Monthly outlook for Preston, SD: average high 54.5°, average low 36.2°. That is 0.8° below the climate normal for October. Precipitation is expected on 10 days (about 1.3 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 10 October (79.4°), the coolest 17 October (10°).
54.5°/36.2°
Average high / low
−0.8°
Below normal
10 / 4
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 October – 19 October
54.5°
56.5°
-1.1°
20 October – 29 October
54.5°
53.8°
+0.4°
30 October – 8 November
at normal
47.9°
—
October records over 66 years
86.9°4 October 1963All-time high
-5.4°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Mountain Plains (8 mi).
Sun, 1155° / 45°0.06
55 °
Preston, Sunday, 11 October
Light rain. High 55°, low 45°.
Pressure29.80 inHg
Wind5.2 mph NE
Humidity74%
Visibility6.2 mi
Dew point45°
Mon, 1255° / 38°0.06
55 °
Preston, Monday, 12 October
Light rain. High 55°, low 38°.
Pressure29.77 inHg
Wind4.9 mph NW
Humidity81%
Visibility6.2 mi
Dew point49°
Tue, 1346° / 37°0.13
46 °
Preston, Tuesday, 13 October
Light rain. High 46°, low 37°.
Pressure30.03 inHg
Wind3.7 mph N
Humidity93%
Visibility6.2 mi
Dew point42°
Wed, 1456° / 42°0
56 °
Preston, Wednesday, 14 October
Overcast. High 56°, low 42°.
Pressure30.21 inHg
Wind6.1 mph S
Humidity63%
Visibility—
Dew point40°
Thu, 1556° / 40°0.04
56 °
Preston, Thursday, 15 October
Light rain. High 56°, low 40°.
Pressure30.27 inHg
Wind11.6 mph W
Humidity65%
Visibility—
Dew point43°
Fri, 1634° / 22°0.34
34 °
Preston, Friday, 16 October
Snow. High 34°, low 22°.
Pressure30.53 inHg
Wind28.1 mph NW
Humidity86%
Visibility—
Dew point20°
Sat, 1743° / 10°0.04
43 °
Preston, Saturday, 17 October
Light snow. High 43°, low 10°.
Pressure30.47 inHg
Wind13.6 mph NW
Humidity51%
Visibility—
Dew point18°
Sun, 1859° / 35°0
59 °
Preston, Sunday, 18 October
Partly cloudy. High 59°, low 35°.
Pressure29.91 inHg
Wind11.2 mph S
Humidity47%
Visibility—
Dew point36°
Mon, 1961° / 39°0
61 °
Preston, Monday, 19 October
Mostly clear. High 61°, low 39°.
Pressure29.94 inHg
Wind6.9 mph S
Humidity27%
Visibility—
Dew point24°
Tue, 2064° / 42°0
64 °
Preston, Tuesday, 20 October
Overcast. High 64°, low 42°.
Pressure29.80 inHg
Wind12.4 mph SW
Humidity24%
Visibility—
Dew point24°
Wed, 2165° / 42°0.23
65 °
Preston, Wednesday, 21 October
Rain. High 65°, low 42°.
Pressure29.68 inHg
Wind13.9 mph S
Humidity29%
Visibility—
Dew point30°
Thu, 2252° / 37°0.08
52 °
Preston, Thursday, 22 October
Snow. High 52°, low 37°.
Pressure30.03 inHg
Wind14 mph SW
Humidity49%
Visibility—
Dew point28°
Fri, 2355° / 39°0.16
55 °
Preston, Friday, 23 October
Snow. High 55°, low 39°.
Pressure29.65 inHg
Wind18.8 mph SW
Humidity38%
Visibility—
Dew point28°
Sat, 2436° / 28°0.12
36 °
Preston, Saturday, 24 October
Light snow. High 36°, low 28°.
Pressure30.12 inHg
Wind16 mph NW
Humidity80%
Visibility—
Dew point28°
Sun, 2555° / 30°0
55 °
Preston, Sunday, 25 October
Overcast. High 55°, low 30°.
Pressure29.35 inHg
Wind18.7 mph SW
Humidity48%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 2654° / 35°0.07
54 °
Preston, Monday, 26 October
Climate normal for this date — 60-year average.
Average high54°
Average low35°
Average precipitation0.07 in
Chance of precipitation22%
Record high72° (1960)
Record low-3° (2020)
Tue, 2752° / 33°0.05
52 °
Preston, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low33°
Average precipitation0.05 in
Chance of precipitation27%
Record high75° (2016)
Record low14° (2023)
Wed, 2852° / 34°0.06
52 °
Preston, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high74° (2016)
Record low7° (1991)
Thu, 2950° / 33°0.11
50 °
Preston, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low33°
Average precipitation0.11 in
Chance of precipitation37%
Record high76° (1968)
Record low-2° (1991)
Fri, 3048° / 31°0.04
48 °
Preston, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation27%
Record high73° (1968)
Record low-5° (1991)
Sat, 3148° / 31°0.05
48 °
Preston, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.05 in
Chance of precipitation23%
Record high71° (1999)
Record low1° (1991)
Sun, 0148° / 31°0.08
48 °
Preston, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.08 in
Chance of precipitation25%
Record high70° (1965)
Record low0° (2002)
Mon, 0247° / 31°0.05
47 °
Preston, Monday, 2 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.05 in
Chance of precipitation25%
Record high73° (2008)
Record low-8° (1991)
Tue, 0347° / 31°0.04
47 °
Preston, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.04 in
Chance of precipitation23%
Record high71° (2020)
Record low-1° (1991)
Wed, 0450° / 31°0.02
50 °
Preston, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low31°
Average precipitation0.02 in
Chance of precipitation17%
Record high71° (1978)
Record low8° (1967)
Thu, 0548° / 31°0.04
48 °
Preston, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation25%
Record high72° (2020)
Record low3° (2003)
Fri, 0648° / 30°0.06
48 °
Preston, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.06 in
Chance of precipitation18%
Record high70° (2020)
Record low7° (1991)
Sat, 0748° / 30°0.04
48 °
Preston, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low30°
Average precipitation0.04 in
Chance of precipitation17%
Record high73° (1999)
Record low5° (1991)
Sun, 0846° / 30°0.06
46 °
Preston, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.06 in
Chance of precipitation22%
Record high74° (1999)
Record low7° (2000)
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 Preston, 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 Preston, 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.