As of 19:39 CDT

Weather in Armour, SD

77°

Armour, Saturday, 10 October, 19:39

Clear. Feels like 76°. High 88°, low 64°.

Pressure29.56 inHg

Wind12.6 mph S

Humidity42%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

Monthly outlook for Armour, SD: average high 63.1°, average low 44.5°. That is 1.4° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 10 October (87.9°), the coolest 17 October (25.3°).

63.1°/44.5°

Average high / low

+1.4°

Above normal

0 / 3

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
10 October – 19 October	63.5°	61.6°	+1.1°
20 October – 29 October	62.5°	57.8°	+2.6°
30 October – 8 November	at normal	51.9°	—

October records over 66 years

91.4°2 October 1997All-time high

7.2°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Lakeview Colony (9 mi).

Sun, 1185° / 65°

85 °

Armour, Sunday, 11 October

Overcast. High 85°, low 65°.

Pressure29.65 inHg

Wind10 mph S

Humidity38%

Visibility6.2 mi

Dew point51°

Mon, 1268° / 54°

68 °

Armour, Monday, 12 October

Partly cloudy. High 68°, low 54°.

Pressure29.71 inHg

Wind9.6 mph N

Humidity67%

Visibility6.2 mi

Dew point54°

Tue, 1360° / 49°

60 °

Armour, Tuesday, 13 October

Mostly clear. High 60°, low 49°.

Pressure30.03 inHg

Wind7.4 mph N

Humidity55%

Visibility6.2 mi

Dew point40°

Wed, 1462° / 46°

62 °

Armour, Wednesday, 14 October

Clear. High 62°, low 46°.

Pressure30.27 inHg

Wind5.2 mph N

Humidity52%

Visibility6.2 mi

Dew point39°

Thu, 1562° / 51°

62 °

Armour, Thursday, 15 October

Overcast. High 62°, low 51°.

Pressure30.33 inHg

Wind10.7 mph N

Humidity56%

Visibility—

Dew point41°

Fri, 1653° / 33°

0.01

53 °

Armour, Friday, 16 October

Light rain. High 53°, low 33°.

Pressure30.50 inHg

Wind24.7 mph NW

Humidity57%

Visibility—

Dew point28°

Sat, 1740° / 25°

40 °

Armour, Saturday, 17 October

Clear. High 40°, low 25°.

Pressure30.65 inHg

Wind17 mph NW

Humidity35%

Visibility—

Dew point10°

Sun, 1850° / 26°

50 °

Armour, Sunday, 18 October

Mostly clear. High 50°, low 26°.

Pressure30.42 inHg

Wind20.6 mph S

Humidity26%

Visibility—

Dew point11°

Mon, 1967° / 41°

67 °

Armour, Monday, 19 October

Clear. High 67°, low 41°.

Pressure30.12 inHg

Wind18.5 mph S

Humidity41%

Visibility—

Dew point33°

Tue, 2073° / 50°

73 °

Armour, Tuesday, 20 October

Clear. High 73°, low 50°.

Pressure30.00 inHg

Wind15.1 mph S

Humidity33%

Visibility—

Dew point37°

Wed, 2171° / 53°

71 °

Armour, Wednesday, 21 October

Overcast. High 71°, low 53°.

Pressure29.97 inHg

Wind13.7 mph S

Humidity29%

Visibility—

Dew point32°

Thu, 2255° / 42°

0.02

55 °

Armour, Thursday, 22 October

Light rain. High 55°, low 42°.

Pressure30.39 inHg

Wind20.2 mph NW

Humidity48%

Visibility—

Dew point33°

Fri, 2351° / 36°

51 °

Armour, Friday, 23 October

Mostly clear. High 51°, low 36°.

Pressure30.47 inHg

Wind10.4 mph NW

Humidity49%

Visibility—

Dew point28°

Sat, 2457° / 35°

57 °

Armour, Saturday, 24 October

Clear. High 57°, low 35°.

Pressure30.24 inHg

Wind12.3 mph SE

Humidity45%

Visibility—

Dew point29°

Sun, 2568° / 42°

68 °

Armour, Sunday, 25 October

Overcast. High 68°, low 42°.

Pressure30.09 inHg

Wind11.9 mph S

Humidity40%

Visibility—

Dew point35°

From day 17 onward the outlook is built from 60-year climate statistics

Mon, 2658° / 40°

0.02

58 °

Armour, Monday, 26 October

Climate normal for this date — 60-year average.

Average high58°

Average low40°

Average precipitation0.02 in

Chance of precipitation17%

Record high76° (1989)

Record low14° (2020)

Tue, 2756° / 39°

0.05

56 °

Armour, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high56°

Average low39°

Average precipitation0.05 in

Chance of precipitation17%

Record high77° (1999)

Record low7° (2020)

Wed, 2855° / 38°

0.04

55 °

Armour, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high55°

Average low38°

Average precipitation0.04 in

Chance of precipitation18%

Record high78° (2016)

Record low22° (2017)

Thu, 2955° / 38°

0.07

55 °

Armour, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high55°

Average low38°

Average precipitation0.07 in

Chance of precipitation20%

Record high74° (1978)

Record low20° (1991)

Fri, 3053° / 38°

0.1

53 °

Armour, Friday, 30 October

Climate normal for this date — 60-year average.

Average high53°

Average low38°

Average precipitation0.1 in

Chance of precipitation30%

Record high76° (1965)

Record low17° (1991)

Sat, 3153° / 36°

0.06

53 °

Armour, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high53°

Average low36°

Average precipitation0.06 in

Chance of precipitation18%

Record high82° (2016)

Record low14° (2002)

Sun, 0152° / 37°

0.04

52 °

Armour, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.04 in

Chance of precipitation13%

Record high75° (1990)

Record low14° (2002)

Mon, 0252° / 36°

0.05

52 °

Armour, Monday, 2 November

Climate normal for this date — 60-year average.

Average high52°

Average low36°

Average precipitation0.05 in

Chance of precipitation18%

Record high76° (2005)

Record low10° (1991)

Tue, 0351° / 36°

0.04

51 °

Armour, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.04 in

Chance of precipitation15%

Record high74° (1978)

Record low7° (1991)

Wed, 0452° / 34°

0.01

52 °

Armour, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high52°

Average low34°

Average precipitation0.01 in

Chance of precipitation5%

Record high74° (1978)

Record low-8° (1991)

Thu, 0552° / 35°

0.03

52 °

Armour, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high52°

Average low35°

Average precipitation0.03 in

Chance of precipitation17%

Record high74° (2001)

Record low15° (2003)

Fri, 0651° / 35°

0.02

51 °

Armour, Friday, 6 November

Climate normal for this date — 60-year average.

Average high51°

Average low35°

Average precipitation0.02 in

Chance of precipitation12%

Record high79° (2020)

Record low7° (2003)

Sat, 0752° / 34°

0.02

52 °

Armour, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high52°

Average low34°

Average precipitation0.02 in

Chance of precipitation13%

Record high77° (2020)

Record low-2° (1991)

Sun, 0851° / 34°

0.06

51 °

Armour, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high51°

Average low34°

Average precipitation0.06 in

Chance of precipitation12%

Record high75° (1999)

Record low7° (1991)

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 Armour, 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 Armour, 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.