As of 05:38 CDT

Weather in Armour, SD

53°

Armour, Friday, 9 October, 05:38

Clear. Feels like 52°. High 83°, low 53°.

Pressure29.91 inHg

Wind4.4 mph E

Humidity88%

Visibility6.2 mi

Dew point49°

See detailed hourly forecast

Monthly outlook for Armour, SD: average high 69.4°, average low 50.4°. That is 4.7° above the climate normal for October. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 10 October (88.6°), the coolest 17 October (31.7°).

69.4°/50.4°

Average high / low

+4.7°

Above normal

4 / 3

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	68.1°	62°	+3.4°
19 October – 28 October	71.6°	58.4°	+7.4°
29 October – 7 November	at normal	52.3°	—

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).

Sat, 1089° / 67°

89 °

Armour, Saturday, 10 October

Clear. High 89°, low 67°.

Pressure29.59 inHg

Wind17.9 mph S

Humidity29%

Visibility6.2 mi

Dew point47°

Sun, 1185° / 58°

85 °

Armour, Sunday, 11 October

Overcast. High 85°, low 58°.

Pressure29.62 inHg

Wind10.1 mph S

Humidity33%

Visibility6.2 mi

Dew point48°

Mon, 1269° / 50°

0.06

69 °

Armour, Monday, 12 October

Light rain. High 69°, low 50°.

Pressure29.80 inHg

Wind6.9 mph NE

Humidity64%

Visibility6.2 mi

Dew point50°

Tue, 1362° / 52°

0.02

62 °

Armour, Tuesday, 13 October

Light rain. High 62°, low 52°.

Pressure29.97 inHg

Wind10.4 mph N

Humidity55%

Visibility—

Dew point43°

Wed, 1459° / 53°

0.32

59 °

Armour, Wednesday, 14 October

Rain. High 59°, low 53°.

Pressure29.85 inHg

Wind13.9 mph NE

Humidity66%

Visibility—

Dew point46°

Thu, 1567° / 45°

0.31

67 °

Armour, Thursday, 15 October

Rain. High 67°, low 45°.

Pressure29.53 inHg

Wind36.9 mph NW

Humidity83%

Visibility—

Dew point49°

Fri, 1648° / 39°

48 °

Armour, Friday, 16 October

Partly cloudy. High 48°, low 39°.

Pressure30.24 inHg

Wind29.8 mph NW

Humidity43%

Visibility—

Dew point24°

Sat, 1753° / 32°

53 °

Armour, Saturday, 17 October

Partly cloudy. High 53°, low 32°.

Pressure30.39 inHg

Wind13.9 mph S

Humidity30%

Visibility—

Dew point16°

Sun, 1867° / 43°

67 °

Armour, Sunday, 18 October

Overcast. High 67°, low 43°.

Pressure30.09 inHg

Wind12.7 mph S

Humidity32%

Visibility—

Dew point30°

Mon, 1975° / 49°

75 °

Armour, Monday, 19 October

Mostly clear. High 75°, low 49°.

Pressure30.03 inHg

Wind15.4 mph S

Humidity39%

Visibility—

Dew point40°

Tue, 2074° / 54°

74 °

Armour, Tuesday, 20 October

Clear. High 74°, low 54°.

Pressure29.97 inHg

Wind21.8 mph S

Humidity30%

Visibility—

Dew point35°

Wed, 2173° / 52°

73 °

Armour, Wednesday, 21 October

Clear. High 73°, low 52°.

Pressure30.03 inHg

Wind17.2 mph S

Humidity30%

Visibility—

Dew point34°

Thu, 2269° / 50°

69 °

Armour, Thursday, 22 October

Overcast. High 69°, low 50°.

Pressure30.18 inHg

Wind8.3 mph S

Humidity38%

Visibility—

Dew point38°

Fri, 2369° / 53°

69 °

Armour, Friday, 23 October

Overcast. High 69°, low 53°.

Pressure30.12 inHg

Wind14.5 mph SE

Humidity50%

Visibility—

Dew point45°

Sat, 2469° / 55°

0.06

69 °

Armour, Saturday, 24 October

Light rain. High 69°, low 55°.

Pressure29.91 inHg

Wind15.9 mph S

Humidity55%

Visibility—

Dew point48°

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

Sun, 2557° / 40°

0.04

57 °

Armour, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high57°

Average low40°

Average precipitation0.04 in

Chance of precipitation15%

Record high79° (1989)

Record low21° (2020)

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)

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.