Monthly outlook for Long Valley, SD: average high 62.3°, average low 44.5°. That is 5.2° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 9 November (75°), the coolest 26 October (34.2°).
62.3°/44.5°
Average high / low
+5.2°
Above normal
2 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
60.3°
54.4°
+3.3°
4 November – 13 November
65.7°
49.2°
+9.1°
14 November – 23 November
at normal
45.6°
—
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).
Mon, 2641° / 34°0.29
41 °
Long Valley, Monday, 26 October
Rain. High 41°, low 34°.
Pressure30.42 inHg
Wind7.4 mph NE
Humidity94%
Visibility2.9 mi
Dew point37°
Tue, 2769° / 34°0
69 °
Long Valley, Tuesday, 27 October
Mostly clear. High 69°, low 34°.
Pressure29.85 inHg
Wind16.2 mph SW
Humidity47%
Visibility6.2 mi
Dew point44°
Wed, 2862° / 46°0
62 °
Long Valley, Wednesday, 28 October
Overcast. High 62°, low 46°.
Pressure29.88 inHg
Wind10.8 mph W
Humidity61%
Visibility6.2 mi
Dew point46°
Thu, 2969° / 42°0
69 °
Long Valley, Thursday, 29 October
Clear. High 69°, low 42°.
Pressure30.00 inHg
Wind10.8 mph S
Humidity46%
Visibility6.2 mi
Dew point43°
Fri, 3064° / 47°0.01
64 °
Long Valley, Friday, 30 October
Light rain. High 64°, low 47°.
Pressure29.94 inHg
Wind10.4 mph E
Humidity78%
Visibility—
Dew point51°
Sat, 3163° / 52°0
63 °
Long Valley, Saturday, 31 October
Overcast. High 63°, low 52°.
Pressure29.94 inHg
Wind9.7 mph SE
Humidity80%
Visibility—
Dew point52°
Sun, 0170° / 49°0
70 °
Long Valley, Sunday, 1 November
Mostly clear. High 70°, low 49°.
Pressure29.83 inHg
Wind19.4 mph S
Humidity47%
Visibility—
Dew point43°
Mon, 0257° / 46°0
57 °
Long Valley, Monday, 2 November
Partly cloudy. High 57°, low 46°.
Pressure29.94 inHg
Wind21.2 mph NW
Humidity43%
Visibility—
Dew point35°
Tue, 0366° / 44°0
66 °
Long Valley, Tuesday, 3 November
Partly cloudy. High 66°, low 44°.
Pressure30.03 inHg
Wind14 mph S
Humidity46%
Visibility—
Dew point37°
Wed, 0451° / 42°0
51 °
Long Valley, Wednesday, 4 November
Overcast. High 51°, low 42°.
Pressure30.15 inHg
Wind11.1 mph E
Humidity83%
Visibility—
Dew point45°
Thu, 0570° / 49°0
70 °
Long Valley, Thursday, 5 November
Overcast. High 70°, low 49°.
Pressure29.97 inHg
Wind15.5 mph S
Humidity45%
Visibility—
Dew point42°
Fri, 0674° / 56°0
74 °
Long Valley, Friday, 6 November
Clear. High 74°, low 56°.
Pressure29.50 inHg
Wind23.5 mph W
Humidity30%
Visibility—
Dew point38°
Sat, 0759° / 44°0
59 °
Long Valley, Saturday, 7 November
Partly cloudy. High 59°, low 44°.
Pressure29.88 inHg
Wind14.4 mph NW
Humidity64%
Visibility—
Dew point42°
Sun, 0865° / 39°0
65 °
Long Valley, Sunday, 8 November
Mostly clear. High 65°, low 39°.
Pressure30.21 inHg
Wind19 mph S
Humidity51%
Visibility—
Dew point36°
Mon, 0975° / 49°0
75 °
Long Valley, Monday, 9 November
Overcast. High 75°, low 49°.
Pressure29.83 inHg
Wind15.3 mph SW
Humidity31%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1047° / 28°0.04
47 °
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°0.03
45 °
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°0.04
48 °
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°0.04
48 °
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°0.02
47 °
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°0.02
47 °
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°0.02
49 °
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°0.02
46 °
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°0.04
47 °
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°0.03
44 °
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)
Fri, 2044° / 27°0.02
44 °
Long Valley, Friday, 20 November
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.02 in
Chance of precipitation12%
Record high66° (2012)
Record low-10° (1985)
Sat, 2144° / 27°0.02
44 °
Long Valley, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.02 in
Chance of precipitation10%
Record high72° (2012)
Record low-8° (1977)
Sun, 2245° / 27°0.02
45 °
Long Valley, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.02 in
Chance of precipitation13%
Record high67° (2006)
Record low-4° (1985)
Mon, 2342° / 25°0.02
42 °
Long Valley, Monday, 23 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.02 in
Chance of precipitation13%
Record high67° (2017)
Record low-9° (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.