Monthly outlook for Long Valley, SD: average high 54.8°, average low 41.5°. That is 2.1° 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 29 October (66.9°), the coolest 11 November (29.9°).
54.8°/41.5°
Average high / low
+2.1°
Above normal
2 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
58°
52.8°
+2.9°
7 November – 16 November
49.3°
47.9°
+0.8°
17 November – 26 November
at normal
43.6°
—
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).
Thu, 2967° / 41°0
67 °
Long Valley, Thursday, 29 October
Light rain. High 67°, low 41°.
Pressure30.06 inHg
Wind16.2 mph S
Humidity39%
Visibility6.2 mi
Dew point37°
Fri, 3062° / 49°0.01
62 °
Long Valley, Friday, 30 October
Light rain. High 62°, low 49°.
Pressure30.12 inHg
Wind9.7 mph SE
Humidity72%
Visibility6.2 mi
Dew point51°
Sat, 3165° / 54°0
65 °
Long Valley, Saturday, 31 October
Overcast. High 65°, low 54°.
Pressure30.00 inHg
Wind16.5 mph S
Humidity67%
Visibility6.2 mi
Dew point52°
Sun, 0166° / 51°0
66 °
Long Valley, Sunday, 1 November
Overcast. High 66°, low 51°.
Pressure29.97 inHg
Wind15.8 mph S
Humidity67%
Visibility6.2 mi
Dew point52°
Mon, 0257° / 46°0.21
57 °
Long Valley, Monday, 2 November
Light rain. High 57°, low 46°.
Pressure29.71 inHg
Wind24.6 mph NW
Humidity83%
Visibility—
Dew point52°
Tue, 0351° / 41°0.35
51 °
Long Valley, Tuesday, 3 November
Rain. High 51°, low 41°.
Pressure30.15 inHg
Wind18.4 mph N
Humidity88%
Visibility—
Dew point42°
Wed, 0457° / 46°0
57 °
Long Valley, Wednesday, 4 November
Overcast. High 57°, low 46°.
Pressure29.97 inHg
Wind15.3 mph NW
Humidity70%
Visibility—
Dew point44°
Thu, 0549° / 36°0
49 °
Long Valley, Thursday, 5 November
Clear. High 49°, low 36°.
Pressure29.97 inHg
Wind13.4 mph N
Humidity38%
Visibility—
Dew point22°
Fri, 0647° / 34°0
47 °
Long Valley, Friday, 6 November
Clear. High 47°, low 34°.
Pressure29.94 inHg
Wind8.5 mph E
Humidity51%
Visibility—
Dew point26°
Sat, 0752° / 34°0
52 °
Long Valley, Saturday, 7 November
Overcast. High 52°, low 34°.
Pressure29.91 inHg
Wind12.1 mph S
Humidity68%
Visibility—
Dew point37°
Sun, 0849° / 42°0
49 °
Long Valley, Sunday, 8 November
Overcast. High 49°, low 42°.
Pressure30.06 inHg
Wind7.1 mph SE
Humidity74%
Visibility—
Dew point39°
Mon, 0951° / 41°0
51 °
Long Valley, Monday, 9 November
Clear. High 51°, low 41°.
Pressure30.12 inHg
Wind18 mph NW
Humidity48%
Visibility—
Dew point30°
Tue, 1048° / 35°0
48 °
Long Valley, Tuesday, 10 November
Overcast. High 48°, low 35°.
Pressure30.09 inHg
Wind15.8 mph NW
Humidity51%
Visibility—
Dew point28°
Wed, 1145° / 30°0
45 °
Long Valley, Wednesday, 11 November
Overcast. High 45°, low 30°.
Pressure30.21 inHg
Wind6 mph E
Humidity55%
Visibility—
Dew point25°
Thu, 1250° / 41°0.01
50 °
Long Valley, Thursday, 12 November
Light rain. High 50°, low 41°.
Pressure30.09 inHg
Wind7.9 mph NW
Humidity61%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 2444° / 26°0.03
44 °
Long Valley, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.03 in
Chance of precipitation12%
Record high69° (1990)
Record low-9° (1996)
Wed, 2542° / 25°0.02
42 °
Long Valley, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.02 in
Chance of precipitation12%
Record high69° (1960)
Record low-2° (1993)
Thu, 2638° / 23°0.06
38 °
Long Valley, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high38°
Average low23°
Average precipitation0.06 in
Chance of precipitation32%
Record high63° (1962)
Record low-6° (1975)
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.