Monthly outlook for Long Valley, SD: average high 60.1°, average low 43.5°. That is 3.6° above the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 6 November (70.3°), the coolest 27 October (33.4°).
60.1°/43.5°
Average high / low
+3.6°
Above normal
4 / 3
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
57.2°
55°
+1.2°
3 November – 12 November
65°
49.5°
+8.6°
13 November – 22 November
at normal
46.2°
—
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).
Sun, 2546° / 39°0.2
46 °
Long Valley, Sunday, 25 October
Rain. High 46°, low 39°.
Pressure30.42 inHg
Wind9.6 mph E
Humidity90%
Visibility3.9 mi
Dew point41°
Mon, 2640° / 36°1.02
40 °
Long Valley, Monday, 26 October
Rain. High 40°, low 36°.
Pressure30.21 inHg
Wind12.3 mph NE
Humidity96%
Visibility1.7 mi
Dew point40°
Tue, 2765° / 33°0
65 °
Long Valley, Tuesday, 27 October
Clear. High 65°, low 33°.
Pressure29.80 inHg
Wind15.2 mph SW
Humidity51%
Visibility6.2 mi
Dew point43°
Wed, 2861° / 38°0.06
61 °
Long Valley, Wednesday, 28 October
Light rain. High 61°, low 38°.
Pressure29.94 inHg
Wind10.2 mph SW
Humidity49%
Visibility—
Dew point39°
Thu, 2967° / 40°0
67 °
Long Valley, Thursday, 29 October
Clear. High 67°, low 40°.
Pressure30.03 inHg
Wind18.7 mph S
Humidity45%
Visibility—
Dew point38°
Fri, 3058° / 51°0.02
58 °
Long Valley, Friday, 30 October
Light rain. High 58°, low 51°.
Pressure29.97 inHg
Wind17.4 mph S
Humidity79%
Visibility—
Dew point48°
Sat, 3166° / 52°0
66 °
Long Valley, Saturday, 31 October
Overcast. High 66°, low 52°.
Pressure29.74 inHg
Wind13.1 mph S
Humidity50%
Visibility—
Dew point44°
Sun, 0152° / 41°0.35
52 °
Long Valley, Sunday, 1 November
Rain. High 52°, low 41°.
Pressure30.03 inHg
Wind24.3 mph NW
Humidity82%
Visibility—
Dew point37°
Mon, 0259° / 36°0
59 °
Long Valley, Monday, 2 November
Clear. High 59°, low 36°.
Pressure30.45 inHg
Wind13.6 mph NW
Humidity26%
Visibility—
Dew point17°
Tue, 0357° / 42°0
57 °
Long Valley, Tuesday, 3 November
Overcast. High 57°, low 42°.
Pressure30.06 inHg
Wind13.6 mph E
Humidity32%
Visibility—
Dew point24°
Wed, 0468° / 50°0
68 °
Long Valley, Wednesday, 4 November
Partly cloudy. High 68°, low 50°.
Pressure29.71 inHg
Wind18.5 mph SW
Humidity39%
Visibility—
Dew point36°
Thu, 0567° / 49°0
67 °
Long Valley, Thursday, 5 November
Overcast. High 67°, low 49°.
Pressure29.77 inHg
Wind11.5 mph S
Humidity37%
Visibility—
Dew point34°
Fri, 0670° / 53°0
70 °
Long Valley, Friday, 6 November
Overcast. High 70°, low 53°.
Pressure29.62 inHg
Wind18.7 mph SW
Humidity35%
Visibility—
Dew point38°
Sat, 0761° / 49°0.01
61 °
Long Valley, Saturday, 7 November
Light rain. High 61°, low 49°.
Pressure30.00 inHg
Wind12.5 mph NW
Humidity46%
Visibility—
Dew point37°
Sun, 0866° / 46°0
66 °
Long Valley, Sunday, 8 November
Clear. High 66°, low 46°.
Pressure30.12 inHg
Wind21.6 mph S
Humidity24%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0946° / 31°0.06
46 °
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°0.04
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)
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.