As of 15:21 MDT

Weather in Long Valley, SD

72°Current weather

Long Valley, Wednesday, 21 October, 15:21

Clear. Feels like 70°. High 72°, low 45°.

Pressure30.15 inHg
Wind4.3 mph NE
Humidity45%
Visibility6.2 mi
Dew point50°

Monthly outlook for Long Valley, SD: average high 59.4°, average low 44.2°. That is 2.3° above the climate normal for October. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (83.1°), the coolest 29 October (32.3°).

59.4°/44.2°
Average high / low
+2.3°
Above normal
5 / 3
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
21 October – 30 October59.6°57.1°+1.4°
31 October – 9 November58.9°51.2°+4.3°
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° / 51°0Partly cloudy
79 °Partly cloudy

Long Valley, Thursday, 22 October

Partly cloudy. High 79°, low 51°.

Pressure29.97 inHg
Wind14.7 mph S
Humidity44%
Visibility6.2 mi
Dew point53°
Fri, 2383° / 59°0.01Light rain
83 °Light rain

Long Valley, Friday, 23 October

Light rain. High 83°, low 59°.

Pressure29.68 inHg
Wind17.4 mph S
Humidity43%
Visibility6.2 mi
Dew point54°
Sat, 2462° / 45°0.22Rain
62 °Rain

Long Valley, Saturday, 24 October

Rain. High 62°, low 45°.

Pressure30.36 inHg
Wind14.6 mph NW
Humidity63%
Visibility3.6 mi
Dew point36°
Sun, 2547° / 39°0.56Rain
47 °Rain

Long Valley, Sunday, 25 October

Rain. High 47°, low 39°.

Pressure30.36 inHg
Wind10.8 mph NE
Humidity94%
Visibility2.9 mi
Dew point40°
Mon, 2642° / 36°0Overcast
42 °Overcast

Long Valley, Monday, 26 October

Overcast. High 42°, low 36°.

Pressure30.47 inHg
Wind11.4 mph N
Humidity71%
Visibility—
Dew point31°
Tue, 2744° / 36°0Overcast
44 °Overcast

Long Valley, Tuesday, 27 October

Overcast. High 44°, low 36°.

Pressure30.30 inHg
Wind12.5 mph NW
Humidity77%
Visibility—
Dew point35°
Wed, 2848° / 33°0Clear
48 °Clear

Long Valley, Wednesday, 28 October

Clear. High 48°, low 33°.

Pressure30.42 inHg
Wind14.7 mph NW
Humidity51%
Visibility—
Dew point26°
Thu, 2954° / 32°0Overcast
54 °Overcast

Long Valley, Thursday, 29 October

Overcast. High 54°, low 32°.

Pressure30.24 inHg
Wind21.8 mph S
Humidity42%
Visibility—
Dew point26°
Fri, 3066° / 45°0Clear
66 °Clear

Long Valley, Friday, 30 October

Clear. High 66°, low 45°.

Pressure29.80 inHg
Wind20.6 mph S
Humidity31%
Visibility—
Dew point28°
Sat, 3167° / 48°0Overcast
67 °Overcast

Long Valley, Saturday, 31 October

Overcast. High 67°, low 48°.

Pressure29.83 inHg
Wind9 mph SW
Humidity29%
Visibility—
Dew point29°
Sun, 0155° / 51°0.24Light rain
55 °Light rain

Long Valley, Sunday, 1 November

Light rain. High 55°, low 51°.

Pressure29.94 inHg
Wind15.7 mph SE
Humidity91%
Visibility—
Dew point51°
Mon, 0253° / 51°0.24Light rain
53 °Light rain

Long Valley, Monday, 2 November

Light rain. High 53°, low 51°.

Pressure30.06 inHg
Wind8.6 mph N
Humidity95%
Visibility—
Dew point50°
Tue, 0356° / 45°0.1Light rain
56 °Light rain

Long Valley, Tuesday, 3 November

Light rain. High 56°, low 45°.

Pressure30.30 inHg
Wind13 mph NE
Humidity55%
Visibility—
Dew point37°
Wed, 0463° / 44°0Clear
63 °Clear

Long Valley, Wednesday, 4 November

Clear. High 63°, low 44°.

Pressure30.09 inHg
Wind18.7 mph S
Humidity44%
Visibility—
Dew point35°
Thu, 0560° / 46°0Clear
60 °Clear

Long Valley, Thursday, 5 November

Clear. High 60°, low 46°.

Pressure30.03 inHg
Wind10.5 mph NW
Humidity42%
Visibility—
Dew point34°
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.