Monthly outlook for Spring Valley, WY: average high 48.9°, average low 30.9°. That is 0.9° below the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 17 October (61.6°), the coolest 25 October (20.6°).
48.9°/30.9°
Average high / low
−0.9°
Below normal
2 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
50.7°
52.7°
-1.1°
26 October – 4 November
45.9°
45.9°
-0°
5 November – 14 November
at normal
41.6°
—
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).
Sat, 1762° / 35°0
62 °
Spring Valley, Saturday, 17 October
Clear. High 62°, low 35°.
Pressure30.30 inHg
Wind7.6 mph W
Humidity38%
Visibility6.2 mi
Dew point29°
Sun, 1860° / 31°0
60 °
Spring Valley, Sunday, 18 October
Overcast. High 60°, low 31°.
Pressure30.09 inHg
Wind6 mph W
Humidity37%
Visibility6.2 mi
Dew point26°
Mon, 1958° / 34°0.01
58 °
Spring Valley, Monday, 19 October
Light rain. High 58°, low 34°.
Pressure30.00 inHg
Wind0.4 mph W
Humidity44%
Visibility6.2 mi
Dew point34°
Tue, 2057° / 40°0.03
57 °
Spring Valley, Tuesday, 20 October
Light rain. High 57°, low 40°.
Pressure29.88 inHg
Wind8.3 mph SW
Humidity47%
Visibility—
Dew point33°
Wed, 2155° / 37°0
55 °
Spring Valley, Wednesday, 21 October
Partly cloudy. High 55°, low 37°.
Pressure30.00 inHg
Wind8.3 mph NE
Humidity67%
Visibility—
Dew point38°
Thu, 2252° / 39°0.03
52 °
Spring Valley, Thursday, 22 October
Light rain. High 52°, low 39°.
Pressure29.83 inHg
Wind19.3 mph W
Humidity55%
Visibility—
Dew point34°
Fri, 2338° / 27°0.02
38 °
Spring Valley, Friday, 23 October
Light snow. High 38°, low 27°.
Pressure29.91 inHg
Wind29.4 mph W
Humidity44%
Visibility—
Dew point18°
Sat, 2433° / 24°0.06
33 °
Spring Valley, Saturday, 24 October
Light snow. High 33°, low 24°.
Pressure30.39 inHg
Wind18 mph W
Humidity63%
Visibility—
Dew point19°
Sun, 2540° / 21°0
40 °
Spring Valley, Sunday, 25 October
Clear. High 40°, low 21°.
Pressure30.36 inHg
Wind13.8 mph W
Humidity33%
Visibility—
Dew point7°
Mon, 2641° / 27°0.03
41 °
Spring Valley, Monday, 26 October
Light snow. High 41°, low 27°.
Pressure29.91 inHg
Wind21.4 mph W
Humidity31%
Visibility—
Dew point11°
Tue, 2739° / 23°0.02
39 °
Spring Valley, Tuesday, 27 October
Light snow. High 39°, low 23°.
Pressure30.06 inHg
Wind15.7 mph W
Humidity48%
Visibility—
Dew point16°
Wed, 2850° / 25°0
50 °
Spring Valley, Wednesday, 28 October
Overcast. High 50°, low 25°.
Pressure29.94 inHg
Wind22.6 mph W
Humidity20%
Visibility—
Dew point6°
Thu, 2948° / 37°0.1
48 °
Spring Valley, Thursday, 29 October
Light rain. High 48°, low 37°.
Pressure30.09 inHg
Wind15.5 mph W
Humidity86%
Visibility—
Dew point35°
Fri, 3052° / 34°0
52 °
Spring Valley, Friday, 30 October
Partly cloudy. High 52°, low 34°.
Pressure30.00 inHg
Wind19.8 mph SW
Humidity33%
Visibility—
Dew point20°
Sat, 3145° / 33°0.02
45 °
Spring Valley, Saturday, 31 October
Light rain. High 45°, low 33°.
Pressure30.15 inHg
Wind15.5 mph W
Humidity48%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)
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.