As of 11:25 MDT

Weather in Hermosa, SD

53°

Hermosa, Thursday, 29 October, 11:25

Clear. Feels like 51°. High 56°, low 39°.

Pressure30.09 inHg

Wind3.9 mph E

Humidity51%

Visibility6.2 mi

Dew point35°

See detailed hourly forecast

Monthly outlook for Hermosa, SD: average high 57.9°, average low 41.4°. That is 4.2° above the climate normal for October. Precipitation is expected on 1 day (about 0.5 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 11 November (67.3°), the coolest 6 November (36.8°).

57.9°/41.4°

Average high / low

+4.2°

Above normal

1 / 3

Wet days / normal

0.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
29 October – 7 November	56.6°	52.1°	+2.5°
8 November – 17 November	60°	47.5°	+6.9°
18 November – 27 November	at normal	43.4°	—

October records over 66 years

90.3°3 October 2025All-time high

-4.2°26 October 2020All-time low

Fri, 3058° / 41°

58 °

Hermosa, Friday, 30 October

Overcast. High 58°, low 41°.

Pressure30.06 inHg

Wind9.4 mph S

Humidity82%

Visibility3.8 mi

Dew point48°

Sat, 3167° / 46°

67 °

Hermosa, Saturday, 31 October

Overcast. High 67°, low 46°.

Pressure29.91 inHg

Wind12.5 mph S

Humidity55%

Visibility6.2 mi

Dew point49°

Sun, 0160° / 45°

0.01

60 °

Hermosa, Sunday, 1 November

Light rain. High 60°, low 45°.

Pressure29.97 inHg

Wind3.8 mph E

Humidity69%

Visibility6.2 mi

Dew point48°

Mon, 0256° / 42°

0.52

56 °

Hermosa, Monday, 2 November

Rain. High 56°, low 42°.

Pressure29.65 inHg

Wind20.9 mph NW

Humidity83%

Visibility—

Dew point50°

Tue, 0352° / 38°

0.01

52 °

Hermosa, Tuesday, 3 November

Light rain. High 52°, low 38°.

Pressure30.21 inHg

Wind20 mph NW

Humidity49%

Visibility—

Dew point31°

Wed, 0460° / 39°

60 °

Hermosa, Wednesday, 4 November

Overcast. High 60°, low 39°.

Pressure30.03 inHg

Wind8.9 mph NE

Humidity40%

Visibility—

Dew point29°

Thu, 0549° / 37°

49 °

Hermosa, Thursday, 5 November

Clear. High 49°, low 37°.

Pressure30.06 inHg

Wind6.9 mph N

Humidity50%

Visibility—

Dew point28°

Fri, 0652° / 37°

52 °

Hermosa, Friday, 6 November

Overcast. High 52°, low 37°.

Pressure29.97 inHg

Wind13 mph S

Humidity58%

Visibility—

Dew point33°

Sat, 0757° / 40°

57 °

Hermosa, Saturday, 7 November

Partly cloudy. High 57°, low 40°.

Pressure30.03 inHg

Wind9.9 mph NE

Humidity50%

Visibility—

Dew point34°

Sun, 0863° / 41°

63 °

Hermosa, Sunday, 8 November

Clear. High 63°, low 41°.

Pressure30.03 inHg

Wind9.4 mph S

Humidity31%

Visibility—

Dew point27°

Mon, 0960° / 45°

60 °

Hermosa, Monday, 9 November

Overcast. High 60°, low 45°.

Pressure30.00 inHg

Wind6.9 mph NW

Humidity22%

Visibility—

Dew point18°

Tue, 1057° / 43°

57 °

Hermosa, Tuesday, 10 November

Overcast. High 57°, low 43°.

Pressure30.09 inHg

Wind11.5 mph S

Humidity39%

Visibility—

Dew point29°

Wed, 1167° / 47°

67 °

Hermosa, Wednesday, 11 November

Overcast. High 67°, low 47°.

Pressure29.53 inHg

Wind16.3 mph SW

Humidity23%

Visibility—

Dew point26°

Thu, 1262° / 43°

62 °

Hermosa, Thursday, 12 November

Overcast. High 62°, low 43°.

Pressure29.15 inHg

Wind20.6 mph NW

Humidity34%

Visibility—

Dew point30°

Fri, 1350° / 39°

50 °

Hermosa, Friday, 13 November

Overcast. High 50°, low 39°.

Pressure29.47 inHg

Wind14.5 mph NW

Humidity35%

Visibility—

Dew point22°

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

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)

Tue, 2444° / 25°

0.02

44 °

Hermosa, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high44°

Average low25°

Average precipitation0.02 in

Chance of precipitation20%

Record high68° (1990)

Record low-4° (2003)

Wed, 2543° / 24°

0.03

43 °

Hermosa, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high43°

Average low24°

Average precipitation0.03 in

Chance of precipitation15%

Record high66° (1960)

Record low-14° (1993)

Thu, 2640° / 23°

0.06

40 °

Hermosa, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high40°

Average low23°

Average precipitation0.06 in

Chance of precipitation32%

Record high68° (2017)

Record low-6° (1975)

Fri, 2739° / 22°

0.02

39 °

Hermosa, Friday, 27 November

Climate normal for this date — 60-year average.

Average high39°

Average low22°

Average precipitation0.02 in

Chance of precipitation17%

Record high69° (2017)

Record low-12° (1976)

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.