As of 12:47 MDT

Weather in Long Valley, SD

67°Current weather

Long Valley, Wednesday, 21 October, 12:47

Clear. Feels like 65°. High 68°, low 45°.

Pressure30.18 inHg
Wind4 mph NW
Humidity51%
Visibility6.2 mi
Dew point48°

Monthly outlook for Long Valley, SD: average high 58.9°, average low 42.5°. That is 2° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (82°), the coolest 5 November (32.5°).

58.9°/42.5°
Average high / low
+2°
Above normal
2 / 3
Wet days / normal
0.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
21 October – 30 October60.4°57.1°+1.8°
31 October – 9 November56.3°51.2°+2.9°
10 November – 19 Novemberat normal46.8°—

October records over 66 years

93.6°4 October 1963All-time high
-2.9°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Wanblee (11 mi).

Thu, 2279° / 53°0Mostly clear
79 °Mostly clear

Long Valley, Thursday, 22 October

Mostly clear. High 79°, low 53°.

Pressure29.97 inHg
Wind14.3 mph S
Humidity46%
Visibility6.2 mi
Dew point54°
Fri, 2382° / 60°0Overcast
82 °Overcast

Long Valley, Friday, 23 October

Overcast. High 82°, low 60°.

Pressure29.71 inHg
Wind18.3 mph S
Humidity46%
Visibility6.2 mi
Dew point55°
Sat, 2461° / 46°0.07Light rain
61 °Light rain

Long Valley, Saturday, 24 October

Light rain. High 61°, low 46°.

Pressure30.33 inHg
Wind15.1 mph N
Humidity64%
Visibility6.2 mi
Dew point36°
Sun, 2547° / 41°0.6Rain
47 °Rain

Long Valley, Sunday, 25 October

Rain. High 47°, low 41°.

Pressure30.36 inHg
Wind10.4 mph NE
Humidity92%
Visibility4.4 mi
Dew point40°
Mon, 2641° / 38°0Overcast
41 °Overcast

Long Valley, Monday, 26 October

Overcast. High 41°, low 38°.

Pressure30.47 inHg
Wind13.5 mph N
Humidity77%
Visibility—
Dew point32°
Tue, 2761° / 38°0Partly cloudy
61 °Partly cloudy

Long Valley, Tuesday, 27 October

Partly cloudy. High 61°, low 38°.

Pressure30.06 inHg
Wind13 mph S
Humidity58%
Visibility—
Dew point37°
Wed, 2851° / 41°0Partly cloudy
51 °Partly cloudy

Long Valley, Wednesday, 28 October

Partly cloudy. High 51°, low 41°.

Pressure30.18 inHg
Wind19.8 mph N
Humidity44%
Visibility—
Dew point28°
Thu, 2956° / 39°0Overcast
56 °Overcast

Long Valley, Thursday, 29 October

Overcast. High 56°, low 39°.

Pressure30.21 inHg
Wind12.6 mph S
Humidity30%
Visibility—
Dew point20°
Fri, 3058° / 45°0Overcast
58 °Overcast

Long Valley, Friday, 30 October

Overcast. High 58°, low 45°.

Pressure29.74 inHg
Wind23 mph S
Humidity61%
Visibility—
Dew point41°
Sat, 3165° / 50°0Mostly clear
65 °Mostly clear

Long Valley, Saturday, 31 October

Mostly clear. High 65°, low 50°.

Pressure29.44 inHg
Wind21.9 mph S
Humidity40%
Visibility—
Dew point37°
Sun, 0150° / 39°0Clear
50 °Clear

Long Valley, Sunday, 1 November

Clear. High 50°, low 39°.

Pressure30.12 inHg
Wind20.1 mph NW
Humidity46%
Visibility—
Dew point27°
Mon, 0258° / 38°0Partly cloudy
58 °Partly cloudy

Long Valley, Monday, 2 November

Partly cloudy. High 58°, low 38°.

Pressure30.15 inHg
Wind10.6 mph S
Humidity34%
Visibility—
Dew point24°
Tue, 0354° / 40°0Overcast
54 °Overcast

Long Valley, Tuesday, 3 November

Overcast. High 54°, low 40°.

Pressure30.15 inHg
Wind6.5 mph N
Humidity36%
Visibility—
Dew point25°
Wed, 0452° / 35°0Overcast
52 °Overcast

Long Valley, Wednesday, 4 November

Overcast. High 52°, low 35°.

Pressure29.94 inHg
Wind5.4 mph NE
Humidity39%
Visibility—
Dew point23°
Thu, 0559° / 32°0Clear
59 °Clear

Long Valley, Thursday, 5 November

Clear. High 59°, low 32°.

Pressure29.56 inHg
Wind9.7 mph NW
Humidity30%
Visibility—
Dew point19°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0651° / 33°0.04Climate normal
51 °Climate normal

Long Valley, Friday, 6 November

Climate normal for this date — 60-year average.

Average high51°
Average low33°
Average precipitation0.04 in
Chance of precipitation18%
Record high78° (2020)
Record low2° (1991)
Sat, 0751° / 32°0.04Climate normal
51 °Climate normal

Long Valley, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high51°
Average low32°
Average precipitation0.04 in
Chance of precipitation15%
Record high77° (1999)
Record low-1° (1991)
Sun, 0850° / 33°0.07Climate normal
50 °Climate normal

Long Valley, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high50°
Average low33°
Average precipitation0.07 in
Chance of precipitation18%
Record high79° (1999)
Record low10° (2000)
Mon, 0946° / 31°0.06Climate normal
46 °Climate normal

Long Valley, Monday, 9 November

Climate normal for this date — 60-year average.

Average high46°
Average low31°
Average precipitation0.06 in
Chance of precipitation22%
Record high73° (2016)
Record low6° (2000)
Tue, 1047° / 28°0.04Climate normal
47 °Climate normal

Long Valley, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high47°
Average low28°
Average precipitation0.04 in
Chance of precipitation18%
Record high69° (2005)
Record low-4° (1986)
Wed, 1145° / 29°0.03Climate normal
45 °Climate normal

Long Valley, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high45°
Average low29°
Average precipitation0.03 in
Chance of precipitation22%
Record high72° (2005)
Record low-3° (1986)
Thu, 1248° / 29°0.04Climate normal
48 °Climate normal

Long Valley, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation15%
Record high71° (1999)
Record low-14° (1986)
Fri, 1348° / 30°0.04Climate normal
48 °Climate normal

Long Valley, Friday, 13 November

Climate normal for this date — 60-year average.

Average high48°
Average low30°
Average precipitation0.04 in
Chance of precipitation20%
Record high73° (2025)
Record low-19° (1986)
Sat, 1447° / 31°0.02Climate normal
47 °Climate normal

Long Valley, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high47°
Average low31°
Average precipitation0.02 in
Chance of precipitation10%
Record high74° (2025)
Record low6° (1985)
Sun, 1547° / 29°0.02Climate normal
47 °Climate normal

Long Valley, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.02 in
Chance of precipitation15%
Record high70° (1963)
Record low3° (2014)
Mon, 1649° / 29°0.02Climate normal
49 °Climate normal

Long Valley, 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-1° (2014)
Tue, 1746° / 29°0.02Climate normal
46 °Climate normal

Long Valley, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high46°
Average low29°
Average precipitation0.02 in
Chance of precipitation25%
Record high69° (1999)
Record low-6° (2000)
Wed, 1847° / 29°0.04Climate normal
47 °Climate normal

Long Valley, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.04 in
Chance of precipitation18%
Record high69° (2008)
Record low0° (2014)
Thu, 1944° / 29°0.03Climate normal
44 °Climate normal

Long Valley, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high44°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high66° (1989)
Record low2° (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 Long Valley, 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 Long Valley, 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.