Monthly outlook for Vivian, SD: average high 62.2°, average low 45.2°. That is 2.1° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 21 October (76.2°), the coolest 25 October (35.7°).
62.2°/45.2°
Average high / low
+2.1°
Above normal
4 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
63.9°
59.7°
+2.3°
25 October – 3 November
59.4°
54.4°
+2.8°
4 November – 13 November
at normal
48.8°
—
October records over 66 years
93°5 October 1963All-time high
6.3°26 October 2020All-time low
Fri, 1651° / 39°0.02
51 °
Vivian, Friday, 16 October
Light rain. High 51°, low 39°.
Pressure30.74 inHg
Wind11.6 mph NW
Humidity58%
Visibility6.2 mi
Dew point30°
Sat, 1771° / 41°0
71 °
Vivian, Saturday, 17 October
Clear. High 71°, low 41°.
Pressure30.18 inHg
Wind12.4 mph S
Humidity36%
Visibility6.2 mi
Dew point32°
Sun, 1867° / 45°0
67 °
Vivian, Sunday, 18 October
Clear. High 67°, low 45°.
Pressure30.09 inHg
Wind8.3 mph N
Humidity53%
Visibility6.2 mi
Dew point42°
Mon, 1963° / 42°0
63 °
Vivian, Monday, 19 October
Clear. High 63°, low 42°.
Pressure30.15 inHg
Wind8.5 mph SE
Humidity62%
Visibility—
Dew point43°
Tue, 2072° / 46°0.02
72 °
Vivian, Tuesday, 20 October
Light rain. High 72°, low 46°.
Pressure30.00 inHg
Wind14.5 mph SE
Humidity53%
Visibility—
Dew point46°
Wed, 2176° / 57°0
76 °
Vivian, Wednesday, 21 October
Clear. High 76°, low 57°.
Pressure29.80 inHg
Wind14.8 mph S
Humidity53%
Visibility—
Dew point53°
Thu, 2275° / 59°0.05
75 °
Vivian, Thursday, 22 October
Light rain. High 75°, low 59°.
Pressure29.56 inHg
Wind22.3 mph S
Humidity54%
Visibility—
Dew point56°
Fri, 2359° / 47°0.39
59 °
Vivian, Friday, 23 October
Rain. High 59°, low 47°.
Pressure29.83 inHg
Wind17.6 mph W
Humidity43%
Visibility—
Dew point33°
Sat, 2450° / 41°0
50 °
Vivian, Saturday, 24 October
Overcast. High 50°, low 41°.
Pressure30.36 inHg
Wind14.7 mph NW
Humidity42%
Visibility—
Dew point26°
Sun, 2557° / 36°0
57 °
Vivian, Sunday, 25 October
Clear. High 57°, low 36°.
Pressure30.27 inHg
Wind15.8 mph W
Humidity29%
Visibility—
Dew point19°
Mon, 2654° / 44°0.05
54 °
Vivian, Monday, 26 October
Light rain. High 54°, low 44°.
Pressure30.09 inHg
Wind15.1 mph NW
Humidity51%
Visibility—
Dew point35°
Tue, 2756° / 38°0
56 °
Vivian, Tuesday, 27 October
Clear. High 56°, low 38°.
Pressure30.09 inHg
Wind8.4 mph S
Humidity43%
Visibility—
Dew point29°
Wed, 2860° / 47°0
60 °
Vivian, Wednesday, 28 October
Overcast. High 60°, low 47°.
Pressure29.71 inHg
Wind19.8 mph NW
Humidity62%
Visibility—
Dew point44°
Thu, 2959° / 42°0
59 °
Vivian, Thursday, 29 October
Clear. High 59°, low 42°.
Pressure30.09 inHg
Wind16.7 mph SE
Humidity36%
Visibility—
Dew point25°
Fri, 3071° / 55°0
71 °
Vivian, Friday, 30 October
Overcast. High 71°, low 55°.
Pressure29.44 inHg
Wind20.8 mph S
Humidity26%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3153° / 36°0.04
53 °
Vivian, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.04 in
Chance of precipitation17%
Record high81° (1990)
Record low12° (1991)
Sun, 0151° / 36°0.03
51 °
Vivian, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.03 in
Chance of precipitation22%
Record high76° (1990)
Record low12° (2002)
Mon, 0252° / 35°0.02
52 °
Vivian, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.02 in
Chance of precipitation17%
Record high74° (1964)
Record low7° (1991)
Tue, 0351° / 35°0.04
51 °
Vivian, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation22%
Record high72° (2020)
Record low5° (1991)
Wed, 0452° / 33°0.02
52 °
Vivian, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.02 in
Chance of precipitation12%
Record high76° (1978)
Record low4° (1995)
Thu, 0552° / 34°0.04
52 °
Vivian, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.04 in
Chance of precipitation18%
Record high78° (2001)
Record low14° (2003)
Fri, 0651° / 33°0.04
51 °
Vivian, Friday, 6 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.04 in
Chance of precipitation15%
Record high78° (2020)
Record low2° (2003)
Sat, 0751° / 32°0.04
51 °
Vivian, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.04 in
Chance of precipitation12%
Record high74° (1999)
Record low-1° (1991)
Sun, 0851° / 33°0.07
51 °
Vivian, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low33°
Average precipitation0.07 in
Chance of precipitation17%
Record high81° (1999)
Record low10° (1991)
Mon, 0947° / 32°0.04
47 °
Vivian, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.04 in
Chance of precipitation20%
Record high71° (2016)
Record low7° (2000)
Tue, 1046° / 28°0.05
46 °
Vivian, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.05 in
Chance of precipitation25%
Record high70° (1989)
Record low-4° (1986)
Wed, 1144° / 29°0.02
44 °
Vivian, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.02 in
Chance of precipitation18%
Record high71° (2005)
Record low-7° (1986)
Thu, 1246° / 28°0.05
46 °
Vivian, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.05 in
Chance of precipitation17%
Record high72° (1999)
Record low-5° (1986)
Fri, 1348° / 30°0.03
48 °
Vivian, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.03 in
Chance of precipitation18%
Record high73° (1990)
Record low-14° (1986)
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 Vivian, 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 Vivian, 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.