As of 10:39 CDT

Weather in Spring Valley, SD

74°

Spring Valley, Sunday, 11 October, 10:39

Overcast. Feels like 73°. High 83°, low 63°.

Pressure29.71 inHg

Wind11.9 mph S

Humidity47%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

Monthly outlook for Spring Valley, SD: average high 66.7°, average low 49.1°. That is 4.1° above the climate normal for October. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 3 days and 1.1 inches. The warmest day looks like 11 October (83.4°), the coolest 17 October (34.6°).

66.7°/49.1°

Average high / low

+4.1°

Above normal

3 / 3

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
11 October – 20 October	66.5°	60.4°	+3.4°
21 October – 30 October	67.1°	56.2°	+6.1°
31 October – 9 November	at normal	50.4°	—

October records over 66 years

91.4°3 October 2025All-time high

11.1°27 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Davis (14 mi).

Mon, 1282° / 57°

82 °

Spring Valley, Monday, 12 October

Clear. High 82°, low 57°.

Pressure29.59 inHg

Wind5.4 mph SW

Humidity47%

Visibility6.2 mi

Dew point57°

Tue, 1360° / 50°

60 °

Spring Valley, Tuesday, 13 October

Overcast. High 60°, low 50°.

Pressure30.00 inHg

Wind10.5 mph N

Humidity58%

Visibility6.2 mi

Dew point43°

Wed, 1461° / 46°

61 °

Spring Valley, Wednesday, 14 October

Mostly clear. High 61°, low 46°.

Pressure30.21 inHg

Wind8.3 mph NE

Humidity51%

Visibility6.2 mi

Dew point39°

Thu, 1555° / 49°

0.82

55 °

Spring Valley, Thursday, 15 October

Rain. High 55°, low 49°.

Pressure30.15 inHg

Wind18.9 mph NW

Humidity72%

Visibility—

Dew point46°

Fri, 1656° / 42°

56 °

Spring Valley, Friday, 16 October

Clear. High 56°, low 42°.

Pressure30.65 inHg

Wind14.3 mph N

Humidity54%

Visibility—

Dew point35°

Sat, 1756° / 35°

56 °

Spring Valley, Saturday, 17 October

Overcast. High 56°, low 35°.

Pressure30.47 inHg

Wind18.5 mph S

Humidity25%

Visibility—

Dew point15°

Sun, 1870° / 45°

70 °

Spring Valley, Sunday, 18 October

Partly cloudy. High 70°, low 45°.

Pressure29.97 inHg

Wind19.3 mph S

Humidity27%

Visibility—

Dew point26°

Mon, 1970° / 48°

70 °

Spring Valley, Monday, 19 October

Partly cloudy. High 70°, low 48°.

Pressure30.15 inHg

Wind13 mph SE

Humidity35%

Visibility—

Dew point35°

Tue, 2071° / 49°

71 °

Spring Valley, Tuesday, 20 October

Clear. High 71°, low 49°.

Pressure29.91 inHg

Wind19.6 mph S

Humidity41%

Visibility—

Dew point39°

Wed, 2170° / 54°

70 °

Spring Valley, Wednesday, 21 October

Clear. High 70°, low 54°.

Pressure29.97 inHg

Wind18 mph S

Humidity43%

Visibility—

Dew point41°

Thu, 2272° / 51°

0.06

72 °

Spring Valley, Thursday, 22 October

Light rain. High 72°, low 51°.

Pressure30.09 inHg

Wind11.5 mph SE

Humidity43%

Visibility—

Dew point43°

Fri, 2370° / 53°

0.04

70 °

Spring Valley, Friday, 23 October

Light rain. High 70°, low 53°.

Pressure30.12 inHg

Wind6.3 mph N

Humidity63%

Visibility—

Dew point52°

Sat, 2475° / 52°

75 °

Spring Valley, Saturday, 24 October

Clear. High 75°, low 52°.

Pressure30.06 inHg

Wind14.2 mph S

Humidity47%

Visibility—

Dew point46°

Sun, 2562° / 50°

62 °

Spring Valley, Sunday, 25 October

Partly cloudy. High 62°, low 50°.

Pressure30.12 inHg

Wind19.7 mph NW

Humidity33%

Visibility—

Dew point31°

Mon, 2654° / 41°

54 °

Spring Valley, Monday, 26 October

Clear. High 54°, low 41°.

Pressure30.09 inHg

Wind14.9 mph NW

Humidity47%

Visibility—

Dew point30°

From day 17 onward the outlook is built from 60-year climate statistics

Tue, 2755° / 39°

0.08

55 °

Spring Valley, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high55°

Average low39°

Average precipitation0.08 in

Chance of precipitation22%

Record high79° (1999)

Record low11° (2020)

Wed, 2854° / 38°

0.04

54 °

Spring Valley, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high54°

Average low38°

Average precipitation0.04 in

Chance of precipitation18%

Record high76° (2016)

Record low19° (2017)

Thu, 2954° / 38°

0.06

54 °

Spring Valley, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high54°

Average low38°

Average precipitation0.06 in

Chance of precipitation23%

Record high70° (2004)

Record low22° (1991)

Fri, 3053° / 37°

0.13

53 °

Spring Valley, Friday, 30 October

Climate normal for this date — 60-year average.

Average high53°

Average low37°

Average precipitation0.13 in

Chance of precipitation27%

Record high71° (1965)

Record low17° (1991)

Sat, 3153° / 35°

0.07

53 °

Spring Valley, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high53°

Average low35°

Average precipitation0.07 in

Chance of precipitation23%

Record high74° (1990)

Record low14° (2002)

Sun, 0151° / 36°

0.07

51 °

Spring Valley, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.07 in

Chance of precipitation18%

Record high73° (1990)

Record low15° (2002)

Mon, 0251° / 35°

0.04

51 °

Spring Valley, Monday, 2 November

Climate normal for this date — 60-year average.

Average high51°

Average low35°

Average precipitation0.04 in

Chance of precipitation18%

Record high74° (2005)

Record low11° (1991)

Tue, 0351° / 35°

0.05

51 °

Spring Valley, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high51°

Average low35°

Average precipitation0.05 in

Chance of precipitation23%

Record high73° (1978)

Record low3° (1991)

Wed, 0451° / 33°

0.02

51 °

Spring Valley, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high51°

Average low33°

Average precipitation0.02 in

Chance of precipitation12%

Record high71° (1975)

Record low-14° (1991)

Thu, 0551° / 34°

0.04

51 °

Spring Valley, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high51°

Average low34°

Average precipitation0.04 in

Chance of precipitation22%

Record high74° (2001)

Record low5° (1990)

Fri, 0650° / 34°

0.03

50 °

Spring Valley, Friday, 6 November

Climate normal for this date — 60-year average.

Average high50°

Average low34°

Average precipitation0.03 in

Chance of precipitation17%

Record high76° (2020)

Record low6° (1991)

Sat, 0750° / 33°

0.02

50 °

Spring Valley, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high50°

Average low33°

Average precipitation0.02 in

Chance of precipitation13%

Record high73° (2020)

Record low-12° (1991)

Sun, 0849° / 33°

0.06

49 °

Spring Valley, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high49°

Average low33°

Average precipitation0.06 in

Chance of precipitation15%

Record high78° (1999)

Record low-3° (1991)

Mon, 0947° / 33°

0.13

47 °

Spring Valley, Monday, 9 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.13 in

Chance of precipitation25%

Record high72° (1999)

Record low14° (2018)

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 Spring Valley, 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 Spring Valley, 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.