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As of 01:58 MDT

Weather in Hermosa, SD

48°Current weather

Hermosa, Thursday, 15 October, 01:58

Rain. Feels like 48°. High 52°, low 38°.

Pressure30.15 inHg
Wind1.5 mph W
Humidity87%
Visibility3.6 mi
Dew point44°

Monthly outlook for Hermosa, SD: average high 61.4°, average low 41.6°. That is 2° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 17 October (76.7°), the coolest 16 October (29.5°).

61.4°/41.6°
Average high / low
+2°
Above normal
1 / 3
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
15 October – 24 October62.6°59.3°+1.8°
25 October – 3 November59.6°54°+3.1°
4 November – 13 Novemberat normal49.2°—

October records over 66 years

90.3°3 October 2025All-time high
-4.2°26 October 2020All-time low
Fri, 1656° / 30°0Clear
56 °Clear

Hermosa, Friday, 16 October

Clear. High 56°, low 30°.

Pressure30.68 inHg
Wind8.8 mph S
Humidity49%
Visibility6.2 mi
Dew point25°
Sat, 1777° / 46°0Clear
77 °Clear

Hermosa, Saturday, 17 October

Clear. High 77°, low 46°.

Pressure30.03 inHg
Wind4.9 mph SE
Humidity23%
Visibility6.2 mi
Dew point30°
Sun, 1864° / 49°0Clear
64 °Clear

Hermosa, Sunday, 18 October

Clear. High 64°, low 49°.

Pressure30.15 inHg
Wind10.8 mph N
Humidity38%
Visibility6.2 mi
Dew point37°
Mon, 1962° / 41°0Clear
62 °Clear

Hermosa, Monday, 19 October

Clear. High 62°, low 41°.

Pressure30.09 inHg
Wind8.9 mph SE
Humidity54%
Visibility—
Dew point39°
Tue, 2073° / 47°0Clear
73 °Clear

Hermosa, Tuesday, 20 October

Clear. High 73°, low 47°.

Pressure29.88 inHg
Wind13.3 mph SE
Humidity35%
Visibility—
Dew point38°
Wed, 2173° / 52°0Mostly clear
73 °Mostly clear

Hermosa, Wednesday, 21 October

Mostly clear. High 73°, low 52°.

Pressure29.77 inHg
Wind8.5 mph SE
Humidity35%
Visibility—
Dew point37°
Thu, 2268° / 48°0Overcast
68 °Overcast

Hermosa, Thursday, 22 October

Overcast. High 68°, low 48°.

Pressure29.50 inHg
Wind21.5 mph W
Humidity38%
Visibility—
Dew point40°
Fri, 2354° / 41°0.03Light rain
54 °Light rain

Hermosa, Friday, 23 October

Light rain. High 54°, low 41°.

Pressure29.83 inHg
Wind13.8 mph NW
Humidity32%
Visibility—
Dew point24°
Sat, 2446° / 33°0Overcast
46 °Overcast

Hermosa, Saturday, 24 October

Overcast. High 46°, low 33°.

Pressure30.42 inHg
Wind17.1 mph N
Humidity36%
Visibility—
Dew point18°
Sun, 2557° / 32°0Mostly clear
57 °Mostly clear

Hermosa, Sunday, 25 October

Mostly clear. High 57°, low 32°.

Pressure30.21 inHg
Wind17.7 mph NW
Humidity13%
Visibility—
Dew point2°
Mon, 2653° / 40°0Overcast
53 °Overcast

Hermosa, Monday, 26 October

Overcast. High 53°, low 40°.

Pressure30.12 inHg
Wind19.5 mph NW
Humidity36%
Visibility—
Dew point25°
Tue, 2760° / 36°0Clear
60 °Clear

Hermosa, Tuesday, 27 October

Clear. High 60°, low 36°.

Pressure30.00 inHg
Wind13.5 mph SW
Humidity24%
Visibility—
Dew point17°
Wed, 2855° / 46°0Overcast
55 °Overcast

Hermosa, Wednesday, 28 October

Overcast. High 55°, low 46°.

Pressure29.80 inHg
Wind14.9 mph NW
Humidity60%
Visibility—
Dew point39°
Thu, 2963° / 36°0Mostly clear
63 °Mostly clear

Hermosa, Thursday, 29 October

Mostly clear. High 63°, low 36°.

Pressure29.94 inHg
Wind20.7 mph S
Humidity48%
Visibility—
Dew point33°
Fri, 3070° / 51°0Overcast
70 °Overcast

Hermosa, Friday, 30 October

Overcast. High 70°, low 51°.

Pressure29.41 inHg
Wind20.7 mph W
Humidity19%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3152° / 34°0.03Climate normal
52 °Climate normal

Hermosa, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high52°
Average low34°
Average precipitation0.03 in
Chance of precipitation15%
Record high74° (1990)
Record low3° (1991)
Sun, 0151° / 33°0.05Climate normal
51 °Climate normal

Hermosa, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high51°
Average low33°
Average precipitation0.05 in
Chance of precipitation18%
Record high72° (1965)
Record low3° (2002)
Mon, 0251° / 32°0.04Climate normal
51 °Climate normal

Hermosa, Monday, 2 November

Climate normal for this date — 60-year average.

Average high51°
Average low32°
Average precipitation0.04 in
Chance of precipitation20%
Record high75° (2008)
Record low-2° (1991)
Tue, 0351° / 33°0.04Climate normal
51 °Climate normal

Hermosa, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high51°
Average low33°
Average precipitation0.04 in
Chance of precipitation20%
Record high71° (2020)
Record low2° (1991)
Wed, 0453° / 32°0.01Climate normal
53 °Climate normal

Hermosa, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high53°
Average low32°
Average precipitation0.01 in
Chance of precipitation10%
Record high76° (1978)
Record low7° (1995)
Thu, 0552° / 33°0.03Climate normal
52 °Climate normal

Hermosa, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high52°
Average low33°
Average precipitation0.03 in
Chance of precipitation13%
Record high76° (2020)
Record low1° (2003)
Fri, 0651° / 32°0.04Climate normal
51 °Climate normal

Hermosa, Friday, 6 November

Climate normal for this date — 60-year average.

Average high51°
Average low32°
Average precipitation0.04 in
Chance of precipitation13%
Record high75° (2020)
Record low-3° (2003)
Sat, 0752° / 32°0.03Climate normal
52 °Climate normal

Hermosa, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high52°
Average low32°
Average precipitation0.03 in
Chance of precipitation13%
Record high75° (1999)
Record low3° (1991)
Sun, 0850° / 31°0.06Climate normal
50 °Climate normal

Hermosa, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high50°
Average low31°
Average precipitation0.06 in
Chance of precipitation20%
Record high77° (1999)
Record low3° (2003)
Mon, 0946° / 29°0.06Climate normal
46 °Climate normal

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°0.04Climate normal
47 °Climate normal

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°0.02Climate normal
45 °Climate normal

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°0.03Climate normal
48 °Climate normal

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°0.04Climate normal
48 °Climate normal

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)

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.