As of 05:37 MDT

Weather in Hermosa, SD

38°

Hermosa, Sunday, 25 October, 05:37

Overcast. Feels like 36°. High 48°, low 34°.

Pressure30.36 inHg

Wind3.3 mph S

Humidity56%

Visibility6.2 mi

Dew point25°

See detailed hourly forecast

Monthly outlook for Hermosa, SD: average high 57.3°, average low 40.8°. That is 2.5° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 7 November (70.6°), the coolest 27 October (30°).

57.3°/40.8°

Average high / low

+2.5°

Above normal

3 / 3

Wet days / normal

0.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
25 October – 3 November	54.8°	54°	+0.5°
4 November – 13 November	61.5°	49.2°	+6.8°
14 November – 23 November	at normal	46°	—

October records over 66 years

90.3°3 October 2025All-time high

-4.2°26 October 2020All-time low

Mon, 2637° / 31°

0.62

37 °

Hermosa, Monday, 26 October

Snow. High 37°, low 31°.

Pressure30.42 inHg

Wind5.2 mph N

Humidity99%

Visibility0.4 mi

Dew point34°

Tue, 2759° / 30°

59 °

Hermosa, Tuesday, 27 October

Clear. High 59°, low 30°.

Pressure29.74 inHg

Wind11.3 mph SW

Humidity51%

Visibility6.2 mi

Dew point34°

Wed, 2857° / 32°

57 °

Hermosa, Wednesday, 28 October

Clear. High 57°, low 32°.

Pressure29.94 inHg

Wind6.1 mph E

Humidity38%

Visibility6.2 mi

Dew point30°

Thu, 2961° / 38°

61 °

Hermosa, Thursday, 29 October

Clear. High 61°, low 38°.

Pressure30.06 inHg

Wind8 mph W

Humidity32%

Visibility—

Dew point28°

Fri, 3048° / 39°

0.01

48 °

Hermosa, Friday, 30 October

Light rain. High 48°, low 39°.

Pressure30.18 inHg

Wind4.9 mph SE

Humidity95%

Visibility—

Dew point41°

Sat, 3163° / 50°

63 °

Hermosa, Saturday, 31 October

Overcast. High 63°, low 50°.

Pressure29.85 inHg

Wind7.1 mph N

Humidity47%

Visibility—

Dew point39°

Sun, 0162° / 48°

62 °

Hermosa, Sunday, 1 November

Overcast. High 62°, low 48°.

Pressure29.80 inHg

Wind15.9 mph S

Humidity39%

Visibility—

Dew point34°

Mon, 0255° / 42°

55 °

Hermosa, Monday, 2 November

Overcast. High 55°, low 42°.

Pressure29.83 inHg

Wind22.3 mph N

Humidity31%

Visibility—

Dew point22°

Tue, 0358° / 41°

58 °

Hermosa, Tuesday, 3 November

Clear. High 58°, low 41°.

Pressure29.94 inHg

Wind11.8 mph E

Humidity26%

Visibility—

Dew point21°

Wed, 0455° / 40°

55 °

Hermosa, Wednesday, 4 November

Mostly clear. High 55°, low 40°.

Pressure29.88 inHg

Wind6.1 mph W

Humidity32%

Visibility—

Dew point23°

Thu, 0565° / 43°

65 °

Hermosa, Thursday, 5 November

Overcast. High 65°, low 43°.

Pressure29.88 inHg

Wind7.6 mph SW

Humidity24%

Visibility—

Dew point22°

Fri, 0668° / 48°

68 °

Hermosa, Friday, 6 November

Overcast. High 68°, low 48°.

Pressure29.71 inHg

Wind7.9 mph E

Humidity24%

Visibility—

Dew point28°

Sat, 0771° / 49°

71 °

Hermosa, Saturday, 7 November

Overcast. High 71°, low 49°.

Pressure29.50 inHg

Wind12.1 mph SW

Humidity32%

Visibility—

Dew point33°

Sun, 0858° / 44°

0.07

58 °

Hermosa, Sunday, 8 November

Light rain. High 58°, low 44°.

Pressure29.74 inHg

Wind19.7 mph NW

Humidity46%

Visibility—

Dew point33°

Mon, 0952° / 44°

52 °

Hermosa, Monday, 9 November

Partly cloudy. High 52°, low 44°.

Pressure29.85 inHg

Wind30.7 mph NW

Humidity41%

Visibility—

Dew point28°

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

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)

Mon, 2343° / 25°

0.02

43 °

Hermosa, Monday, 23 November

Climate normal for this date — 60-year average.

Average high43°

Average low25°

Average precipitation0.02 in

Chance of precipitation15%

Record high71° (2017)

Record low-12° (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.