As of 15:07 MDT

Weather in Summerville, SD

52°Current weather

Summerville, Thursday, 29 October, 15:07

Mostly clear. Feels like 50°. High 52°, low 30°.

Pressure30.12 inHg
Wind10 mph E
Humidity61%
Visibility6.2 mi
Dew point39°

Monthly outlook for Summerville, SD: average high 55.5°, average low 39.4°. That is 5.7° above the climate normal for October. Precipitation is expected on 1 day (about 0.5 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 1 November (61°), the coolest 30 October (28.9°).

55.5°/39.4°
Average high / low
+5.7°
Above normal
1 / 3
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
29 October – 7 November54.4°47.5°+3.8°
8 November – 17 November57.3°41.3°+8.9°
18 November – 27 Novemberat normal36.3°—

October records over 66 years

90.1°2 October 1997All-time high
-6.3°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Lemmon (11 mi).

Fri, 3052° / 29°0Overcast
52 °Overcast

Summerville, Friday, 30 October

Overcast. High 52°, low 29°.

Pressure30.18 inHg
Wind9.9 mph E
Humidity69%
Visibility6.2 mi
Dew point39°
Sat, 3158° / 43°0Overcast
58 °Overcast

Summerville, Saturday, 31 October

Overcast. High 58°, low 43°.

Pressure30.03 inHg
Wind11 mph SE
Humidity89%
Visibility6.2 mi
Dew point50°
Sun, 0161° / 45°0Light rain
61 °Light rain

Summerville, Sunday, 1 November

Light rain. High 61°, low 45°.

Pressure30.00 inHg
Wind5.5 mph SE
Humidity85%
Visibility6.2 mi
Dew point50°
Mon, 0255° / 46°0.45Rain
55 °Rain

Summerville, Monday, 2 November

Rain. High 55°, low 46°.

Pressure29.62 inHg
Wind8.5 mph NW
Humidity98%
Visibility4.7 mi
Dew point53°
Tue, 0348° / 38°0Overcast
48 °Overcast

Summerville, Tuesday, 3 November

Overcast. High 48°, low 38°.

Pressure30.12 inHg
Wind20.3 mph NW
Humidity73%
Visibility—
Dew point38°
Wed, 0455° / 36°0Partly cloudy
55 °Partly cloudy

Summerville, Wednesday, 4 November

Partly cloudy. High 55°, low 36°.

Pressure30.00 inHg
Wind11 mph NW
Humidity34%
Visibility—
Dew point21°
Thu, 0551° / 39°0Clear
51 °Clear

Summerville, Thursday, 5 November

Clear. High 51°, low 39°.

Pressure29.97 inHg
Wind11.1 mph SE
Humidity57%
Visibility—
Dew point33°
Fri, 0653° / 37°0Clear
53 °Clear

Summerville, Friday, 6 November

Clear. High 53°, low 37°.

Pressure29.80 inHg
Wind13.1 mph SE
Humidity62%
Visibility—
Dew point34°
Sat, 0757° / 42°0Clear
57 °Clear

Summerville, Saturday, 7 November

Clear. High 57°, low 42°.

Pressure29.97 inHg
Wind11.9 mph NW
Humidity45%
Visibility—
Dew point32°
Sun, 0859° / 39°0Clear
59 °Clear

Summerville, Sunday, 8 November

Clear. High 59°, low 39°.

Pressure29.91 inHg
Wind9.2 mph W
Humidity40%
Visibility—
Dew point28°
Mon, 0961° / 43°0Overcast
61 °Overcast

Summerville, Monday, 9 November

Overcast. High 61°, low 43°.

Pressure29.80 inHg
Wind6.9 mph NW
Humidity30%
Visibility—
Dew point25°
Tue, 1057° / 41°0Overcast
57 °Overcast

Summerville, Tuesday, 10 November

Overcast. High 57°, low 41°.

Pressure29.65 inHg
Wind15 mph SE
Humidity46%
Visibility—
Dew point31°
Wed, 1160° / 46°0Overcast
60 °Overcast

Summerville, Wednesday, 11 November

Overcast. High 60°, low 46°.

Pressure29.35 inHg
Wind14.6 mph NW
Humidity36%
Visibility—
Dew point30°
Thu, 1253° / 40°0Clear
53 °Clear

Summerville, Thursday, 12 November

Clear. High 53°, low 40°.

Pressure29.53 inHg
Wind21.5 mph W
Humidity30%
Visibility—
Dew point20°
Fri, 1353° / 38°0Overcast
53 °Overcast

Summerville, Friday, 13 November

Overcast. High 53°, low 38°.

Pressure29.80 inHg
Wind6.2 mph SW
Humidity29%
Visibility—
Dew point17°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 1442° / 26°0.04Climate normal
42 °Climate normal

Summerville, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high42°
Average low26°
Average precipitation0.04 in
Chance of precipitation20%
Record high69° (2025)
Record low-14° (2014)
Sun, 1541° / 25°0.02Climate normal
41 °Climate normal

Summerville, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high41°
Average low25°
Average precipitation0.02 in
Chance of precipitation12%
Record high65° (1975)
Record low-7° (2014)
Mon, 1642° / 24°0.01Climate normal
42 °Climate normal

Summerville, Monday, 16 November

Climate normal for this date — 60-year average.

Average high42°
Average low24°
Average precipitation0.01 in
Chance of precipitation5%
Record high63° (1979)
Record low-9° (2022)
Tue, 1740° / 24°0.02Climate normal
40 °Climate normal

Summerville, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high40°
Average low24°
Average precipitation0.02 in
Chance of precipitation10%
Record high62° (2001)
Record low2° (1996)
Wed, 1840° / 23°0.03Climate normal
40 °Climate normal

Summerville, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high40°
Average low23°
Average precipitation0.03 in
Chance of precipitation20%
Record high62° (2007)
Record low-4° (1996)
Thu, 1938° / 24°0.03Climate normal
38 °Climate normal

Summerville, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high38°
Average low24°
Average precipitation0.03 in
Chance of precipitation18%
Record high63° (2003)
Record low4° (1985)
Fri, 2038° / 22°0.02Climate normal
38 °Climate normal

Summerville, Friday, 20 November

Climate normal for this date — 60-year average.

Average high38°
Average low22°
Average precipitation0.02 in
Chance of precipitation13%
Record high62° (1990)
Record low-13° (1985)
Sat, 2138° / 21°0.01Climate normal
38 °Climate normal

Summerville, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high38°
Average low21°
Average precipitation0.01 in
Chance of precipitation10%
Record high60° (2012)
Record low-14° (1985)
Sun, 2238° / 22°0.02Climate normal
38 °Climate normal

Summerville, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high38°
Average low22°
Average precipitation0.02 in
Chance of precipitation13%
Record high60° (2017)
Record low-7° (1985)
Mon, 2336° / 21°0.02Climate normal
36 °Climate normal

Summerville, Monday, 23 November

Climate normal for this date — 60-year average.

Average high36°
Average low21°
Average precipitation0.02 in
Chance of precipitation17%
Record high62° (2017)
Record low-16° (1985)
Tue, 2437° / 21°0.01Climate normal
37 °Climate normal

Summerville, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high37°
Average low21°
Average precipitation0.01 in
Chance of precipitation5%
Record high58° (1990)
Record low-19° (1985)
Wed, 2534° / 20°0.04Climate normal
34 °Climate normal

Summerville, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high34°
Average low20°
Average precipitation0.04 in
Chance of precipitation22%
Record high64° (1960)
Record low-9° (2010)
Thu, 2633° / 19°0.02Climate normal
33 °Climate normal

Summerville, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high33°
Average low19°
Average precipitation0.02 in
Chance of precipitation18%
Record high59° (1998)
Record low-16° (1985)
Fri, 2732° / 18°0.02Climate normal
32 °Climate normal

Summerville, Friday, 27 November

Climate normal for this date — 60-year average.

Average high32°
Average low18°
Average precipitation0.02 in
Chance of precipitation20%
Record high62° (2017)
Record low-21° (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 Summerville, 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 Summerville, 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.