As of 15:20 MDT

Weather in Summerville, SD

50°Current weather

Summerville, Tuesday, 27 October, 15:20

Clear. Feels like 47°. High 50°, low 33°.

Pressure29.83 inHg
Wind7 mph S
Humidity67%
Visibility6.2 mi
Dew point39°

Monthly outlook for Summerville, SD: average high 55.9°, average low 42.3°. That is 5.2° above the climate normal for October. Precipitation is expected on 2 days (about 0.6 inches), against a normal of 3 days and 0.6 inches. The warmest day looks like 8 November (62.6°), the coolest 27 October (32.8°).

55.9°/42.3°
Average high / low
+5.2°
Above normal
2 / 3
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
27 October – 5 November53.5°48.5°+2.7°
6 November – 15 November59.8°42.4°+9.7°
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
Wind13.8 mph NW
Humidity40%
Visibility6.2 mi
Dew point29°
Thu, 2957° / 35°0Clear
57 °Clear

Summerville, Thursday, 29 October

Clear. High 57°, low 35°.

Pressure30.12 inHg
Wind9.7 mph SE
Humidity48%
Visibility6.2 mi
Dew point34°
Fri, 3052° / 35°0Overcast
52 °Overcast

Summerville, Friday, 30 October

Overcast. High 52°, low 35°.

Pressure30.30 inHg
Wind11.2 mph E
Humidity66%
Visibility6.2 mi
Dew point36°
Sat, 3158° / 46°0Overcast
58 °Overcast

Summerville, Saturday, 31 October

Overcast. High 58°, low 46°.

Pressure30.00 inHg
Wind14.4 mph SE
Humidity87%
Visibility6.2 mi
Dew point51°
Sun, 0162° / 48°0Overcast
62 °Overcast

Summerville, Sunday, 1 November

Overcast. High 62°, low 48°.

Pressure29.88 inHg
Wind9.1 mph SE
Humidity78%
Visibility—
Dew point49°
Mon, 0249° / 37°0.59Rain
49 °Rain

Summerville, Monday, 2 November

Rain. High 49°, low 37°.

Pressure29.97 inHg
Wind30 mph NW
Humidity96%
Visibility—
Dew point37°
Tue, 0345° / 39°0.04Light rain
45 °Light rain

Summerville, Tuesday, 3 November

Light rain. High 45°, low 39°.

Pressure30.15 inHg
Wind16.6 mph NW
Humidity91%
Visibility—
Dew point40°
Wed, 0452° / 46°0Overcast
52 °Overcast

Summerville, Wednesday, 4 November

Overcast. High 52°, low 46°.

Pressure30.09 inHg
Wind8.6 mph N
Humidity88%
Visibility—
Dew point46°
Thu, 0552° / 49°0Overcast
52 °Overcast

Summerville, Thursday, 5 November

Overcast. High 52°, low 49°.

Pressure30.03 inHg
Wind8.3 mph N
Humidity74%
Visibility—
Dew point43°
Fri, 0657° / 46°0Overcast
57 °Overcast

Summerville, Friday, 6 November

Overcast. High 57°, low 46°.

Pressure30.12 inHg
Wind9.8 mph SE
Humidity55%
Visibility—
Dew point39°
Sat, 0760° / 43°0Clear
60 °Clear

Summerville, Saturday, 7 November

Clear. High 60°, low 43°.

Pressure29.97 inHg
Wind14.4 mph S
Humidity54%
Visibility—
Dew point38°
Sun, 0863° / 45°0Overcast
63 °Overcast

Summerville, Sunday, 8 November

Overcast. High 63°, low 45°.

Pressure29.88 inHg
Wind9.8 mph S
Humidity53%
Visibility—
Dew point39°
Mon, 0962° / 48°0Overcast
62 °Overcast

Summerville, Monday, 9 November

Overcast. High 62°, low 48°.

Pressure29.77 inHg
Wind17.4 mph SE
Humidity64%
Visibility—
Dew point44°
Tue, 1061° / 46°0Mostly clear
61 °Mostly clear

Summerville, Tuesday, 10 November

Mostly clear. High 61°, low 46°.

Pressure30.09 inHg
Wind10.9 mph W
Humidity53%
Visibility—
Dew point39°
Wed, 1156° / 43°0Partly cloudy
56 °Partly cloudy

Summerville, Wednesday, 11 November

Partly cloudy. High 56°, low 43°.

Pressure30.12 inHg
Wind18.7 mph NW
Humidity34%
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.