As of 02:17 MDT

Weather in Custer, SD

49°

Custer, Wednesday, 7 October, 02:17

Mostly clear. Feels like 47°. High 71°, low 44°.

Pressure30.09 inHg

Wind4.6 mph NW

Humidity29%

Visibility6.2 mi

Dew point22°

See detailed hourly forecast

Monthly outlook for Custer, SD: average high 60.7°, average low 38.8°. That is 2.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 9 October (76.8°), the coolest 17 October (20.5°).

60.7°/38.8°

Average high / low

+2.3°

Above normal

2 / 4

Wet days / normal

0.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 October – 16 October	60.6°	57°	+2°
17 October – 26 October	60.9°	54.8°	+3.4°
27 October – 5 November	at normal	48.4°	—

October records over 66 years

83.8°4 October 1963All-time high

-2.9°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Pringle (11 mi).

Thu, 0873° / 38°

73 °

Custer, Thursday, 8 October

Clear. High 73°, low 38°.

Pressure29.94 inHg

Wind1.7 mph W

Humidity22%

Visibility6.2 mi

Dew point31°

Fri, 0977° / 52°

77 °

Custer, Friday, 9 October

Overcast. High 77°, low 52°.

Pressure29.68 inHg

Wind11.2 mph W

Humidity21%

Visibility6.2 mi

Dew point30°

Sat, 1075° / 57°

0.01

75 °

Custer, Saturday, 10 October

Light rain. High 75°, low 57°.

Pressure29.53 inHg

Wind9.3 mph SW

Humidity22%

Visibility6.2 mi

Dew point31°

Sun, 1152° / 37°

0.29

52 °

Custer, Sunday, 11 October

Light rain. High 52°, low 37°.

Pressure29.88 inHg

Wind6.2 mph N

Humidity95%

Visibility—

Dew point44°

Mon, 1246° / 30°

0.31

46 °

Custer, Monday, 12 October

Snow. High 46°, low 30°.

Pressure30.18 inHg

Wind8.1 mph N

Humidity90%

Visibility—

Dew point31°

Tue, 1365° / 42°

65 °

Custer, Tuesday, 13 October

Overcast. High 65°, low 42°.

Pressure29.80 inHg

Wind8.9 mph SW

Humidity44%

Visibility—

Dew point38°

Wed, 1464° / 45°

0.02

64 °

Custer, Wednesday, 14 October

Light rain. High 64°, low 45°.

Pressure29.62 inHg

Wind15.9 mph N

Humidity40%

Visibility—

Dew point38°

Thu, 1541° / 30°

41 °

Custer, Thursday, 15 October

Clear. High 41°, low 30°.

Pressure30.18 inHg

Wind22 mph NW

Humidity32%

Visibility—

Dew point11°

Fri, 1641° / 27°

41 °

Custer, Friday, 16 October

Clear. High 41°, low 27°.

Pressure30.24 inHg

Wind22.7 mph NW

Humidity17%

Visibility—

Dew point-4°

Sat, 1759° / 20°

59 °

Custer, Saturday, 17 October

Clear. High 59°, low 20°.

Pressure30.21 inHg

Wind10.4 mph W

Humidity7%

Visibility—

Dew point-12°

Sun, 1866° / 43°

66 °

Custer, Sunday, 18 October

Overcast. High 66°, low 43°.

Pressure29.91 inHg

Wind9.4 mph W

Humidity16%

Visibility—

Dew point16°

Mon, 1965° / 42°

65 °

Custer, Monday, 19 October

Overcast. High 65°, low 42°.

Pressure29.83 inHg

Wind8.5 mph N

Humidity19%

Visibility—

Dew point19°

Tue, 2059° / 42°

0.01

59 °

Custer, Tuesday, 20 October

Light rain. High 59°, low 42°.

Pressure30.09 inHg

Wind11.1 mph NW

Humidity26%

Visibility—

Dew point22°

Wed, 2160° / 39°

60 °

Custer, Wednesday, 21 October

Overcast. High 60°, low 39°.

Pressure30.18 inHg

Wind12.7 mph NW

Humidity30%

Visibility—

Dew point27°

Thu, 2256° / 34°

56 °

Custer, Thursday, 22 October

Clear. High 56°, low 34°.

Pressure30.36 inHg

Wind5.7 mph NW

Humidity11%

Visibility—

Dew point0°

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

Fri, 2353° / 35°

0.04

53 °

Custer, Friday, 23 October

Climate normal for this date — 60-year average.

Average high53°

Average low35°

Average precipitation0.04 in

Chance of precipitation18%

Record high76° (2003)

Record low8° (1981)

Sat, 2453° / 34°

0.04

53 °

Custer, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high53°

Average low34°

Average precipitation0.04 in

Chance of precipitation18%

Record high71° (1960)

Record low15° (2020)

Sun, 2554° / 34°

0.02

54 °

Custer, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high54°

Average low34°

Average precipitation0.02 in

Chance of precipitation13%

Record high71° (1977)

Record low6° (2020)

Mon, 2653° / 34°

0.04

53 °

Custer, Monday, 26 October

Climate normal for this date — 60-year average.

Average high53°

Average low34°

Average precipitation0.04 in

Chance of precipitation15%

Record high70° (1977)

Record low-1° (2020)

Tue, 2751° / 33°

0.04

51 °

Custer, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high51°

Average low33°

Average precipitation0.04 in

Chance of precipitation18%

Record high70° (2016)

Record low10° (2020)

Wed, 2851° / 32°

0.07

51 °

Custer, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high51°

Average low32°

Average precipitation0.07 in

Chance of precipitation17%

Record high72° (2016)

Record low10° (1991)

Thu, 2950° / 32°

0.06

50 °

Custer, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high50°

Average low32°

Average precipitation0.06 in

Chance of precipitation30%

Record high74° (1968)

Record low1° (1991)

Fri, 3048° / 30°

0.04

48 °

Custer, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°

Average low30°

Average precipitation0.04 in

Chance of precipitation23%

Record high71° (1968)

Record low-3° (1991)

Sat, 3147° / 31°

0.04

47 °

Custer, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high47°

Average low31°

Average precipitation0.04 in

Chance of precipitation18%

Record high69° (1999)

Record low-2° (1991)

Sun, 0147° / 29°

0.05

47 °

Custer, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high47°

Average low29°

Average precipitation0.05 in

Chance of precipitation18%

Record high67° (2008)

Record low0° (1991)

Mon, 0247° / 29°

0.04

47 °

Custer, Monday, 2 November

Climate normal for this date — 60-year average.

Average high47°

Average low29°

Average precipitation0.04 in

Chance of precipitation20%

Record high71° (2008)

Record low-6° (1991)

Tue, 0347° / 30°

0.04

47 °

Custer, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high47°

Average low30°

Average precipitation0.04 in

Chance of precipitation22%

Record high69° (2020)

Record low-5° (1991)

Wed, 0448° / 29°

0.01

48 °

Custer, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high48°

Average low29°

Average precipitation0.01 in

Chance of precipitation10%

Record high70° (2020)

Record low8° (1995)

Thu, 0547° / 30°

0.03

47 °

Custer, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high47°

Average low30°

Average precipitation0.03 in

Chance of precipitation17%

Record high67° (2001)

Record low1° (2003)

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 Custer, 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 Custer, 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.