As of 08:41 MDT

Weather in Long Valley, SD

44°Current weather

Long Valley, Monday, 19 October, 08:41

Clear. Feels like 42°. High 62°, low 40°.

Pressure30.27 inHg
Wind3.5 mph NE
Humidity68%
Visibility6.2 mi
Dew point34°

Monthly outlook for Long Valley, SD: average high 59.7°, average low 42.2°. That is 1.8° above the climate normal for October. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 23 October (80°), the coolest 28 October (30°).

59.7°/42.2°
Average high / low
+1.8°
Above normal
2 / 3
Wet days / normal
0.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
19 October – 28 October64°58.7°+2.9°
29 October – 7 November52.6°52.3°+0.2°
8 November – 17 Novemberat normal47.4°—

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).

Tue, 2074° / 42°0Clear
74 °Clear

Long Valley, Tuesday, 20 October

Clear. High 74°, low 42°.

Pressure30.03 inHg
Wind12.5 mph S
Humidity47%
Visibility6.2 mi
Dew point46°
Wed, 2166° / 48°0Clear
66 °Clear

Long Valley, Wednesday, 21 October

Clear. High 66°, low 48°.

Pressure30.18 inHg
Wind4.6 mph N
Humidity68%
Visibility6.2 mi
Dew point51°
Thu, 2277° / 55°0Partly cloudy
77 °Partly cloudy

Long Valley, Thursday, 22 October

Partly cloudy. High 77°, low 55°.

Pressure30.00 inHg
Wind13.7 mph S
Humidity58%
Visibility6.2 mi
Dew point56°
Fri, 2380° / 62°0.04Light rain
80 °Light rain

Long Valley, Friday, 23 October

Light rain. High 80°, low 62°.

Pressure29.62 inHg
Wind18.7 mph S
Humidity47%
Visibility—
Dew point52°
Sat, 2461° / 49°0Overcast
61 °Overcast

Long Valley, Saturday, 24 October

Overcast. High 61°, low 49°.

Pressure30.18 inHg
Wind16.7 mph NW
Humidity49%
Visibility—
Dew point36°
Sun, 2565° / 44°0Mostly clear
65 °Mostly clear

Long Valley, Sunday, 25 October

Mostly clear. High 65°, low 44°.

Pressure30.30 inHg
Wind14.5 mph S
Humidity37%
Visibility—
Dew point32°
Mon, 2660° / 44°0Clear
60 °Clear

Long Valley, Monday, 26 October

Clear. High 60°, low 44°.

Pressure29.94 inHg
Wind19.1 mph S
Humidity43%
Visibility—
Dew point37°
Tue, 2742° / 31°0Overcast
42 °Overcast

Long Valley, Tuesday, 27 October

Overcast. High 42°, low 31°.

Pressure30.50 inHg
Wind19.2 mph N
Humidity36%
Visibility—
Dew point15°
Wed, 2853° / 30°0Clear
53 °Clear

Long Valley, Wednesday, 28 October

Clear. High 53°, low 30°.

Pressure30.30 inHg
Wind8.3 mph S
Humidity35%
Visibility—
Dew point21°
Thu, 2958° / 37°0Overcast
58 °Overcast

Long Valley, Thursday, 29 October

Overcast. High 58°, low 37°.

Pressure29.91 inHg
Wind8.2 mph NE
Humidity41%
Visibility—
Dew point29°
Fri, 3050° / 37°0Overcast
50 °Overcast

Long Valley, Friday, 30 October

Overcast. High 50°, low 37°.

Pressure29.97 inHg
Wind9 mph SE
Humidity33%
Visibility—
Dew point19°
Sat, 3157° / 42°0.01Light rain
57 °Light rain

Long Valley, Saturday, 31 October

Light rain. High 57°, low 42°.

Pressure29.77 inHg
Wind13.9 mph SE
Humidity45%
Visibility—
Dew point35°
Sun, 0149° / 36°0Clear
49 °Clear

Long Valley, Sunday, 1 November

Clear. High 49°, low 36°.

Pressure30.21 inHg
Wind9 mph SE
Humidity45%
Visibility—
Dew point24°
Mon, 0246° / 37°0.1Light rain
46 °Light rain

Long Valley, Monday, 2 November

Light rain. High 46°, low 37°.

Pressure30.00 inHg
Wind20.9 mph S
Humidity64%
Visibility—
Dew point34°
Tue, 0355° / 40°0Overcast
55 °Overcast

Long Valley, Tuesday, 3 November

Overcast. High 55°, low 40°.

Pressure30.00 inHg
Wind15.1 mph NW
Humidity71%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0453° / 33°0.02Climate normal
53 °Climate normal

Long Valley, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high53°
Average low33°
Average precipitation0.02 in
Chance of precipitation15%
Record high77° (1978)
Record low-3° (1991)
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)

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.