Monthly outlook for Long Lake, SD: average high 58.5°, average low 38.9°. That is 5.8° above the climate normal for October. Precipitation is expected on 2 days (about 1.0 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 23 October (72.6°), the coolest 29 October (27.9°).
58.5°/38.9°
Average high / low
+5.8°
Above normal
2 / 3
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
54.7°
50°
+2.7°
1 November – 10 November
64.7°
43.3°
+11.9°
11 November – 20 November
at normal
37.7°
—
October records over 66 years
87.8°1 October 1992All-time high
7°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Ashley (15 mi).
Fri, 2373° / 53°0
73 °
Long Lake, Friday, 23 October
Overcast. High 73°, low 53°.
Pressure29.80 inHg
Wind18.9 mph SE
Humidity67%
Visibility6.2 mi
Dew point54°
Sat, 2462° / 40°0.02
62 °
Long Lake, Saturday, 24 October
Light rain. High 62°, low 40°.
Pressure30.27 inHg
Wind18.9 mph NW
Humidity53%
Visibility6.2 mi
Dew point32°
Sun, 2546° / 37°0.02
46 °
Long Lake, Sunday, 25 October
Light rain. High 46°, low 37°.
Pressure30.50 inHg
Wind6.3 mph E
Humidity57%
Visibility6.2 mi
Dew point28°
Mon, 2642° / 36°0.67
42 °
Long Lake, Monday, 26 October
Rain. High 42°, low 36°.
Pressure30.50 inHg
Wind16.4 mph NE
Humidity86%
Visibility3.0 mi
Dew point32°
Tue, 2743° / 37°0.28
43 °
Long Lake, Tuesday, 27 October
Light rain. High 43°, low 37°.
Pressure30.15 inHg
Wind18 mph E
Humidity94%
Visibility—
Dew point39°
Wed, 2854° / 35°0
54 °
Long Lake, Wednesday, 28 October
Overcast. High 54°, low 35°.
Pressure29.85 inHg
Wind21.9 mph NW
Humidity70%
Visibility—
Dew point38°
Thu, 2947° / 28°0
47 °
Long Lake, Thursday, 29 October
Clear. High 47°, low 28°.
Pressure30.33 inHg
Wind16.5 mph NW
Humidity37%
Visibility—
Dew point17°
Fri, 3054° / 30°0
54 °
Long Lake, Friday, 30 October
Mostly clear. High 54°, low 30°.
Pressure29.94 inHg
Wind16.1 mph S
Humidity38%
Visibility—
Dew point22°
Sat, 3159° / 36°0
59 °
Long Lake, Saturday, 31 October
Clear. High 59°, low 36°.
Pressure29.71 inHg
Wind9.5 mph SE
Humidity57%
Visibility—
Dew point37°
Sun, 0159° / 39°0
59 °
Long Lake, Sunday, 1 November
Mostly clear. High 59°, low 39°.
Pressure30.00 inHg
Wind11.3 mph NW
Humidity27%
Visibility—
Dew point21°
Mon, 0263° / 39°0
63 °
Long Lake, Monday, 2 November
Overcast. High 63°, low 39°.
Pressure30.06 inHg
Wind12.7 mph S
Humidity44%
Visibility—
Dew point32°
Tue, 0360° / 39°0
60 °
Long Lake, Tuesday, 3 November
Mostly clear. High 60°, low 39°.
Pressure30.27 inHg
Wind11.9 mph NW
Humidity28%
Visibility—
Dew point22°
Wed, 0465° / 40°0
65 °
Long Lake, Wednesday, 4 November
Clear. High 65°, low 40°.
Pressure29.94 inHg
Wind17.9 mph S
Humidity37%
Visibility—
Dew point30°
Thu, 0569° / 44°0
69 °
Long Lake, Thursday, 5 November
Partly cloudy. High 69°, low 44°.
Pressure29.80 inHg
Wind9.7 mph SE
Humidity53%
Visibility—
Dew point42°
Fri, 0671° / 49°0
71 °
Long Lake, Friday, 6 November
Clear. High 71°, low 49°.
Pressure29.88 inHg
Wind9.3 mph SE
Humidity21%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0744° / 29°0.04
44 °
Long Lake, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.04 in
Chance of precipitation13%
Record high64° (1999)
Record low-7° (1991)
Sun, 0843° / 29°0.05
43 °
Long Lake, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.05 in
Chance of precipitation25%
Record high67° (1978)
Record low6° (2003)
Mon, 0940° / 27°0.04
40 °
Long Lake, Monday, 9 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.04 in
Chance of precipitation17%
Record high62° (2016)
Record low8° (1986)
Tue, 1038° / 24°0.07
38 °
Long Lake, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.07 in
Chance of precipitation23%
Record high59° (1989)
Record low-1° (1986)
Wed, 1137° / 24°0.02
37 °
Long Lake, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.02 in
Chance of precipitation13%
Record high63° (2005)
Record low-1° (1986)
Thu, 1238° / 24°0.03
38 °
Long Lake, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.03 in
Chance of precipitation13%
Record high62° (1999)
Record low-4° (1986)
Fri, 1340° / 26°0.02
40 °
Long Lake, Friday, 13 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.02 in
Chance of precipitation18%
Record high62° (2016)
Record low-5° (1986)
Sat, 1439° / 26°0.02
39 °
Long Lake, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.02 in
Chance of precipitation15%
Record high61° (2025)
Record low0° (2014)
Sun, 1538° / 26°0.01
38 °
Long Lake, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.01 in
Chance of precipitation13%
Record high60° (2001)
Record low4° (2014)
Mon, 1639° / 25°0.02
39 °
Long Lake, Monday, 16 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.02 in
Chance of precipitation10%
Record high62° (2001)
Record low-1° (2014)
Tue, 1737° / 25°0.02
37 °
Long Lake, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.02 in
Chance of precipitation17%
Record high62° (2001)
Record low6° (2014)
Wed, 1837° / 23°0.04
37 °
Long Lake, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high37°
Average low23°
Average precipitation0.04 in
Chance of precipitation23%
Record high53° (2020)
Record low2° (2022)
Thu, 1936° / 24°0.05
36 °
Long Lake, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.05 in
Chance of precipitation18%
Record high58° (1989)
Record low5° (1978)
Fri, 2035° / 22°0.03
35 °
Long Lake, Friday, 20 November
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.03 in
Chance of precipitation12%
Record high53° (1962)
Record low-2° (1978)
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 Lake, 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 Lake, 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.