Monthly outlook for Olsonville, SD: average high 58.6°, average low 42.9°. That is 0.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 22 October (79.3°), the coolest 27 October (32.3°).
58.6°/42.9°
Average high / low
+0.7°
Above normal
3 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
63.6°
59.1°
+2.5°
26 October – 4 November
50.1°
53.1°
-1.6°
5 November – 14 November
at normal
48.1°
—
October records over 66 years
91.6°4 October 1963All-time high
3.2°26 October 1997All-time low
Climate normals and records are computed from the nearest reference point — Sicangu Village (8 mi).
Sat, 1771° / 41°0
71 °
Olsonville, Saturday, 17 October
Clear. High 71°, low 41°.
Pressure30.18 inHg
Wind17 mph SW
Humidity35%
Visibility6.2 mi
Dew point31°
Sun, 1863° / 48°0
63 °
Olsonville, Sunday, 18 October
Clear. High 63°, low 48°.
Pressure30.03 inHg
Wind8.8 mph NW
Humidity51%
Visibility6.2 mi
Dew point41°
Mon, 1963° / 45°0
63 °
Olsonville, Monday, 19 October
Clear. High 63°, low 45°.
Pressure30.06 inHg
Wind4.4 mph NW
Humidity63%
Visibility6.2 mi
Dew point43°
Tue, 2069° / 46°0
69 °
Olsonville, Tuesday, 20 October
Clear. High 69°, low 46°.
Pressure29.94 inHg
Wind12.1 mph S
Humidity60%
Visibility—
Dew point48°
Wed, 2177° / 52°0
77 °
Olsonville, Wednesday, 21 October
Clear. High 77°, low 52°.
Pressure29.94 inHg
Wind10.6 mph S
Humidity47%
Visibility—
Dew point49°
Thu, 2279° / 59°0.02
79 °
Olsonville, Thursday, 22 October
Light rain. High 79°, low 59°.
Pressure29.85 inHg
Wind21.2 mph S
Humidity47%
Visibility—
Dew point51°
Fri, 2365° / 55°0.25
65 °
Olsonville, Friday, 23 October
Light rain. High 65°, low 55°.
Pressure29.62 inHg
Wind25 mph S
Humidity86%
Visibility—
Dew point53°
Sat, 2449° / 40°0.02
49 °
Olsonville, Saturday, 24 October
Light rain. High 49°, low 40°.
Pressure30.18 inHg
Wind29.4 mph NW
Humidity41%
Visibility—
Dew point25°
Sun, 2550° / 35°0
50 °
Olsonville, Sunday, 25 October
Partly cloudy. High 50°, low 35°.
Pressure30.45 inHg
Wind11.9 mph W
Humidity31%
Visibility—
Dew point17°
Mon, 2644° / 34°0.1
44 °
Olsonville, Monday, 26 October
Snow. High 44°, low 34°.
Pressure30.12 inHg
Wind9.7 mph NE
Humidity55%
Visibility—
Dew point26°
Tue, 2737° / 32°0.2
37 °
Olsonville, Tuesday, 27 October
Snow. High 37°, low 32°.
Pressure30.06 inHg
Wind9.4 mph E
Humidity81%
Visibility—
Dew point31°
Wed, 2849° / 32°0
49 °
Olsonville, Wednesday, 28 October
Overcast. High 49°, low 32°.
Pressure29.94 inHg
Wind7.8 mph S
Humidity64%
Visibility—
Dew point30°
Thu, 2955° / 40°0
55 °
Olsonville, Thursday, 29 October
Overcast. High 55°, low 40°.
Pressure30.03 inHg
Wind14.8 mph NW
Humidity34%
Visibility—
Dew point24°
Fri, 3060° / 43°0
60 °
Olsonville, Friday, 30 October
Overcast. High 60°, low 43°.
Pressure30.00 inHg
Wind8 mph E
Humidity38%
Visibility—
Dew point29°
Sat, 3155° / 49°0
55 °
Olsonville, Saturday, 31 October
Partly cloudy. High 55°, low 49°.
Pressure30.00 inHg
Wind20.9 mph NW
Humidity25%
Visibility—
Dew point19°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0151° / 34°0.04
51 °
Olsonville, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low34°
Average precipitation0.04 in
Chance of precipitation17%
Record high75° (1990)
Record low2° (2002)
Mon, 0251° / 33°0.05
51 °
Olsonville, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.05 in
Chance of precipitation22%
Record high77° (2005)
Record low4° (1991)
Tue, 0350° / 33°0.05
50 °
Olsonville, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.05 in
Chance of precipitation18%
Record high73° (2020)
Record low0° (1995)
Wed, 0451° / 32°0.02
51 °
Olsonville, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.02 in
Chance of precipitation12%
Record high76° (2025)
Record low7° (1995)
Thu, 0551° / 33°0.03
51 °
Olsonville, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.03 in
Chance of precipitation10%
Record high77° (2001)
Record low10° (2003)
Fri, 0651° / 32°0.04
51 °
Olsonville, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.04 in
Chance of precipitation12%
Record high77° (2020)
Record low4° (2003)
Sat, 0751° / 32°0.04
51 °
Olsonville, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.04 in
Chance of precipitation12%
Record high79° (1999)
Record low-3° (1991)
Sun, 0850° / 33°0.05
50 °
Olsonville, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.05 in
Chance of precipitation15%
Record high79° (1999)
Record low11° (1991)
Mon, 0946° / 31°0.07
46 °
Olsonville, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.07 in
Chance of precipitation20%
Record high71° (2016)
Record low10° (2018)
Tue, 1047° / 27°0.03
47 °
Olsonville, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low27°
Average precipitation0.03 in
Chance of precipitation23%
Record high69° (1989)
Record low-9° (1986)
Wed, 1144° / 28°0.06
44 °
Olsonville, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.06 in
Chance of precipitation23%
Record high75° (2005)
Record low-11° (1986)
Thu, 1246° / 28°0.04
46 °
Olsonville, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.04 in
Chance of precipitation17%
Record high73° (1999)
Record low-8° (1986)
Fri, 1348° / 29°0.03
48 °
Olsonville, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low29°
Average precipitation0.03 in
Chance of precipitation18%
Record high73° (2025)
Record low-16° (1986)
Sat, 1447° / 30°0.01
47 °
Olsonville, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.01 in
Chance of precipitation5%
Record high78° (2025)
Record low-2° (1972)
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 Olsonville, 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 Olsonville, 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.