As of 11:27 MDT

Weather in Summerville, SD

39°Current weather

Summerville, Tuesday, 27 October, 11:27

Overcast. Feels like 32°. High 55°, low 33°.

Pressure29.94 inHg
Wind12.3 mph S
Humidity94%
Visibility6.2 mi
Dew point38°

Monthly outlook for Summerville, SD: average high 56.9°, average low 42.3°. That is 5.8° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 7 November (69.3°), the coolest 27 October (32.8°).

56.9°/42.3°
Average high / low
+5.8°
Above normal
2 / 3
Wet days / normal
0.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
27 October – 5 November55.2°48.5°+3.7°
6 November – 15 November59.7°42.4°+9.6°
16 November – 25 Novemberat normal38°—

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).

Wed, 2857° / 37°0Clear
57 °Clear

Summerville, Wednesday, 28 October

Clear. High 57°, low 37°.

Pressure29.91 inHg
Wind13.5 mph NW
Humidity38%
Visibility6.2 mi
Dew point29°
Thu, 2957° / 35°0Clear
57 °Clear

Summerville, Thursday, 29 October

Clear. High 57°, low 35°.

Pressure30.09 inHg
Wind9 mph SE
Humidity50%
Visibility6.2 mi
Dew point35°
Fri, 3053° / 36°0Mostly clear
53 °Mostly clear

Summerville, Friday, 30 October

Mostly clear. High 53°, low 36°.

Pressure30.27 inHg
Wind11.1 mph E
Humidity68%
Visibility6.2 mi
Dew point38°
Sat, 3160° / 47°0.01Light rain
60 °Light rain

Summerville, Saturday, 31 October

Light rain. High 60°, low 47°.

Pressure30.00 inHg
Wind13.5 mph SE
Humidity92%
Visibility—
Dew point51°
Sun, 0164° / 48°0Overcast
64 °Overcast

Summerville, Sunday, 1 November

Overcast. High 64°, low 48°.

Pressure29.88 inHg
Wind13 mph SE
Humidity71%
Visibility—
Dew point49°
Mon, 0252° / 44°0.56Rain
52 °Rain

Summerville, Monday, 2 November

Rain. High 52°, low 44°.

Pressure29.83 inHg
Wind14.7 mph NW
Humidity95%
Visibility—
Dew point50°
Tue, 0348° / 43°0.08Light rain
48 °Light rain

Summerville, Tuesday, 3 November

Light rain. High 48°, low 43°.

Pressure30.24 inHg
Wind13.7 mph NW
Humidity88%
Visibility—
Dew point42°
Wed, 0452° / 48°0.02Light rain
52 °Light rain

Summerville, Wednesday, 4 November

Light rain. High 52°, low 48°.

Pressure30.18 inHg
Wind5.3 mph SE
Humidity90%
Visibility—
Dew point48°
Thu, 0553° / 46°0Overcast
53 °Overcast

Summerville, Thursday, 5 November

Overcast. High 53°, low 46°.

Pressure30.06 inHg
Wind7.9 mph SE
Humidity83%
Visibility—
Dew point46°
Fri, 0661° / 43°0Overcast
61 °Overcast

Summerville, Friday, 6 November

Overcast. High 61°, low 43°.

Pressure29.94 inHg
Wind10.6 mph S
Humidity60%
Visibility—
Dew point40°
Sat, 0769° / 48°0Overcast
69 °Overcast

Summerville, Saturday, 7 November

Overcast. High 69°, low 48°.

Pressure29.71 inHg
Wind7.5 mph S
Humidity29%
Visibility—
Dew point29°
Sun, 0862° / 51°0Mostly clear
62 °Mostly clear

Summerville, Sunday, 8 November

Mostly clear. High 62°, low 51°.

Pressure29.65 inHg
Wind22.7 mph NW
Humidity44%
Visibility—
Dew point39°
Mon, 0954° / 41°0Clear
54 °Clear

Summerville, Monday, 9 November

Clear. High 54°, low 41°.

Pressure30.09 inHg
Wind22.6 mph NW
Humidity51%
Visibility—
Dew point32°
Tue, 1052° / 36°0Overcast
52 °Overcast

Summerville, Tuesday, 10 November

Overcast. High 52°, low 36°.

Pressure30.18 inHg
Wind12.1 mph SE
Humidity53%
Visibility—
Dew point30°
Wed, 1160° / 39°0Overcast
60 °Overcast

Summerville, Wednesday, 11 November

Overcast. High 60°, low 39°.

Pressure29.83 inHg
Wind5.9 mph NW
Humidity33%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)

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.