As of 06:59 MDT

Weather in Spring Valley, WY

46°

Spring Valley, Sunday, 18 October, 06:59

Overcast. Feels like 43°. High 62°, low 35°.

Pressure30.15 inHg

Wind4.9 mph SW

Humidity71%

Visibility6.2 mi

Dew point37°

See detailed hourly forecast

Monthly outlook for Spring Valley, WY: average high 56.3°, average low 37.5°. That is 3.9° above the climate normal for October. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 19 October (61.7°), the coolest 25 October (32.4°).

56.3°/37.5°

Average high / low

+3.9°

Above normal

2 / 4

Wet days / normal

0.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
18 October – 27 October	56.5°	51.7°	+2.7°
28 October – 6 November	56°	45°	+6.1°
7 November – 16 November	at normal	40.5°	—

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).

Mon, 1962° / 35°

62 °

Spring Valley, Monday, 19 October

Mostly clear. High 62°, low 35°.

Pressure30.06 inHg

Wind4.8 mph NE

Humidity45%

Visibility6.2 mi

Dew point33°

Tue, 2059° / 40°

0.02

59 °

Spring Valley, Tuesday, 20 October

Light rain. High 59°, low 40°.

Pressure30.06 inHg

Wind0.8 mph S

Humidity48%

Visibility6.2 mi

Dew point37°

Wed, 2159° / 38°

0.02

59 °

Spring Valley, Wednesday, 21 October

Light rain. High 59°, low 38°.

Pressure30.12 inHg

Wind9 mph NE

Humidity60%

Visibility6.2 mi

Dew point39°

Thu, 2258° / 40°

0.04

58 °

Spring Valley, Thursday, 22 October

Light rain. High 58°, low 40°.

Pressure29.94 inHg

Wind9.3 mph NE

Humidity64%

Visibility—

Dew point41°

Fri, 2348° / 36°

0.58

48 °

Spring Valley, Friday, 23 October

Rain. High 48°, low 36°.

Pressure29.77 inHg

Wind20.1 mph W

Humidity58%

Visibility—

Dew point34°

Sat, 2448° / 35°

0.01

48 °

Spring Valley, Saturday, 24 October

Light rain. High 48°, low 35°.

Pressure30.36 inHg

Wind16 mph SW

Humidity52%

Visibility—

Dew point27°

Sun, 2555° / 32°

55 °

Spring Valley, Sunday, 25 October

Clear. High 55°, low 32°.

Pressure30.27 inHg

Wind6 mph W

Humidity25%

Visibility—

Dew point13°

Mon, 2656° / 36°

56 °

Spring Valley, Monday, 26 October

Clear. High 56°, low 36°.

Pressure30.03 inHg

Wind9.8 mph W

Humidity28%

Visibility—

Dew point18°

Tue, 2757° / 38°

57 °

Spring Valley, Tuesday, 27 October

Partly cloudy. High 57°, low 38°.

Pressure29.94 inHg

Wind17.7 mph W

Humidity28%

Visibility—

Dew point20°

Wed, 2855° / 39°

55 °

Spring Valley, Wednesday, 28 October

Partly cloudy. High 55°, low 39°.

Pressure29.97 inHg

Wind18.2 mph W

Humidity24%

Visibility—

Dew point16°

Thu, 2954° / 36°

54 °

Spring Valley, Thursday, 29 October

Clear. High 54°, low 36°.

Pressure29.94 inHg

Wind20.3 mph W

Humidity27%

Visibility—

Dew point16°

Fri, 3052° / 38°

52 °

Spring Valley, Friday, 30 October

Overcast. High 52°, low 38°.

Pressure29.88 inHg

Wind22.9 mph W

Humidity23%

Visibility—

Dew point11°

Sat, 3156° / 40°

56 °

Spring Valley, Saturday, 31 October

Overcast. High 56°, low 40°.

Pressure29.88 inHg

Wind22.9 mph W

Humidity18%

Visibility—

Dew point9°

Sun, 0159° / 39°

59 °

Spring Valley, Sunday, 1 November

Mostly clear. High 59°, low 39°.

Pressure30.06 inHg

Wind15.4 mph W

Humidity16%

Visibility—

Dew point8°

Mon, 0261° / 42°

61 °

Spring Valley, Monday, 2 November

Overcast. High 61°, low 42°.

Pressure30.09 inHg

Wind19.8 mph W

Humidity18%

Visibility—

Dew point11°

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

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)

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)

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.