As of 07:04 MDT

Weather in Summerville, SD

36°Current weather

Summerville, Sunday, 25 October, 07:04

Overcast. Feels like 31°. High 51°, low 35°.

Pressure30.45 inHg
Wind5.5 mph E
Humidity73%
Visibility6.2 mi
Dew point29°

Monthly outlook for Summerville, SD: average high 55.3°, average low 39.4°. That is 3.9° above the climate normal for October. Precipitation is expected on 4 days (about 0.6 inches), against a normal of 2 days and 0.6 inches. The warmest day looks like 6 November (66.4°), the coolest 26 October (32.2°).

55.3°/39.4°
Average high / low
+3.9°
Above normal
4 / 2
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
25 October – 3 November53.5°50°+2°
4 November – 13 November58.3°43.5°+8.2°
14 November – 23 Novemberat normal39.2°—

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).

Mon, 2641° / 32°0.18Snow
41 °Snow

Summerville, Monday, 26 October

Snow. High 41°, low 32°.

Pressure30.45 inHg
Wind11.8 mph E
Humidity69%
Visibility6.2 mi
Dew point30°
Tue, 2750° / 33°0Overcast
50 °Overcast

Summerville, Tuesday, 27 October

Overcast. High 50°, low 33°.

Pressure29.94 inHg
Wind13.7 mph SE
Humidity84%
Visibility6.2 mi
Dew point33°
Wed, 2860° / 36°0Clear
60 °Clear

Summerville, Wednesday, 28 October

Clear. High 60°, low 36°.

Pressure29.94 inHg
Wind10.3 mph W
Humidity37%
Visibility6.2 mi
Dew point30°
Thu, 2960° / 36°0Clear
60 °Clear

Summerville, Thursday, 29 October

Clear. High 60°, low 36°.

Pressure30.09 inHg
Wind9 mph NW
Humidity64%
Visibility—
Dew point38°
Fri, 3050° / 35°0.1Light rain
50 °Light rain

Summerville, Friday, 30 October

Light rain. High 50°, low 35°.

Pressure30.27 inHg
Wind12.7 mph E
Humidity60%
Visibility—
Dew point29°
Sat, 3154° / 46°0.15Light rain
54 °Light rain

Summerville, Saturday, 31 October

Light rain. High 54°, low 46°.

Pressure29.91 inHg
Wind8.7 mph E
Humidity96%
Visibility—
Dew point51°
Sun, 0162° / 47°0Overcast
62 °Overcast

Summerville, Sunday, 1 November

Overcast. High 62°, low 47°.

Pressure29.80 inHg
Wind13 mph S
Humidity63%
Visibility—
Dew point46°
Mon, 0254° / 38°0Overcast
54 °Overcast

Summerville, Monday, 2 November

Overcast. High 54°, low 38°.

Pressure29.85 inHg
Wind20.8 mph NW
Humidity36%
Visibility—
Dew point24°
Tue, 0354° / 36°0Clear
54 °Clear

Summerville, Tuesday, 3 November

Clear. High 54°, low 36°.

Pressure30.00 inHg
Wind10.6 mph NW
Humidity42%
Visibility—
Dew point25°
Wed, 0460° / 41°0Mostly clear
60 °Mostly clear

Summerville, Wednesday, 4 November

Mostly clear. High 60°, low 41°.

Pressure29.88 inHg
Wind6.7 mph W
Humidity34%
Visibility—
Dew point27°
Thu, 0563° / 42°0Partly cloudy
63 °Partly cloudy

Summerville, Thursday, 5 November

Partly cloudy. High 63°, low 42°.

Pressure29.91 inHg
Wind8 mph SW
Humidity33%
Visibility—
Dew point27°
Fri, 0666° / 48°0Mostly clear
66 °Mostly clear

Summerville, Friday, 6 November

Mostly clear. High 66°, low 48°.

Pressure29.68 inHg
Wind15.8 mph NW
Humidity29%
Visibility—
Dew point30°
Sat, 0753° / 42°0Overcast
53 °Overcast

Summerville, Saturday, 7 November

Overcast. High 53°, low 42°.

Pressure29.65 inHg
Wind20.2 mph SE
Humidity44%
Visibility—
Dew point29°
Sun, 0853° / 42°0.22Rain
53 °Rain

Summerville, Sunday, 8 November

Rain. High 53°, low 42°.

Pressure29.71 inHg
Wind10.8 mph NW
Humidity86%
Visibility—
Dew point43°
Mon, 0955° / 41°0Overcast
55 °Overcast

Summerville, Monday, 9 November

Overcast. High 55°, low 41°.

Pressure29.77 inHg
Wind22.9 mph NW
Humidity45%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1041° / 24°0.06Climate normal
41 °Climate normal

Summerville, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high41°
Average low24°
Average precipitation0.06 in
Chance of precipitation25%
Record high68° (2007)
Record low-8° (1986)
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)

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.