high74° (2020)
Record low5° (1990)
Sun, 0848° / 32°0.07Climate normal
48 °Climate normal

Alpena, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high48°
Average low32°
Average precipitation0.07 in
Chance of precipitation15%
Record high75° (1999)
Record low6° (2003)
Mon, 0946° / 31°0.07Climate normal
46 °Climate normal

Alpena, Monday, 9 November

Climate normal for this date — 60-year average.

Average high46°
Average low31°
Average precipitation0.07 in
Chance of precipitation20%
Record high67° (1999)
Record low11° (2018)
Tue, 1044° / 28°0.05Climate normal
44 °Climate normal

Alpena, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high44°
Average low28°
Average precipitation0.05 in
Chance of precipitation22%
Record high65° (2016)
Record low1° (1986)
Wed, 1143° / 27°0.02Climate normal
43 °Climate normal

Alpena, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high43°
Average low27°
Average precipitation0.02 in
Chance of precipitation13%
Record high67° (2005)
Record low-5° (1986)
Thu, 1243° / 27°0.06Climate normal
43 °Climate normal

Alpena, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high43°
Average low27°
Average precipitation0.06 in
Chance of precipitation22%
Record high68° (1999)
Record low-1° (1966)
Fri, 1346° / 29°0.02Climate normal
46 °Climate normal

Alpena, Friday, 13 November

Climate normal for this date — 60-year average.

Average high46°
Average low29°
Average precipitation0.02 in
Chance of precipitation18%
Record high72° (1999)
Record low1° (1986)
Sat, 1445° / 29°0.02Climate normal
45 °Climate normal

Alpena, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high45°
Average low29°
Average precipitation0.02 in
Chance of precipitation13%
Record high75° (2025)
Record low2° (2014)

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.