As of 14:27 CDT

Weather in Alpena, SD

73°Current weather

Alpena, Sunday, 11 October, 14:27

Overcast. Feels like 73°. High 75°, low 53°.

Pressure29.71 inHg
Wind3.2 mph N
Humidity53%
Visibility6.2 mi
Dew point55°

Monthly outlook for Alpena, SD: average high 66°, average low 47.1°. That is 3.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 24 October (79.1°), the coolest 17 October (34.5°).

66°/47.1°
Average high / low
+3.9°
Above normal
2 / 3
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October65.3°60°+3°
21 October – 30 October67.1°55.7°+6.3°
31 October – 9 Novemberat normal49.7°—

October records over 66 years

90.1°3 October 2025All-time high
10.8°27 October 2020All-time low
Mon, 1270° / 50°0.05Light rain
70 °Light rain

Alpena, Monday, 12 October

Light rain. High 70°, low 50°.

Pressure29.68 inHg
Wind12 mph N
Humidity71%
Visibility6.2 mi
Dew point55°
Tue, 1356° / 48°0Overcast
56 °Overcast

Alpena, Tuesday, 13 October

Overcast. High 56°, low 48°.

Pressure30.03 inHg
Wind10.1 mph N
Humidity62%
Visibility6.2 mi
Dew point41°
Wed, 1459° / 41°0Mostly clear
59 °Mostly clear

Alpena, Wednesday, 14 October

Mostly clear. High 59°, low 41°.

Pressure30.27 inHg
Wind6.6 mph N
Humidity58%
Visibility6.2 mi
Dew point39°
Thu, 1558° / 49°0.28Light rain
58 °Light rain

Alpena, Thursday, 15 October

Light rain. High 58°, low 49°.

Pressure30.24 inHg
Wind10.4 mph N
Humidity82%
Visibility6.2 mi
Dew point46°
Fri, 1655° / 42°0Clear
55 °Clear

Alpena, Friday, 16 October

Clear. High 55°, low 42°.

Pressure30.68 inHg
Wind14.7 mph N
Humidity56%
Visibility—
Dew point35°
Sat, 1760° / 34°0Overcast
60 °Overcast

Alpena, Saturday, 17 October

Overcast. High 60°, low 34°.

Pressure30.39 inHg
Wind21.3 mph S
Humidity23%
Visibility—
Dew point14°
Sun, 1876° / 46°0Overcast
76 °Overcast

Alpena, Sunday, 18 October

Overcast. High 76°, low 46°.

Pressure29.91 inHg
Wind19.4 mph S
Humidity32%
Visibility—
Dew point35°
Mon, 1972° / 48°0Overcast
72 °Overcast

Alpena, Monday, 19 October

Overcast. High 72°, low 48°.

Pressure30.12 inHg
Wind14.9 mph SE
Humidity27%
Visibility—
Dew point30°
Tue, 2073° / 51°0Mostly clear
73 °Mostly clear

Alpena, Tuesday, 20 October

Mostly clear. High 73°, low 51°.

Pressure29.83 inHg
Wind20.5 mph S
Humidity35%
Visibility—
Dew point36°
Wed, 2171° / 53°0Clear
71 °Clear

Alpena, Wednesday, 21 October

Clear. High 71°, low 53°.

Pressure29.97 inHg
Wind11.7 mph NW
Humidity39%
Visibility—
Dew point39°
Thu, 2267° / 50°0Overcast
67 °Overcast

Alpena, Thursday, 22 October

Overcast. High 67°, low 50°.

Pressure30.09 inHg
Wind9.9 mph SE
Humidity42%
Visibility—
Dew point41°
Fri, 2369° / 49°0Mostly clear
69 °Mostly clear

Alpena, Friday, 23 October

Mostly clear. High 69°, low 49°.

Pressure30.15 inHg
Wind6.6 mph NW
Humidity45%
Visibility—
Dew point42°
Sat, 2479° / 52°0Clear
79 °Clear

Alpena, Saturday, 24 October

Clear. High 79°, low 52°.

Pressure29.97 inHg
Wind17.9 mph S
Humidity47%
Visibility—
Dew point49°
Sun, 2562° / 46°0Overcast
62 °Overcast

Alpena, Sunday, 25 October

Overcast. High 62°, low 46°.

Pressure30.15 inHg
Wind20 mph NW
Humidity28%
Visibility—
Dew point26°
Mon, 2655° / 40°0Partly cloudy
55 °Partly cloudy

Alpena, Monday, 26 October

Partly cloudy. High 55°, low 40°.

Pressure30.09 inHg
Wind12.7 mph NW
Humidity46%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2755° / 38°0.06Climate normal
55 °Climate normal

Alpena, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high55°
Average low38°
Average precipitation0.06 in
Chance of precipitation23%
Record high73° (1999)
Record low11° (2020)
Wed, 2854° / 37°0.04Climate normal
54 °Climate normal

Alpena, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high54°
Average low37°
Average precipitation0.04 in
Chance of precipitation12%
Record high76° (2016)
Record low17° (2017)
Thu, 2953° / 37°0.07Climate normal
53 °Climate normal

Alpena, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high53°
Average low37°
Average precipitation0.07 in
Chance of precipitation20%
Record high71° (1978)
Record low18° (1991)
Fri, 3052° / 36°0.09Climate normal
52 °Climate normal

Alpena, Friday, 30 October

Climate normal for this date — 60-year average.

Average high52°
Average low36°
Average precipitation0.09 in
Chance of precipitation23%
Record high72° (1965)
Record low14° (1991)
Sat, 3152° / 35°0.05Climate normal
52 °Climate normal

Alpena, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high52°
Average low35°
Average precipitation0.05 in
Chance of precipitation15%
Record high79° (2016)
Record low11° (2002)
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)

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.