Monthly outlook for Westport, SD: average high 50.1°, average low 36.8°. That is 1.5° above the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 1 November (62.4°), the coolest 6 November (24.7°).
50.1°/36.8°
Average high / low
+1.5°
Above normal
4 / 3
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
53.1°
49.5°
+2°
5 November – 14 November
45.1°
42.6°
+1.4°
15 November – 24 November
at normal
37.5°
—
October records over 66 years
87.1°3 October 2025All-time high
7.3°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Frederick (13 mi).
Tue, 2752° / 34°0.03
52 °
Westport, Tuesday, 27 October
Light rain. High 52°, low 34°.
Pressure30.03 inHg
Wind7.7 mph S
Humidity82%
Visibility6.2 mi
Dew point39°
Wed, 2857° / 38°0
57 °
Westport, Wednesday, 28 October
Overcast. High 57°, low 38°.
Pressure29.88 inHg
Wind6.8 mph SW
Humidity87%
Visibility6.2 mi
Dew point48°
Thu, 2954° / 34°0
54 °
Westport, Thursday, 29 October
Partly cloudy. High 54°, low 34°.
Pressure30.24 inHg
Wind4.5 mph E
Humidity70%
Visibility6.2 mi
Dew point38°
Fri, 3054° / 37°0
54 °
Westport, Friday, 30 October
Clear. High 54°, low 37°.
Pressure30.24 inHg
Wind10.2 mph NE
Humidity71%
Visibility6.2 mi
Dew point39°
Sat, 3158° / 41°0
58 °
Westport, Saturday, 31 October
Overcast. High 58°, low 41°.
Pressure30.06 inHg
Wind8.2 mph E
Humidity76%
Visibility—
Dew point46°
Sun, 0162° / 49°0
62 °
Westport, Sunday, 1 November
Overcast. High 62°, low 49°.
Pressure29.91 inHg
Wind9.1 mph SE
Humidity71%
Visibility—
Dew point49°
Mon, 0254° / 50°0
54 °
Westport, Monday, 2 November
Overcast. High 54°, low 50°.
Pressure29.91 inHg
Wind20.3 mph NE
Humidity80%
Visibility—
Dew point47°
Tue, 0348° / 42°0.3
48 °
Westport, Tuesday, 3 November
Rain. High 48°, low 42°.
Pressure30.06 inHg
Wind20.8 mph NE
Humidity82%
Visibility—
Dew point38°
Wed, 0449° / 39°0.09
49 °
Westport, Wednesday, 4 November
Light rain. High 49°, low 39°.
Pressure29.94 inHg
Wind24.4 mph N
Humidity67%
Visibility—
Dew point37°
Thu, 0539° / 31°0
39 °
Westport, Thursday, 5 November
Overcast. High 39°, low 31°.
Pressure30.09 inHg
Wind20.3 mph N
Humidity46%
Visibility—
Dew point18°
Fri, 0639° / 25°0
39 °
Westport, Friday, 6 November
Clear. High 39°, low 25°.
Pressure30.27 inHg
Wind14.1 mph N
Humidity37%
Visibility—
Dew point11°
Sat, 0743° / 26°0
43 °
Westport, Saturday, 7 November
Partly cloudy. High 43°, low 26°.
Pressure30.06 inHg
Wind12.2 mph SE
Humidity30%
Visibility—
Dew point10°
Sun, 0850° / 38°0
50 °
Westport, Sunday, 8 November
Light rain. High 50°, low 38°.
Pressure29.59 inHg
Wind12.3 mph SE
Humidity64%
Visibility—
Dew point35°
Mon, 0957° / 40°0
57 °
Westport, Monday, 9 November
Mostly clear. High 57°, low 40°.
Pressure29.68 inHg
Wind14.1 mph NW
Humidity54%
Visibility—
Dew point36°
Tue, 1041° / 31°0.09
41 °
Westport, Tuesday, 10 November
Snow. High 41°, low 31°.
Pressure29.97 inHg
Wind16.4 mph N
Humidity89%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1139° / 25°0.02
39 °
Westport, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high39°
Average low25°
Average precipitation0.02 in
Chance of precipitation10%
Record high62° (2005)
Record low1° (1986)
Thu, 1240° / 25°0.04
40 °
Westport, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.04 in
Chance of precipitation17%
Record high63° (1999)
Record low1° (1986)
Fri, 1342° / 26°0.03
42 °
Westport, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.03 in
Chance of precipitation17%
Record high66° (1999)
Record low-3° (1986)
Sat, 1441° / 26°0.02
41 °
Westport, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.02 in
Chance of precipitation10%
Record high63° (2025)
Record low-2° (2014)
Sun, 1540° / 26°0.02
40 °
Westport, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.02 in
Chance of precipitation13%
Record high61° (2001)
Record low-1° (2014)
Mon, 1641° / 26°0.03
41 °
Westport, Monday, 16 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.03 in
Chance of precipitation10%
Record high63° (2001)
Record low0° (2014)
Tue, 1739° / 26°0.02
39 °
Westport, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high39°
Average low26°
Average precipitation0.02 in
Chance of precipitation13%
Record high64° (2001)
Record low5° (1997)
Wed, 1838° / 24°0.05
38 °
Westport, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.05 in
Chance of precipitation25%
Record high55° (2001)
Record low5° (1996)
Thu, 1938° / 25°0.05
38 °
Westport, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.05 in
Chance of precipitation25%
Record high60° (1989)
Record low4° (1978)
Fri, 2036° / 23°0.03
36 °
Westport, Friday, 20 November
Climate normal for this date — 60-year average.
Average high36°
Average low23°
Average precipitation0.03 in
Chance of precipitation17%
Record high58° (1962)
Record low-1° (1978)
Sat, 2137° / 22°0.02
37 °
Westport, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.02 in
Chance of precipitation12%
Record high58° (1960)
Record low-7° (1978)
Sun, 2236° / 22°0.02
36 °
Westport, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.02 in
Chance of precipitation22%
Record high57° (2006)
Record low-3° (1996)
Mon, 2334° / 21°0.02
34 °
Westport, Monday, 23 November
Climate normal for this date — 60-year average.
Average high34°
Average low21°
Average precipitation0.02 in
Chance of precipitation23%
Record high52° (2017)
Record low-6° (1985)
Tue, 2436° / 21°0.02
36 °
Westport, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high36°
Average low21°
Average precipitation0.02 in
Chance of precipitation13%
Record high59° (1990)
Record low-14° (1985)
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 Westport, 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 Westport, 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.