As of 04:18 MDT

Weather in Summerville, SD

35°Current weather

Summerville, Monday, 26 October, 04:18

Overcast. Feels like 28°. High 38°, low 26°.

Pressure30.50 inHg
Wind7.5 mph E
Humidity92%
Visibility6.2 mi
Dew point33°

Monthly outlook for Summerville, SD: average high 55.4°, average low 39.6°. That is 4.4° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 6 November (65.2°), the coolest 26 October (26.5°).

55.4°/39.6°
Average high / low
+4.4°
Above normal
2 / 3
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
26 October – 4 November52.5°49.3°+1.8°
5 November – 14 November60.2°42.9°+9.6°
15 November – 24 Novemberat normal38.7°—

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).

Tue, 2751° / 30°0Overcast
51 °Overcast

Summerville, Tuesday, 27 October

Overcast. High 51°, low 30°.

Pressure29.94 inHg
Wind12 mph SE
Humidity91%
Visibility6.2 mi
Dew point35°
Wed, 2859° / 35°0Overcast
59 °Overcast

Summerville, Wednesday, 28 October

Overcast. High 59°, low 35°.

Pressure29.91 inHg
Wind7.3 mph NW
Humidity68%
Visibility6.2 mi
Dew point40°
Thu, 2957° / 34°0Clear
57 °Clear

Summerville, Thursday, 29 October

Clear. High 57°, low 34°.

Pressure30.06 inHg
Wind9.1 mph SE
Humidity54%
Visibility6.2 mi
Dew point38°
Fri, 3051° / 35°0Partly cloudy
51 °Partly cloudy

Summerville, Friday, 30 October

Partly cloudy. High 51°, low 35°.

Pressure30.21 inHg
Wind13.6 mph E
Humidity64%
Visibility—
Dew point33°
Sat, 3158° / 46°0.02Light rain
58 °Light rain

Summerville, Saturday, 31 October

Light rain. High 58°, low 46°.

Pressure29.94 inHg
Wind12.5 mph SE
Humidity96%
Visibility—
Dew point51°
Sun, 0154° / 42°0Overcast
54 °Overcast

Summerville, Sunday, 1 November

Overcast. High 54°, low 42°.

Pressure29.91 inHg
Wind12.1 mph NW
Humidity78%
Visibility—
Dew point47°
Mon, 0249° / 40°0Overcast
49 °Overcast

Summerville, Monday, 2 November

Overcast. High 49°, low 40°.

Pressure29.94 inHg
Wind23.3 mph NW
Humidity57%
Visibility—
Dew point33°
Tue, 0352° / 36°0Clear
52 °Clear

Summerville, Tuesday, 3 November

Clear. High 52°, low 36°.

Pressure30.24 inHg
Wind12.8 mph NW
Humidity37%
Visibility—
Dew point22°
Wed, 0455° / 42°0Overcast
55 °Overcast

Summerville, Wednesday, 4 November

Overcast. High 55°, low 42°.

Pressure29.88 inHg
Wind14.7 mph SE
Humidity39%
Visibility—
Dew point26°
Thu, 0562° / 45°0Mostly clear
62 °Mostly clear

Summerville, Thursday, 5 November

Mostly clear. High 62°, low 45°.

Pressure29.91 inHg
Wind14.1 mph NW
Humidity36%
Visibility—
Dew point30°
Fri, 0665° / 45°0Overcast
65 °Overcast

Summerville, Friday, 6 November

Overcast. High 65°, low 45°.

Pressure29.77 inHg
Wind7.4 mph SE
Humidity32%
Visibility—
Dew point29°
Sat, 0765° / 47°0Overcast
65 °Overcast

Summerville, Saturday, 7 November

Overcast. High 65°, low 47°.

Pressure29.47 inHg
Wind17.4 mph SE
Humidity49%
Visibility—
Dew point38°
Sun, 0851° / 45°0.08Light rain
51 °Light rain

Summerville, Sunday, 8 November

Light rain. High 51°, low 45°.

Pressure29.56 inHg
Wind22.5 mph NW
Humidity71%
Visibility—
Dew point42°
Mon, 0954° / 42°0Partly cloudy
54 °Partly cloudy

Summerville, Monday, 9 November

Partly cloudy. High 54°, low 42°.

Pressure30.00 inHg
Wind19.4 mph NW
Humidity50%
Visibility—
Dew point31°
Tue, 1064° / 43°0Clear
64 °Clear

Summerville, Tuesday, 10 November

Clear. High 64°, low 43°.

Pressure30.03 inHg
Wind13.4 mph NW
Humidity39%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1139° / 23°0.01Climate normal
39 °Climate normal

Summerville, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high39°
Average low23°
Average precipitation0.01 in
Chance of precipitation10%
Record high65° (2005)
Record low-8° (1986)
Thu, 1241° / 23°0.02Climate normal
41 °Climate normal

Summerville, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high41°
Average low23°
Average precipitation0.02 in
Chance of precipitation13%
Record high72° (1999)
Record low-10° (2022)
Fri, 1342° / 25°0.02Climate normal
42 °Climate normal

Summerville, Friday, 13 November

Climate normal for this date — 60-year average.

Average high42°
Average low25°
Average precipitation0.02 in
Chance of precipitation13%
Record high65° (1981)
Record low-20° (1986)
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)

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.