As of 08:43 MST

Weather in Porcupine, SD

49°Current weather

Porcupine, Tuesday, 10 November, 08:43

Overcast. Feels like 44°. High 63°, low 37°.

Pressure30.00 inHg
Wind13.1 mph SW
Humidity61%
Visibility6.2 mi
Dew point37°

Monthly outlook for Porcupine, SD: average high 46.9°, average low 29.9°. That is 0.8° above the climate normal for November. Precipitation is expected on 4 days (about 4.5 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 13 November (62.9°), the coolest 24 November (-0.8°).

46.9°/29.9°
Average high / low
+0.8°
Above normal
4 / 3
Wet days / normal
4.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
10 November – 19 November57.2°46.6°+5.9°
20 November – 29 November29.8°41.3°-6.4°
30 November – 9 Decemberat normal37.8°—

November records over 66 years

78.3°2 November 2008All-time high
-13.7°12 November 1986All-time low
Wed, 1161° / 35°0Partly cloudy
61 °Partly cloudy

Porcupine, Wednesday, 11 November

Partly cloudy. High 61°, low 35°.

Pressure30.15 inHg
Wind4.2 mph NW
Humidity39%
Visibility6.2 mi
Dew point34°
Thu, 1260° / 38°0Clear
60 °Clear

Porcupine, Thursday, 12 November

Clear. High 60°, low 38°.

Pressure30.06 inHg
Wind3.9 mph S
Humidity51%
Visibility6.2 mi
Dew point39°
Fri, 1363° / 38°0Partly cloudy
63 °Partly cloudy

Porcupine, Friday, 13 November

Partly cloudy. High 63°, low 38°.

Pressure29.83 inHg
Wind3.9 mph SE
Humidity48%
Visibility6.2 mi
Dew point40°
Sat, 1452° / 43°0Overcast
52 °Overcast

Porcupine, Saturday, 14 November

Overcast. High 52°, low 43°.

Pressure29.74 inHg
Wind14.5 mph S
Humidity72%
Visibility—
Dew point40°
Sun, 1553° / 44°0Overcast
53 °Overcast

Porcupine, Sunday, 15 November

Overcast. High 53°, low 44°.

Pressure30.00 inHg
Wind16.7 mph S
Humidity71%
Visibility—
Dew point41°
Mon, 1654° / 42°0Clear
54 °Clear

Porcupine, Monday, 16 November

Clear. High 54°, low 42°.

Pressure30.09 inHg
Wind22.4 mph S
Humidity56%
Visibility—
Dew point35°
Tue, 1757° / 40°0Clear
57 °Clear

Porcupine, Tuesday, 17 November

Clear. High 57°, low 40°.

Pressure29.88 inHg
Wind21.9 mph S
Humidity55%
Visibility—
Dew point36°
Wed, 1858° / 44°0Overcast
58 °Overcast

Porcupine, Wednesday, 18 November

Overcast. High 58°, low 44°.

Pressure29.62 inHg
Wind19.7 mph S
Humidity68%
Visibility—
Dew point40°
Thu, 1952° / 39°0Overcast
52 °Overcast

Porcupine, Thursday, 19 November

Overcast. High 52°, low 39°.

Pressure29.88 inHg
Wind14.5 mph W
Humidity43%
Visibility—
Dew point28°
Fri, 2040° / 32°1.11Snow
40 °Snow

Porcupine, Friday, 20 November

Snow. High 40°, low 32°.

Pressure30.09 inHg
Wind23 mph N
Humidity67%
Visibility—
Dew point29°
Sat, 2132° / 24°3.06Heavy snow
32 °Heavy snow

Porcupine, Saturday, 21 November

Heavy snow. High 32°, low 24°.

Pressure29.91 inHg
Wind32 mph N
Humidity98%
Visibility—
Dew point30°
Sun, 2229° / 11°0.29Snow
29 °Snow

Porcupine, Sunday, 22 November

Snow. High 29°, low 11°.

Pressure30.06 inHg
Wind24.5 mph NW
Humidity86%
Visibility—
Dew point21°
Mon, 2331° / 14°0.01Light snow
31 °Light snow

Porcupine, Monday, 23 November

Light snow. High 31°, low 14°.

Pressure30.03 inHg
Wind21.5 mph NW
Humidity81%
Visibility—
Dew point24°
Tue, 2421° / -1°0Overcast
21 °Overcast

Porcupine, Tuesday, 24 November

Overcast. High 21°, low -1°.

Pressure30.45 inHg
Wind12.5 mph N
Humidity79%
Visibility—
Dew point14°
Wed, 2526° / -1°0.07Light snow
26 °Light snow

Porcupine, Wednesday, 25 November

Light snow. High 26°, low -1°.

Pressure30.27 inHg
Wind7.9 mph S
Humidity84%
Visibility—
Dew point14°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2638° / 23°0.07Climate normal
38 °Climate normal

Porcupine, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high38°
Average low23°
Average precipitation0.07 in
Chance of precipitation30%
Record high62° (2017)
Record low-7° (1975)
Fri, 2738° / 22°0.03Climate normal
38 °Climate normal

Porcupine, Friday, 27 November

Climate normal for this date — 60-year average.

Average high38°
Average low22°
Average precipitation0.03 in
Chance of precipitation18%
Record high69° (2017)
Record low-7° (1976)
Sat, 2838° / 22°0.02Climate normal
38 °Climate normal

Porcupine, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high38°
Average low22°
Average precipitation0.02 in
Chance of precipitation13%
Record high61° (1998)
Record low-10° (1976)
Sun, 2939° / 22°0.02Climate normal
39 °Climate normal

Porcupine, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high39°
Average low22°
Average precipitation0.02 in
Chance of precipitation17%
Record high61° (2014)
Record low-4° (1976)
Mon, 3038° / 22°0.05Climate normal
38 °Climate normal

Porcupine, Monday, 30 November

Climate normal for this date — 60-year average.

Average high38°
Average low22°
Average precipitation0.05 in
Chance of precipitation22%
Record high64° (1999)
Record low-7° (1983)
Tue, 0138° / 23°0.04Climate normal
38 °Climate normal

Porcupine, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high38°
Average low23°
Average precipitation0.04 in
Chance of precipitation20%
Record high64° (2021)
Record low-13° (1985)
Wed, 0238° / 22°0.02Climate normal
38 °Climate normal

Porcupine, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high38°
Average low22°
Average precipitation0.02 in
Chance of precipitation17%
Record high65° (2012)
Record low-24° (1985)
Thu, 0339° / 23°0.02Climate normal
39 °Climate normal

Porcupine, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high39°
Average low23°
Average precipitation0.02 in
Chance of precipitation13%
Record high65° (2017)
Record low-3° (1991)
Fri, 0440° / 23°0.02Climate normal
40 °Climate normal

Porcupine, Friday, 4 December

Climate normal for this date — 60-year average.

Average high40°
Average low23°
Average precipitation0.02 in
Chance of precipitation10%
Record high64° (1965)
Record low-2° (1972)
Sat, 0537° / 21°0.02Climate normal
37 °Climate normal

Porcupine, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high37°
Average low21°
Average precipitation0.02 in
Chance of precipitation17%
Record high61° (2012)
Record low-16° (1972)
Sun, 0636° / 20°0.02Climate normal
36 °Climate normal

Porcupine, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high36°
Average low20°
Average precipitation0.02 in
Chance of precipitation15%
Record high60° (1963)
Record low-30° (1972)
Mon, 0737° / 21°0.02Climate normal
37 °Climate normal

Porcupine, Monday, 7 December

Climate normal for this date — 60-year average.

Average high37°
Average low21°
Average precipitation0.02 in
Chance of precipitation17%
Record high59° (1987)
Record low-16° (1972)
Tue, 0837° / 20°0.02Climate normal
37 °Climate normal

Porcupine, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high37°
Average low20°
Average precipitation0.02 in
Chance of precipitation17%
Record high55° (2020)
Record low-16° (1972)
Wed, 0937° / 20°0.02Climate normal
37 °Climate normal

Porcupine, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high37°
Average low20°
Average precipitation0.02 in
Chance of precipitation18%
Record high62° (2015)
Record low-20° (1972)

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 Porcupine, 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 Porcupine, 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.