As of 01:48 MDT

Weather in Hermosa, SD

47°

Hermosa, Saturday, 24 October, 01:48

Overcast. Feels like 42°. High 54°, low 36°.

Pressure30.03 inHg

Wind13 mph N

Humidity68%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Hermosa, SD: average high 61.7°, average low 42.5°. That is 4.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.9 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 8 November (77.8°), the coolest 27 October (29.6°).

61.7°/42.5°

Average high / low

+4.6°

Above normal

2 / 3

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
24 October – 2 November	55.8°	54.6°	+0.7°
3 November – 12 November	71.4°	49.5°	+12.1°
13 November – 22 November	at normal	46.5°	—

October records over 66 years

90.3°3 October 2025All-time high

-4.2°26 October 2020All-time low

Sun, 2546° / 34°

0.08

46 °

Hermosa, Sunday, 25 October

Light rain. High 46°, low 34°.

Pressure30.42 inHg

Wind6.4 mph E

Humidity74%

Visibility6.2 mi

Dew point35°

Mon, 2638° / 30°

0.82

38 °

Hermosa, Monday, 26 October

Snow. High 38°, low 30°.

Pressure30.39 inHg

Wind7.2 mph N

Humidity97%

Visibility0.6 mi

Dew point33°

Tue, 2751° / 30°

51 °

Hermosa, Tuesday, 27 October

Mostly clear. High 51°, low 30°.

Pressure29.83 inHg

Wind6.9 mph SW

Humidity54%

Visibility6.2 mi

Dew point33°

Wed, 2866° / 34°

66 °

Hermosa, Wednesday, 28 October

Overcast. High 66°, low 34°.

Pressure29.88 inHg

Wind9.9 mph S

Humidity44%

Visibility—

Dew point36°

Thu, 2957° / 41°

57 °

Hermosa, Thursday, 29 October

Overcast. High 57°, low 41°.

Pressure29.94 inHg

Wind9.1 mph E

Humidity65%

Visibility—

Dew point42°

Fri, 3067° / 45°

67 °

Hermosa, Friday, 30 October

Overcast. High 67°, low 45°.

Pressure29.88 inHg

Wind16.6 mph S

Humidity56%

Visibility—

Dew point43°

Sat, 3158° / 45°

0.03

58 °

Hermosa, Saturday, 31 October

Light rain. High 58°, low 45°.

Pressure29.83 inHg

Wind19.9 mph NW

Humidity57%

Visibility—

Dew point40°

Sun, 0157° / 39°

57 °

Hermosa, Sunday, 1 November

Partly cloudy. High 57°, low 39°.

Pressure30.18 inHg

Wind14.9 mph NW

Humidity17%

Visibility—

Dew point9°

Mon, 0263° / 40°

63 °

Hermosa, Monday, 2 November

Partly cloudy. High 63°, low 40°.

Pressure30.18 inHg

Wind8.1 mph NE

Humidity14%

Visibility—

Dew point11°

Tue, 0361° / 40°

61 °

Hermosa, Tuesday, 3 November

Overcast. High 61°, low 40°.

Pressure29.97 inHg

Wind9.8 mph NE

Humidity20%

Visibility—

Dew point17°

Wed, 0470° / 48°

70 °

Hermosa, Wednesday, 4 November

Overcast. High 70°, low 48°.

Pressure29.83 inHg

Wind11.5 mph E

Humidity15%

Visibility—

Dew point18°

Thu, 0571° / 52°

71 °

Hermosa, Thursday, 5 November

Overcast. High 71°, low 52°.

Pressure29.77 inHg

Wind6.1 mph NE

Humidity21%

Visibility—

Dew point23°

Fri, 0672° / 53°

72 °

Hermosa, Friday, 6 November

Overcast. High 72°, low 53°.

Pressure30.12 inHg

Wind15.5 mph N

Humidity27%

Visibility—

Dew point33°

Sat, 0776° / 55°

76 °

Hermosa, Saturday, 7 November

Overcast. High 76°, low 55°.

Pressure30.21 inHg

Wind8.3 mph W

Humidity28%

Visibility—

Dew point35°

Sun, 0878° / 56°

78 °

Hermosa, Sunday, 8 November

Clear. High 78°, low 56°.

Pressure29.94 inHg

Wind5.6 mph W

Humidity17%

Visibility—

Dew point27°

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

Mon, 0946° / 29°

0.06

46 °

Hermosa, Monday, 9 November

Climate normal for this date — 60-year average.

Average high46°

Average low29°

Average precipitation0.06 in

Chance of precipitation25%

Record high74° (2016)

Record low-3° (1966)

Tue, 1047° / 27°

0.04

47 °

Hermosa, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high47°

Average low27°

Average precipitation0.04 in

Chance of precipitation17%

Record high69° (2005)

Record low-7° (1986)

Wed, 1145° / 27°

0.02

45 °

Hermosa, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high45°

Average low27°

Average precipitation0.02 in

Chance of precipitation18%

Record high72° (2005)

Record low-7° (1986)

Thu, 1248° / 28°

0.03

48 °

Hermosa, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high48°

Average low28°

Average precipitation0.03 in

Chance of precipitation15%

Record high73° (1999)

Record low-8° (1986)

Fri, 1348° / 29°

0.04

48 °

Hermosa, Friday, 13 November

Climate normal for this date — 60-year average.

Average high48°

Average low29°

Average precipitation0.04 in

Chance of precipitation22%

Record high73° (1999)

Record low-16° (1986)

Sat, 1448° / 30°

0.02

48 °

Hermosa, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high48°

Average low30°

Average precipitation0.02 in

Chance of precipitation13%

Record high74° (2025)

Record low1° (1978)

Sun, 1548° / 29°

0.02

48 °

Hermosa, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high48°

Average low29°

Average precipitation0.02 in

Chance of precipitation13%

Record high71° (2021)

Record low1° (2014)

Mon, 1649° / 29°

0.02

49 °

Hermosa, Monday, 16 November

Climate normal for this date — 60-year average.

Average high49°

Average low29°

Average precipitation0.02 in

Chance of precipitation8%

Record high70° (2001)

Record low-8° (2014)

Tue, 1746° / 28°

0.02

46 °

Hermosa, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high46°

Average low28°

Average precipitation0.02 in

Chance of precipitation18%

Record high67° (1999)

Record low-1° (2000)

Wed, 1846° / 28°

0.03

46 °

Hermosa, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high46°

Average low28°

Average precipitation0.03 in

Chance of precipitation18%

Record high70° (2008)

Record low1° (2014)

Thu, 1945° / 28°

0.03

45 °

Hermosa, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high45°

Average low28°

Average precipitation0.03 in

Chance of precipitation12%

Record high66° (1989)

Record low-3° (1985)

Fri, 2045° / 26°

0.02

45 °

Hermosa, Friday, 20 November

Climate normal for this date — 60-year average.

Average high45°

Average low26°

Average precipitation0.02 in

Chance of precipitation13%

Record high64° (2006)

Record low-4° (1985)

Sat, 2145° / 26°

0.02

45 °

Hermosa, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high45°

Average low26°

Average precipitation0.02 in

Chance of precipitation12%

Record high67° (2012)

Record low-15° (1977)

Sun, 2245° / 26°

0.03

45 °

Hermosa, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high45°

Average low26°

Average precipitation0.03 in

Chance of precipitation17%

Record high68° (2017)

Record low-3° (1985)

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 Hermosa, 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 Hermosa, 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.