As of 08:38 MDT

Weather in Spring Valley, WY

39°

Spring Valley, Thursday, 15 October, 08:38

Clear. Feels like 37°. High 49°, low 32°.

Pressure30.47 inHg

Wind3.1 mph SW

Humidity90%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Spring Valley, WY: average high 49.4°, average low 30.1°. That is 1° below the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 17 October (61.2°), the coolest 30 October (19.8°).

49.4°/30.1°

Average high / low

−1°

Below normal

3 / 4

Wet days / normal

0.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
15 October – 24 October	53.5°	53.1°	+0.2°
25 October – 3 November	42.7°	46.5°	-2.1°
4 November – 13 November	at normal	42.3°	—

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).

Fri, 1650° / 28°

50 °

Spring Valley, Friday, 16 October

Clear. High 50°, low 28°.

Pressure30.65 inHg

Wind8.1 mph NE

Humidity64%

Visibility6.2 mi

Dew point31°

Sat, 1761° / 30°

61 °

Spring Valley, Saturday, 17 October

Clear. High 61°, low 30°.

Pressure30.30 inHg

Wind7.1 mph W

Humidity37%

Visibility6.2 mi

Dew point26°

Sun, 1859° / 29°

59 °

Spring Valley, Sunday, 18 October

Overcast. High 59°, low 29°.

Pressure30.09 inHg

Wind7.3 mph W

Humidity38%

Visibility6.2 mi

Dew point26°

Mon, 1958° / 33°

58 °

Spring Valley, Monday, 19 October

Clear. High 58°, low 33°.

Pressure30.03 inHg

Wind5.1 mph NE

Humidity48%

Visibility—

Dew point32°

Tue, 2057° / 40°

0.02

57 °

Spring Valley, Tuesday, 20 October

Light rain. High 57°, low 40°.

Pressure30.06 inHg

Wind7.5 mph SW

Humidity57%

Visibility—

Dew point35°

Wed, 2157° / 40°

57 °

Spring Valley, Wednesday, 21 October

Mostly clear. High 57°, low 40°.

Pressure29.77 inHg

Wind16.8 mph S

Humidity39%

Visibility—

Dew point31°

Thu, 2248° / 34°

0.04

48 °

Spring Valley, Thursday, 22 October

Light snow. High 48°, low 34°.

Pressure29.91 inHg

Wind12.7 mph SW

Humidity56%

Visibility—

Dew point29°

Fri, 2342° / 33°

0.02

42 °

Spring Valley, Friday, 23 October

Snow. High 42°, low 33°.

Pressure30.09 inHg

Wind19.6 mph W

Humidity55%

Visibility—

Dew point25°

Sat, 2453° / 29°

53 °

Spring Valley, Saturday, 24 October

Clear. High 53°, low 29°.

Pressure30.12 inHg

Wind15.7 mph SW

Humidity35%

Visibility—

Dew point18°

Sun, 2556° / 36°

56 °

Spring Valley, Sunday, 25 October

Overcast. High 56°, low 36°.

Pressure29.74 inHg

Wind22 mph S

Humidity26%

Visibility—

Dew point18°

Mon, 2654° / 29°

0.26

54 °

Spring Valley, Monday, 26 October

Snow. High 54°, low 29°.

Pressure29.53 inHg

Wind33.6 mph S

Humidity35%

Visibility—

Dew point26°

Tue, 2733° / 23°

33 °

Spring Valley, Tuesday, 27 October

Clear. High 33°, low 23°.

Pressure29.91 inHg

Wind21.3 mph W

Humidity45%

Visibility—

Dew point13°

Wed, 2839° / 25°

39 °

Spring Valley, Wednesday, 28 October

Clear. High 39°, low 25°.

Pressure29.91 inHg

Wind26.6 mph SW

Humidity48%

Visibility—

Dew point18°

Thu, 2941° / 21°

0.13

41 °

Spring Valley, Thursday, 29 October

Snow. High 41°, low 21°.

Pressure29.80 inHg

Wind25.1 mph SW

Humidity44%

Visibility—

Dew point19°

Fri, 3033° / 20°

33 °

Spring Valley, Friday, 30 October

Clear. High 33°, low 20°.

Pressure30.39 inHg

Wind21.6 mph W

Humidity59%

Visibility—

Dew point15°

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

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)

Thu, 1240° / 21°

0.07

40 °

Spring Valley, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high40°

Average low21°

Average precipitation0.07 in

Chance of precipitation25%

Record high63° (1999)

Record low-4° (2000)

Fri, 1340° / 22°

0.04

40 °

Spring Valley, Friday, 13 November

Climate normal for this date — 60-year average.

Average high40°

Average low22°

Average precipitation0.04 in

Chance of precipitation32%

Record high61° (1999)

Record low-2° (1972)

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.