As of 21:12 CDT

Weather in Spring Valley, SD

47°

Spring Valley, Thursday, 15 October, 21:12

Overcast. Feels like 39°. High 51°, low 46°.

Pressure30.24 inHg

Wind20.4 mph NW

Humidity67%

Visibility6.2 mi

Dew point36°

See detailed hourly forecast

Monthly outlook for Spring Valley, SD: average high 58.2°, average low 44°. That is 0.5° above the climate normal for October. Precipitation is expected on 6 days (about 1.5 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 22 October (76.7°), the coolest 29 October (35.9°).

58.2°/44°

Average high / low

+0.5°

Above normal

6 / 3

Wet days / normal

1.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
15 October – 24 October	63.1°	58.8°	+2.4°
25 October – 3 November	50.1°	53.5°	-1.9°
4 November – 13 November	at normal	47.6°	—

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).

Fri, 1649° / 38°

49 °

Spring Valley, Friday, 16 October

Clear. High 49°, low 38°.

Pressure30.65 inHg

Wind15.8 mph NW

Humidity56%

Visibility6.2 mi

Dew point29°

Sat, 1760° / 36°

60 °

Spring Valley, Saturday, 17 October

Clear. High 60°, low 36°.

Pressure30.36 inHg

Wind15.1 mph S

Humidity44%

Visibility6.2 mi

Dew point32°

Sun, 1864° / 44°

64 °

Spring Valley, Sunday, 18 October

Clear. High 64°, low 44°.

Pressure30.12 inHg

Wind13.4 mph S

Humidity49%

Visibility6.2 mi

Dew point38°

Mon, 1960° / 47°

60 °

Spring Valley, Monday, 19 October

Overcast. High 60°, low 47°.

Pressure30.12 inHg

Wind10.3 mph S

Humidity65%

Visibility6.2 mi

Dew point44°

Tue, 2066° / 47°

66 °

Spring Valley, Tuesday, 20 October

Clear. High 66°, low 47°.

Pressure30.06 inHg

Wind13.5 mph S

Humidity60%

Visibility—

Dew point46°

Wed, 2172° / 53°

0.04

72 °

Spring Valley, Wednesday, 21 October

Light rain. High 72°, low 53°.

Pressure30.03 inHg

Wind12.3 mph S

Humidity64%

Visibility—

Dew point52°

Thu, 2277° / 56°

77 °

Spring Valley, Thursday, 22 October

Partly cloudy. High 77°, low 56°.

Pressure29.97 inHg

Wind15.3 mph S

Humidity63%

Visibility—

Dew point58°

Fri, 2371° / 62°

0.08

71 °

Spring Valley, Friday, 23 October

Light rain. High 71°, low 62°.

Pressure29.80 inHg

Wind24.5 mph SE

Humidity39%

Visibility—

Dew point44°

Sat, 2461° / 45°

0.01

61 °

Spring Valley, Saturday, 24 October

Light rain. High 61°, low 45°.

Pressure30.12 inHg

Wind25.5 mph S

Humidity37%

Visibility—

Dew point29°

Sun, 2552° / 39°

52 °

Spring Valley, Sunday, 25 October

Overcast. High 52°, low 39°.

Pressure30.42 inHg

Wind10.4 mph W

Humidity36%

Visibility—

Dew point22°

Mon, 2645° / 38°

0.99

45 °

Spring Valley, Monday, 26 October

Rain. High 45°, low 38°.

Pressure30.03 inHg

Wind15 mph N

Humidity94%

Visibility—

Dew point37°

Tue, 2747° / 38°

0.04

47 °

Spring Valley, Tuesday, 27 October

Light rain. High 47°, low 38°.

Pressure30.06 inHg

Wind10.7 mph NW

Humidity80%

Visibility—

Dew point37°

Wed, 2843° / 38°

0.07

43 °

Spring Valley, Wednesday, 28 October

Light rain. High 43°, low 38°.

Pressure29.94 inHg

Wind12.3 mph NW

Humidity82%

Visibility—

Dew point35°

Thu, 2957° / 36°

57 °

Spring Valley, Thursday, 29 October

Overcast. High 57°, low 36°.

Pressure29.97 inHg

Wind12.4 mph W

Humidity54%

Visibility—

Dew point34°

Fri, 3058° / 41°

58 °

Spring Valley, Friday, 30 October

Partly cloudy. High 58°, low 41°.

Pressure30.06 inHg

Wind8.5 mph SE

Humidity36%

Visibility—

Dew point28°

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

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)

Tue, 1045° / 29°

0.08

45 °

Spring Valley, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high45°

Average low29°

Average precipitation0.08 in

Chance of precipitation20%

Record high66° (2016)

Record low5° (1986)

Wed, 1144° / 28°

0.04

44 °

Spring Valley, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high44°

Average low28°

Average precipitation0.04 in

Chance of precipitation17%

Record high68° (2005)

Record low-8° (1986)

Thu, 1243° / 28°

0.06

43 °

Spring Valley, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high43°

Average low28°

Average precipitation0.06 in

Chance of precipitation25%

Record high67° (2001)

Record low6° (1986)

Fri, 1346° / 29°

0.04

46 °

Spring Valley, Friday, 13 November

Climate normal for this date — 60-year average.

Average high46°

Average low29°

Average precipitation0.04 in

Chance of precipitation22%

Record high71° (1999)

Record low1° (1986)

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.