As of 09:57 MDT

Weather in Long Valley, SD

58°Current weather

Long Valley, Tuesday, 20 October, 09:57

Clear. Feels like 56°. High 74°, low 44°.

Pressure30.06 inHg
Wind13.2 mph S
Humidity63%
Visibility6.2 mi
Dew point45°

Monthly outlook for Long Valley, SD: average high 59.9°, average low 42.1°. That is 2.3° above the climate normal for October. Precipitation is expected on 3 days (about 0.7 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (81.1°), the coolest 27 October (24.2°).

59.9°/42.1°
Average high / low
+2.3°
Above normal
3 / 3
Wet days / normal
0.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
20 October – 29 October58.2°58°+0.1°
30 October – 8 November62.8°51.8°+6.1°
9 November – 18 Novemberat normal47°—

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).

Wed, 2168° / 45°0Partly cloudy
68 °Partly cloudy

Long Valley, Wednesday, 21 October

Partly cloudy. High 68°, low 45°.

Pressure30.21 inHg
Wind4 mph N
Humidity62%
Visibility6.2 mi
Dew point48°
Thu, 2278° / 51°0Mostly clear
78 °Mostly clear

Long Valley, Thursday, 22 October

Mostly clear. High 78°, low 51°.

Pressure29.97 inHg
Wind15 mph S
Humidity52%
Visibility6.2 mi
Dew point55°
Fri, 2381° / 61°0Overcast
81 °Overcast

Long Valley, Friday, 23 October

Overcast. High 81°, low 61°.

Pressure29.71 inHg
Wind17.1 mph S
Humidity43%
Visibility6.2 mi
Dew point53°
Sat, 2455° / 44°0.18Rain
55 °Rain

Long Valley, Saturday, 24 October

Rain. High 55°, low 44°.

Pressure30.39 inHg
Wind18.9 mph NW
Humidity45%
Visibility—
Dew point30°
Sun, 2545° / 38°0.44Snow
45 °Snow

Long Valley, Sunday, 25 October

Snow. High 45°, low 38°.

Pressure30.45 inHg
Wind10.8 mph E
Humidity72%
Visibility—
Dew point36°
Mon, 2637° / 32°0.1Light snow
37 °Light snow

Long Valley, Monday, 26 October

Light snow. High 37°, low 32°.

Pressure30.53 inHg
Wind14.6 mph NW
Humidity77%
Visibility—
Dew point29°
Tue, 2743° / 24°0Clear
43 °Clear

Long Valley, Tuesday, 27 October

Clear. High 43°, low 24°.

Pressure30.68 inHg
Wind14.2 mph NW
Humidity45%
Visibility—
Dew point15°
Wed, 2852° / 36°0Clear
52 °Clear

Long Valley, Wednesday, 28 October

Clear. High 52°, low 36°.

Pressure30.21 inHg
Wind20.2 mph NW
Humidity31%
Visibility—
Dew point18°
Thu, 2950° / 34°0Clear
50 °Clear

Long Valley, Thursday, 29 October

Clear. High 50°, low 34°.

Pressure30.33 inHg
Wind9.4 mph NW
Humidity41%
Visibility—
Dew point22°
Fri, 3057° / 34°0Clear
57 °Clear

Long Valley, Friday, 30 October

Clear. High 57°, low 34°.

Pressure30.27 inHg
Wind22.9 mph S
Humidity32%
Visibility—
Dew point21°
Sat, 3157° / 43°0Overcast
57 °Overcast

Long Valley, Saturday, 31 October

Overcast. High 57°, low 43°.

Pressure30.00 inHg
Wind22.1 mph S
Humidity32%
Visibility—
Dew point25°
Sun, 0160° / 35°0Partly cloudy
60 °Partly cloudy

Long Valley, Sunday, 1 November

Partly cloudy. High 60°, low 35°.

Pressure30.09 inHg
Wind21.3 mph S
Humidity33%
Visibility—
Dew point23°
Mon, 0274° / 52°0Overcast
74 °Overcast

Long Valley, Monday, 2 November

Overcast. High 74°, low 52°.

Pressure29.74 inHg
Wind21.5 mph S
Humidity32%
Visibility—
Dew point36°
Tue, 0365° / 51°0Overcast
65 °Overcast

Long Valley, Tuesday, 3 November

Overcast. High 65°, low 51°.

Pressure29.83 inHg
Wind12.1 mph W
Humidity43%
Visibility—
Dew point37°
Wed, 0463° / 49°0.02Light rain
63 °Light rain

Long Valley, Wednesday, 4 November

Light rain. High 63°, low 49°.

Pressure30.00 inHg
Wind9.2 mph W
Humidity41%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0553° / 34°0.04Climate normal
53 °Climate normal

Long Valley, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low34°
Average precipitation0.04 in
Chance of precipitation12%
Record high77° (2001)
Record low12° (2003)
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)

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.