Monthly outlook for Flandreau, SD: average high 60.1°, average low 43.1°. That is 2.2° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 10 October (83.3°), the coolest 17 October (24.4°).
60.1°/43.1°
Average high / low
+2.2°
Above normal
1 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
61.9°
57°
+2.7°
20 October – 29 October
57.1°
53.4°
+2.1°
30 October – 8 November
at normal
47.5°
—
October records over 66 years
89.4°3 October 2025All-time high
7°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Ward (10 mi).
Sun, 1182° / 62°0
82 °
Flandreau, Sunday, 11 October
Mostly clear. High 82°, low 62°.
Pressure29.71 inHg
Wind11.8 mph S
Humidity44%
Visibility6.2 mi
Dew point53°
Mon, 1273° / 54°0
73 °
Flandreau, Monday, 12 October
Clear. High 73°, low 54°.
Pressure29.68 inHg
Wind7.4 mph NE
Humidity65%
Visibility6.2 mi
Dew point56°
Tue, 1358° / 49°0
58 °
Flandreau, Tuesday, 13 October
Overcast. High 58°, low 49°.
Pressure30.06 inHg
Wind8.8 mph NW
Humidity63%
Visibility6.2 mi
Dew point41°
Wed, 1458° / 46°0
58 °
Flandreau, Wednesday, 14 October
Overcast. High 58°, low 46°.
Pressure30.27 inHg
Wind8.1 mph N
Humidity55%
Visibility—
Dew point38°
Thu, 1561° / 46°0.09
61 °
Flandreau, Thursday, 15 October
Light rain. High 61°, low 46°.
Pressure30.30 inHg
Wind5.9 mph E
Humidity54%
Visibility—
Dew point42°
Fri, 1648° / 30°0
48 °
Flandreau, Friday, 16 October
Overcast. High 48°, low 30°.
Pressure30.21 inHg
Wind28.1 mph NW
Humidity59%
Visibility—
Dew point25°
Sat, 1741° / 24°0
41 °
Flandreau, Saturday, 17 October
Clear. High 41°, low 24°.
Pressure30.59 inHg
Wind20.9 mph NW
Humidity36%
Visibility—
Dew point11°
Sun, 1851° / 28°0
51 °
Flandreau, Sunday, 18 October
Overcast. High 51°, low 28°.
Pressure30.18 inHg
Wind23 mph S
Humidity34%
Visibility—
Dew point18°
Mon, 1963° / 38°0
63 °
Flandreau, Monday, 19 October
Mostly clear. High 63°, low 38°.
Pressure30.03 inHg
Wind14.5 mph S
Humidity46%
Visibility—
Dew point36°
Tue, 2061° / 50°0
61 °
Flandreau, Tuesday, 20 October
Overcast. High 61°, low 50°.
Pressure29.77 inHg
Wind21.9 mph S
Humidity45%
Visibility—
Dew point36°
Wed, 2152° / 44°0.01
52 °
Flandreau, Wednesday, 21 October
Light rain. High 52°, low 44°.
Pressure29.94 inHg
Wind20.6 mph NW
Humidity71%
Visibility—
Dew point39°
Thu, 2261° / 44°0
61 °
Flandreau, Thursday, 22 October
Clear. High 61°, low 44°.
Pressure30.06 inHg
Wind17.4 mph NW
Humidity33%
Visibility—
Dew point29°
Fri, 2358° / 37°0
58 °
Flandreau, Friday, 23 October
Clear. High 58°, low 37°.
Pressure30.18 inHg
Wind8.5 mph E
Humidity46%
Visibility—
Dew point31°
Sat, 2463° / 43°0
63 °
Flandreau, Saturday, 24 October
Overcast. High 63°, low 43°.
Pressure29.97 inHg
Wind15.3 mph SE
Humidity49%
Visibility—
Dew point38°
Sun, 2549° / 30°0
49 °
Flandreau, Sunday, 25 October
Overcast. High 49°, low 30°.
Pressure30.30 inHg
Wind21.6 mph N
Humidity79%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2653° / 37°0.03
53 °
Flandreau, Monday, 26 October
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.03 in
Chance of precipitation13%
Record high76° (1989)
Record low7° (2020)
Tue, 2752° / 36°0.1
52 °
Flandreau, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.1 in
Chance of precipitation33%
Record high72° (1999)
Record low9° (2020)
Wed, 2851° / 36°0.04
51 °
Flandreau, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.04 in
Chance of precipitation15%
Record high73° (2024)
Record low16° (2017)
Thu, 2951° / 35°0.06
51 °
Flandreau, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.06 in
Chance of precipitation28%
Record high71° (2004)
Record low19° (2020)
Fri, 3050° / 35°0.1
50 °
Flandreau, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.1 in
Chance of precipitation30%
Record high67° (1965)
Record low17° (1991)
Sat, 3149° / 33°0.09
49 °
Flandreau, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.09 in
Chance of precipitation20%
Record high70° (1990)
Record low17° (2019)
Sun, 0148° / 34°0.06
48 °
Flandreau, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (1990)
Record low17° (2002)
Mon, 0248° / 33°0.04
48 °
Flandreau, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.04 in
Chance of precipitation15%
Record high71° (2022)
Record low8° (1991)
Tue, 0347° / 33°0.04
47 °
Flandreau, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.04 in
Chance of precipitation18%
Record high70° (1978)
Record low4° (1991)
Wed, 0447° / 31°0.02
47 °
Flandreau, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.02 in
Chance of precipitation7%
Record high71° (2020)
Record low-10° (1991)
Thu, 0547° / 32°0.05
47 °
Flandreau, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.05 in
Chance of precipitation20%
Record high69° (2001)
Record low6° (1991)
Fri, 0647° / 32°0.04
47 °
Flandreau, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.04 in
Chance of precipitation18%
Record high72° (2020)
Record low-1° (1991)
Sat, 0746° / 30°0.02
46 °
Flandreau, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.02 in
Chance of precipitation12%
Record high69° (2020)
Record low-13° (1991)
Sun, 0846° / 30°0.06
46 °
Flandreau, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.06 in
Chance of precipitation18%
Record high72° (1999)
Record low1° (1991)
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 Flandreau, 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 Flandreau, 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.