As of 02:16 MDT

Weather in Spring Valley, WY

43°

Spring Valley, Monday, 19 October, 02:16

Clear. Feels like 40°. High 60°, low 35°.

Pressure30.09 inHg

Wind4.7 mph SW

Humidity61%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Monthly outlook for Spring Valley, WY: average high 47.3°, average low 30°. That is 0.7° below the climate normal for October. Precipitation is expected on 5 days (about 0.9 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 20 October (60.3°), the coolest 31 October (13.9°).

47.3°/30°

Average high / low

−0.7°

Below normal

5 / 4

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
19 October – 28 October	55.7°	51.1°	+2.6°
29 October – 7 November	33.4°	44.5°	-6.2°
8 November – 17 November	at normal	39.9°	—

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).

Tue, 2060° / 36°

0.01

60 °

Spring Valley, Tuesday, 20 October

Light rain. High 60°, low 36°.

Pressure30.09 inHg

Wind1 mph NE

Humidity50%

Visibility6.2 mi

Dew point38°

Wed, 2159° / 36°

0.03

59 °

Spring Valley, Wednesday, 21 October

Light rain. High 59°, low 36°.

Pressure30.12 inHg

Wind7.2 mph NE

Humidity60%

Visibility6.2 mi

Dew point41°

Thu, 2258° / 41°

0.01

58 °

Spring Valley, Thursday, 22 October

Light rain. High 58°, low 41°.

Pressure30.03 inHg

Wind9.4 mph NE

Humidity67%

Visibility6.2 mi

Dew point44°

Fri, 2348° / 37°

0.13

48 °

Spring Valley, Friday, 23 October

Light rain. High 48°, low 37°.

Pressure29.83 inHg

Wind22.9 mph SW

Humidity54%

Visibility—

Dew point31°

Sat, 2447° / 31°

0.01

47 °

Spring Valley, Saturday, 24 October

Light snow. High 47°, low 31°.

Pressure30.15 inHg

Wind11.4 mph W

Humidity56%

Visibility—

Dew point26°

Sun, 2556° / 33°

56 °

Spring Valley, Sunday, 25 October

Clear. High 56°, low 33°.

Pressure30.15 inHg

Wind17.7 mph W

Humidity19%

Visibility—

Dew point8°

Mon, 2653° / 36°

53 °

Spring Valley, Monday, 26 October

Mostly clear. High 53°, low 36°.

Pressure29.97 inHg

Wind7.5 mph SW

Humidity23%

Visibility—

Dew point11°

Tue, 2760° / 36°

60 °

Spring Valley, Tuesday, 27 October

Clear. High 60°, low 36°.

Pressure29.83 inHg

Wind11.7 mph W

Humidity26%

Visibility—

Dew point17°

Wed, 2856° / 39°

0.13

56 °

Spring Valley, Wednesday, 28 October

Rain. High 56°, low 39°.

Pressure29.65 inHg

Wind19.6 mph SW

Humidity36%

Visibility—

Dew point26°

Thu, 2941° / 24°

0.22

41 °

Spring Valley, Thursday, 29 October

Snow. High 41°, low 24°.

Pressure29.77 inHg

Wind27.1 mph W

Humidity66%

Visibility—

Dew point18°

Fri, 3028° / 16°

0.19

28 °

Spring Valley, Friday, 30 October

Light snow. High 28°, low 16°.

Pressure29.94 inHg

Wind24.4 mph SW

Humidity76%

Visibility—

Dew point21°

Sat, 3126° / 14°

26 °

Spring Valley, Saturday, 31 October

Overcast. High 26°, low 14°.

Pressure30.36 inHg

Wind21.5 mph W

Humidity80%

Visibility—

Dew point18°

Sun, 0134° / 18°

34 °

Spring Valley, Sunday, 1 November

Overcast. High 34°, low 18°.

Pressure30.24 inHg

Wind17.5 mph W

Humidity63%

Visibility—

Dew point19°

Mon, 0239° / 22°

39 °

Spring Valley, Monday, 2 November

Overcast. High 39°, low 22°.

Pressure29.80 inHg

Wind10.9 mph SW

Humidity60%

Visibility—

Dew point23°

Tue, 0332° / 25°

0.16

32 °

Spring Valley, Tuesday, 3 November

Snow. High 32°, low 25°.

Pressure29.88 inHg

Wind20.5 mph W

Humidity78%

Visibility—

Dew point20°

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

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)

Sat, 1439° / 21°

0.07

39 °

Spring Valley, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high39°

Average low21°

Average precipitation0.07 in

Chance of precipitation25%

Record high61° (1999)

Record low-8° (1978)

Sun, 1539° / 19°

0.02

39 °

Spring Valley, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high39°

Average low19°

Average precipitation0.02 in

Chance of precipitation12%

Record high63° (1999)

Record low-11° (1978)

Mon, 1639° / 20°

0.04

39 °

Spring Valley, Monday, 16 November

Climate normal for this date — 60-year average.

Average high39°

Average low20°

Average precipitation0.04 in

Chance of precipitation23%

Record high61° (1999)

Record low-5° (2014)

Tue, 1738° / 19°

0.06

38 °

Spring Valley, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high38°

Average low19°

Average precipitation0.06 in

Chance of precipitation35%

Record high57° (1999)

Record low-5° (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.