As of 04:03 CDT

Weather in Alpena, SD

61°Current weather

Alpena, Sunday, 11 October, 04:03

Clear. Feels like 59°. High 79°, low 55°.

Pressure29.59 inHg
Wind3 mph S
Humidity63%
Visibility6.2 mi
Dew point48°

Monthly outlook for Alpena, SD: average high 63.3°, average low 44.1°. That is 2.5° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 11 October (78.5°), the coolest 17 October (24.6°).

63.3°/44.1°
Average high / low
+2.5°
Above normal
1 / 3
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
11 October – 20 October63.2°60°+1.8°
21 October – 30 October63.5°55.7°+4.3°
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, 1267° / 49°0Overcast
67 °Overcast

Alpena, Monday, 12 October

Overcast. High 67°, low 49°.

Pressure29.71 inHg
Wind12.9 mph N
Humidity74%
Visibility6.2 mi
Dew point54°
Tue, 1357° / 49°0Overcast
57 °Overcast

Alpena, Tuesday, 13 October

Overcast. High 57°, low 49°.

Pressure30.03 inHg
Wind9.3 mph N
Humidity59%
Visibility6.2 mi
Dew point39°
Wed, 1459° / 43°0Clear
59 °Clear

Alpena, Wednesday, 14 October

Clear. High 59°, low 43°.

Pressure30.27 inHg
Wind6.5 mph NE
Humidity57%
Visibility6.2 mi
Dew point40°
Thu, 1558° / 49°0.1Light rain
58 °Light rain

Alpena, Thursday, 15 October

Light rain. High 58°, low 49°.

Pressure30.27 inHg
Wind16.4 mph NW
Humidity58%
Visibility—
Dew point42°
Fri, 1654° / 40°0Clear
54 °Clear

Alpena, Friday, 16 October

Clear. High 54°, low 40°.

Pressure30.74 inHg
Wind16.9 mph N
Humidity51%
Visibility—
Dew point32°
Sat, 1745° / 25°0Mostly clear
45 °Mostly clear

Alpena, Saturday, 17 October

Mostly clear. High 45°, low 25°.

Pressure30.62 inHg
Wind13.4 mph SE
Humidity25%
Visibility—
Dew point5°
Sun, 1865° / 36°0Overcast
65 °Overcast

Alpena, Sunday, 18 October

Overcast. High 65°, low 36°.

Pressure30.03 inHg
Wind19.5 mph S
Humidity28%
Visibility—
Dew point20°
Mon, 1972° / 48°0Mostly clear
72 °Mostly clear

Alpena, Monday, 19 October

Mostly clear. High 72°, low 48°.

Pressure29.97 inHg
Wind9.4 mph SE
Humidity33%
Visibility—
Dew point34°
Tue, 2075° / 50°0Clear
75 °Clear

Alpena, Tuesday, 20 October

Clear. High 75°, low 50°.

Pressure29.74 inHg
Wind12.2 mph S
Humidity28%
Visibility—
Dew point34°
Wed, 2169° / 53°0Overcast
69 °Overcast

Alpena, Wednesday, 21 October

Overcast. High 69°, low 53°.

Pressure30.09 inHg
Wind11.6 mph NW
Humidity31%
Visibility—
Dew point33°
Thu, 2264° / 41°0Mostly clear
64 °Mostly clear

Alpena, Thursday, 22 October

Mostly clear. High 64°, low 41°.

Pressure30.33 inHg
Wind15.6 mph SE
Humidity38%
Visibility—
Dew point31°
Fri, 2369° / 50°0Overcast
69 °Overcast

Alpena, Friday, 23 October

Overcast. High 69°, low 50°.

Pressure29.80 inHg
Wind24.4 mph W
Humidity36%
Visibility—
Dew point39°
Sat, 2457° / 42°0Clear
57 °Clear

Alpena, Saturday, 24 October

Clear. High 57°, low 42°.

Pressure30.33 inHg
Wind17 mph NW
Humidity34%
Visibility—
Dew point28°
Sun, 2564° / 37°0Partly cloudy
64 °Partly cloudy

Alpena, Sunday, 25 October

Partly cloudy. High 64°, low 37°.

Pressure30.30 inHg
Wind12.5 mph W
Humidity27%
Visibility—
Dew point22°
Mon, 2659° / 39°0Clear
59 °Clear

Alpena, Monday, 26 October

Clear. High 59°, low 39°.

Pressure30.27 inHg
Wind8.4 mph N
Humidity39%
Visibility—
Dew point29°
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.