Monthly outlook for Spring Valley, IA: average high 66.7°, average low 53.2°. That is 3.1° above the climate normal for October. Precipitation is expected on 6 days (about 1.9 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 12 October (88°), the coolest 17 October (38°).
66.7°/53.2°
Average high / low
+3.1°
Above normal
6 / 4
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
66.4°
62.4°
+2.3°
22 October – 31 October
67.2°
58.2°
+5°
1 November – 10 November
at normal
53.2°
—
October records over 66 years
93°6 October 1963All-time high
15.8°29 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Rose Hill (7 mi).
Tue, 1379° / 59°0
79 °
Spring Valley, Tuesday, 13 October
Light rain. High 79°, low 59°.
Pressure29.91 inHg
Wind1.2 mph NW
Humidity68%
Visibility6.2 mi
Dew point59°
Wed, 1466° / 56°1.01
66 °
Spring Valley, Wednesday, 14 October
Heavy rain. High 66°, low 56°.
Pressure30.12 inHg
Wind7.6 mph NE
Humidity70%
Visibility6.2 mi
Dew point52°
Thu, 1562° / 59°0.18
62 °
Spring Valley, Thursday, 15 October
Rain. High 62°, low 59°.
Pressure30.06 inHg
Wind6.8 mph NE
Humidity84%
Visibility6.2 mi
Dew point56°
Fri, 1657° / 47°0
57 °
Spring Valley, Friday, 16 October
Clear. High 57°, low 47°.
Pressure30.50 inHg
Wind17.4 mph N
Humidity50%
Visibility6.2 mi
Dew point36°
Sat, 1760° / 38°0
60 °
Spring Valley, Saturday, 17 October
Clear. High 60°, low 38°.
Pressure30.47 inHg
Wind10.2 mph SW
Humidity41%
Visibility—
Dew point32°
Sun, 1862° / 41°0
62 °
Spring Valley, Sunday, 18 October
Clear. High 62°, low 41°.
Pressure30.18 inHg
Wind17.1 mph SW
Humidity46%
Visibility—
Dew point37°
Mon, 1955° / 49°0.14
55 °
Spring Valley, Monday, 19 October
Light rain. High 55°, low 49°.
Pressure30.12 inHg
Wind11.8 mph S
Humidity96%
Visibility—
Dew point52°
Tue, 2060° / 55°0
60 °
Spring Valley, Tuesday, 20 October
Light rain. High 60°, low 55°.
Pressure30.18 inHg
Wind8.2 mph E
Humidity79%
Visibility—
Dew point53°
Wed, 2175° / 57°0.03
75 °
Spring Valley, Wednesday, 21 October
Light rain. High 75°, low 57°.
Pressure30.18 inHg
Wind13.3 mph SE
Humidity68%
Visibility—
Dew point60°
Thu, 2276° / 63°0.07
76 °
Spring Valley, Thursday, 22 October
Light rain. High 76°, low 63°.
Pressure30.18 inHg
Wind14 mph S
Humidity75%
Visibility—
Dew point61°
Fri, 2376° / 64°0.08
76 °
Spring Valley, Friday, 23 October
Light rain. High 76°, low 64°.
Pressure30.18 inHg
Wind13 mph SE
Humidity74%
Visibility—
Dew point65°
Sat, 2472° / 61°0.35
72 °
Spring Valley, Saturday, 24 October
Rain. High 72°, low 61°.
Pressure29.80 inHg
Wind21.6 mph SW
Humidity86%
Visibility—
Dew point64°
Sun, 2556° / 47°0
56 °
Spring Valley, Sunday, 25 October
Overcast. High 56°, low 47°.
Pressure30.09 inHg
Wind20.2 mph W
Humidity67%
Visibility—
Dew point43°
Mon, 2660° / 40°0
60 °
Spring Valley, Monday, 26 October
Clear. High 60°, low 40°.
Pressure30.24 inHg
Wind10.4 mph W
Humidity47%
Visibility—
Dew point35°
Tue, 2763° / 46°0
63 °
Spring Valley, Tuesday, 27 October
Clear. High 63°, low 46°.
Pressure29.94 inHg
Wind19.8 mph N
Humidity54%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2856° / 41°0.06
56 °
Spring Valley, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.06 in
Chance of precipitation22%
Record high77° (2016)
Record low17° (1967)
Thu, 2957° / 41°0.08
57 °
Spring Valley, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.08 in
Chance of precipitation25%
Record high81° (2024)
Record low16° (1980)
Fri, 3058° / 42°0.1
58 °
Spring Valley, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.1 in
Chance of precipitation35%
Record high76° (2024)
Record low18° (1980)
Sat, 3156° / 42°0.13
56 °
Spring Valley, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.13 in
Chance of precipitation33%
Record high76° (1968)
Record low22° (1993)
Sun, 0156° / 40°0.19
56 °
Spring Valley, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.19 in
Chance of precipitation37%
Record high75° (2000)
Record low22° (2023)
Mon, 0254° / 39°0.08
54 °
Spring Valley, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.08 in
Chance of precipitation35%
Record high75° (1964)
Record low16° (1991)
Tue, 0354° / 39°0.08
54 °
Spring Valley, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.08 in
Chance of precipitation25%
Record high75° (1978)
Record low11° (1991)
Wed, 0453° / 39°0.1
53 °
Spring Valley, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.1 in
Chance of precipitation23%
Record high71° (1978)
Record low10° (1991)
Thu, 0553° / 38°0.07
53 °
Spring Valley, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation27%
Record high71° (2015)
Record low20° (1991)
Fri, 0653° / 37°0.06
53 °
Spring Valley, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.06 in
Chance of precipitation22%
Record high71° (2020)
Record low17° (1991)
Sat, 0753° / 37°0.02
53 °
Spring Valley, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.02 in
Chance of precipitation12%
Record high72° (1966)
Record low1° (1991)
Sun, 0852° / 37°0.04
52 °
Spring Valley, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.04 in
Chance of precipitation25%
Record high77° (1999)
Record low-7° (1991)
Mon, 0953° / 37°0.09
53 °
Spring Valley, Monday, 9 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.09 in
Chance of precipitation33%
Record high74° (1999)
Record low12° (1991)
Tue, 1050° / 35°0.1
50 °
Spring Valley, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.1 in
Chance of precipitation25%
Record high74° (2012)
Record low15° (2018)
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, IA 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, IA 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.