As of 05:35 MDT

Weather in Spring Valley, WY

39°

Spring Valley, Tuesday, 13 October, 05:35

Overcast. Feels like 38°. High 39°, low 34°.

Pressure29.88 inHg

Wind3 mph W

Humidity95%

Visibility4.5 mi

Dew point38°

See detailed hourly forecast

Monthly outlook for Spring Valley, WY: average high 43.7°, average low 28.1°. That is 4.8° below the climate normal for October. Precipitation is expected on 6 days (about 1.5 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 19 October (62°), the coolest 24 October (17.1°).

43.7°/28.1°

Average high / low

−4.8°

Below normal

6 / 4

Wet days / normal

1.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
13 October – 22 October	47.6°	54°	-3.5°
23 October – 1 November	37.2°	47.8°	-5.9°
2 November – 11 November	at normal	43.1°	—

October records over 66 years

79°4 October 2024All-time high

-11.9°30 October 2019All-time low

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

Wed, 1442° / 32°

0.06

42 °

Spring Valley, Wednesday, 14 October

Light rain. High 42°, low 32°.

Pressure30.12 inHg

Wind4.5 mph NE

Humidity74%

Visibility6.2 mi

Dew point36°

Thu, 1549° / 29°

49 °

Spring Valley, Thursday, 15 October

Partly cloudy. High 49°, low 29°.

Pressure30.50 inHg

Wind17.4 mph E

Humidity55%

Visibility6.2 mi

Dew point32°

Fri, 1649° / 27°

49 °

Spring Valley, Friday, 16 October

Clear. High 49°, low 27°.

Pressure30.65 inHg

Wind10.7 mph NE

Humidity66%

Visibility6.2 mi

Dew point30°

Sat, 1759° / 31°

59 °

Spring Valley, Saturday, 17 October

Mostly clear. High 59°, low 31°.

Pressure30.24 inHg

Wind11.6 mph W

Humidity41%

Visibility—

Dew point29°

Sun, 1857° / 35°

57 °

Spring Valley, Sunday, 18 October

Clear. High 57°, low 35°.

Pressure30.09 inHg

Wind11.7 mph W

Humidity43%

Visibility—

Dew point29°

Mon, 1962° / 41°

62 °

Spring Valley, Monday, 19 October

Clear. High 62°, low 41°.

Pressure29.83 inHg

Wind20.5 mph SW

Humidity20%

Visibility—

Dew point17°

Tue, 2054° / 33°

0.66

54 °

Spring Valley, Tuesday, 20 October

Snow. High 54°, low 33°.

Pressure29.59 inHg

Wind17.7 mph W

Humidity36%

Visibility—

Dew point26°

Wed, 2132° / 25°

0.2

32 °

Spring Valley, Wednesday, 21 October

Snow. High 32°, low 25°.

Pressure29.91 inHg

Wind15 mph W

Humidity93%

Visibility—

Dew point29°

Thu, 2232° / 22°

32 °

Spring Valley, Thursday, 22 October

Light snow. High 32°, low 22°.

Pressure30.06 inHg

Wind20.6 mph W

Humidity89%

Visibility—

Dew point28°

Fri, 2332° / 25°

0.09

32 °

Spring Valley, Friday, 23 October

Light snow. High 32°, low 25°.

Pressure30.21 inHg

Wind13.2 mph SW

Humidity98%

Visibility—

Dew point29°

Sat, 2433° / 17°

0.11

33 °

Spring Valley, Saturday, 24 October

Light snow. High 33°, low 17°.

Pressure30.36 inHg

Wind8.9 mph SW

Humidity98%

Visibility—

Dew point28°

Sun, 2533° / 19°

33 °

Spring Valley, Sunday, 25 October

Overcast. High 33°, low 19°.

Pressure30.30 inHg

Wind10.9 mph W

Humidity80%

Visibility—

Dew point23°

Mon, 2636° / 25°

36 °

Spring Valley, Monday, 26 October

Overcast. High 36°, low 25°.

Pressure30.03 inHg

Wind22.3 mph E

Humidity79%

Visibility—

Dew point26°

Tue, 2741° / 24°

41 °

Spring Valley, Tuesday, 27 October

Overcast. High 41°, low 24°.

Pressure30.27 inHg

Wind17 mph E

Humidity79%

Visibility—

Dew point28°

Wed, 2848° / 31°

48 °

Spring Valley, Wednesday, 28 October

Mostly clear. High 48°, low 31°.

Pressure30.03 inHg

Wind8.7 mph SW

Humidity75%

Visibility—

Dew point37°

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

Thu, 2946° / 27°

0.07

46 °

Spring Valley, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high46°

Average low27°

Average precipitation0.07 in

Chance of precipitation42%

Record high67° (1964)

Record low0° (2019)

Fri, 3044° / 26°

0.06

44 °

Spring Valley, Friday, 30 October

Climate normal for this date — 60-year average.

Average high44°

Average low26°

Average precipitation0.06 in

Chance of precipitation37%

Record high66° (1962)

Record low-12° (2019)

Sat, 3144° / 26°

0.06

44 °

Spring Valley, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high44°

Average low26°

Average precipitation0.06 in

Chance of precipitation30%

Record high64° (2014)

Record low-4° (1991)

Sun, 0144° / 25°

0.04

44 °

Spring Valley, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high44°

Average low25°

Average precipitation0.04 in

Chance of precipitation23%

Record high62° (1965)

Record low0° (1972)

Mon, 0244° / 25°

0.06

44 °

Spring Valley, Monday, 2 November

Climate normal for this date — 60-year average.

Average high44°

Average low25°

Average precipitation0.06 in

Chance of precipitation23%

Record high63° (2020)

Record low6° (2019)

Tue, 0344° / 24°

0.04

44 °

Spring Valley, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high44°

Average low24°

Average precipitation0.04 in

Chance of precipitation15%

Record high62° (2020)

Record low-7° (1991)

Wed, 0445° / 24°

0.02

45 °

Spring Valley, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high45°

Average low24°

Average precipitation0.02 in

Chance of precipitation15%

Record high62° (2020)

Record low-5° (1994)

Thu, 0545° / 26°

0.04

45 °

Spring Valley, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high45°

Average low26°

Average precipitation0.04 in

Chance of precipitation28%

Record high63° (1980)

Record low-1° (1961)

Fri, 0644° / 26°

0.03

44 °

Spring Valley, Friday, 6 November

Climate normal for this date — 60-year average.

Average high44°

Average low26°

Average precipitation0.03 in

Chance of precipitation22%

Record high64° (1999)

Record low-5° (1996)

Sat, 0744° / 25°

0.05

44 °

Spring Valley, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high44°

Average low25°

Average precipitation0.05 in

Chance of precipitation20%

Record high64° (1999)

Record low-6° (2003)

Sun, 0842° / 24°

0.07

42 °

Spring Valley, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high42°

Average low24°

Average precipitation0.07 in

Chance of precipitation35%

Record high59° (2006)

Record low2° (2000)

Mon, 0942° / 23°

0.09

42 °

Spring Valley, Monday, 9 November

Climate normal for this date — 60-year average.

Average high42°

Average low23°

Average precipitation0.09 in

Chance of precipitation38%

Record high60° (2016)

Record low-3° (1966)

Tue, 1040° / 22°

0.06

40 °

Spring Valley, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high40°

Average low22°

Average precipitation0.06 in

Chance of precipitation37%

Record high59° (2005)

Record low3° (1985)

Wed, 1140° / 22°

0.04

40 °

Spring Valley, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high40°

Average low22°

Average precipitation0.04 in

Chance of precipitation20%

Record high60° (1999)

Record low-6° (2000)

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, WY 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, WY 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.