As of 19:57 MDT

Weather in Hermosa, SD

40°

Hermosa, Saturday, 24 October, 19:57

Overcast. Feels like 38°. High 52°, low 39°.

Pressure30.36 inHg

Wind3.3 mph SE

Humidity34%

Visibility6.2 mi

Dew point16°

See detailed hourly forecast

Monthly outlook for Hermosa, SD: average high 60.9°, average low 43.7°. That is 4.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 6 November (72°), the coolest 26 October (32.7°).

60.9°/43.7°

Average high / low

+4.1°

Above normal

2 / 3

Wet days / normal

0.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
24 October – 2 November	58°	54.6°	+1.9°
3 November – 12 November	65.7°	49.5°	+9°
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° / 37°

0.07

46 °

Hermosa, Sunday, 25 October

Light rain. High 46°, low 37°.

Pressure30.39 inHg

Wind5.1 mph E

Humidity58%

Visibility6.2 mi

Dew point28°

Mon, 2638° / 33°

0.35

38 °

Hermosa, Monday, 26 October

Snow. High 38°, low 33°.

Pressure30.39 inHg

Wind7.2 mph N

Humidity98%

Visibility1.1 mi

Dew point35°

Tue, 2760° / 33°

60 °

Hermosa, Tuesday, 27 October

Partly cloudy. High 60°, low 33°.

Pressure29.77 inHg

Wind12.9 mph S

Humidity59%

Visibility6.2 mi

Dew point38°

Wed, 2861° / 35°

61 °

Hermosa, Wednesday, 28 October

Mostly clear. High 61°, low 35°.

Pressure29.94 inHg

Wind5.7 mph S

Humidity39%

Visibility6.2 mi

Dew point34°

Thu, 2965° / 38°

65 °

Hermosa, Thursday, 29 October

Partly cloudy. High 65°, low 38°.

Pressure29.94 inHg

Wind12.7 mph S

Humidity49%

Visibility—

Dew point38°

Fri, 3066° / 48°

66 °

Hermosa, Friday, 30 October

Overcast. High 66°, low 48°.

Pressure29.91 inHg

Wind12.4 mph W

Humidity54%

Visibility—

Dew point41°

Sat, 3168° / 51°

68 °

Hermosa, Saturday, 31 October

Overcast. High 68°, low 51°.

Pressure29.68 inHg

Wind5.8 mph NW

Humidity37%

Visibility—

Dew point35°

Sun, 0165° / 46°

65 °

Hermosa, Sunday, 1 November

Overcast. High 65°, low 46°.

Pressure29.91 inHg

Wind8.8 mph W

Humidity39%

Visibility—

Dew point34°

Mon, 0258° / 45°

58 °

Hermosa, Monday, 2 November

Clear. High 58°, low 45°.

Pressure30.18 inHg

Wind7.5 mph SE

Humidity37%

Visibility—

Dew point30°

Tue, 0365° / 47°

65 °

Hermosa, Tuesday, 3 November

Clear. High 65°, low 47°.

Pressure29.83 inHg

Wind19.1 mph S

Humidity45%

Visibility—

Dew point38°

Wed, 0460° / 46°

60 °

Hermosa, Wednesday, 4 November

Clear. High 60°, low 46°.

Pressure29.91 inHg

Wind19.8 mph NW

Humidity25%

Visibility—

Dew point21°

Thu, 0566° / 46°

66 °

Hermosa, Thursday, 5 November

Overcast. High 66°, low 46°.

Pressure29.80 inHg

Wind22.7 mph SW

Humidity23%

Visibility—

Dew point22°

Fri, 0672° / 62°

72 °

Hermosa, Friday, 6 November

Overcast. High 72°, low 62°.

Pressure29.68 inHg

Wind32 mph W

Humidity22%

Visibility—

Dew point29°

Sat, 0766° / 47°

66 °

Hermosa, Saturday, 7 November

Overcast. High 66°, low 47°.

Pressure29.80 inHg

Wind26.3 mph W

Humidity39%

Visibility—

Dew point38°

Sun, 0866° / 47°

66 °

Hermosa, Sunday, 8 November

Partly cloudy. High 66°, low 47°.

Pressure30.06 inHg

Wind7.8 mph S

Humidity40%

Visibility—

Dew point39°

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.