Monthly outlook for Spring Valley, IA: average high 66.9°, average low 51.4°. That is 3.2° above the climate normal for October. Precipitation is expected on 5 days (about 2.1 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 12 October (88.8°), the coolest 18 October (39.1°).
66.9°/51.4°
Average high / low
+3.2°
Above normal
5 / 4
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
68.6°
62.4°
+3.4°
22 October – 31 October
64.1°
58.2°
+3.3°
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° / 60°0
79 °
Spring Valley, Tuesday, 13 October
Light rain. High 79°, low 60°.
Pressure29.91 inHg
Wind3.1 mph N
Humidity62%
Visibility6.2 mi
Dew point56°
Wed, 1467° / 57°0.83
67 °
Spring Valley, Wednesday, 14 October
Heavy rain. High 67°, low 57°.
Pressure30.12 inHg
Wind8.1 mph NE
Humidity62%
Visibility6.2 mi
Dew point51°
Thu, 1562° / 58°0.3
62 °
Spring Valley, Thursday, 15 October
Rain. High 62°, low 58°.
Pressure30.09 inHg
Wind8.4 mph NE
Humidity92%
Visibility4.4 mi
Dew point57°
Fri, 1658° / 46°0
58 °
Spring Valley, Friday, 16 October
Clear. High 58°, low 46°.
Pressure30.53 inHg
Wind18.8 mph NW
Humidity47%
Visibility—
Dew point35°
Sat, 1759° / 40°0
59 °
Spring Valley, Saturday, 17 October
Clear. High 59°, low 40°.
Pressure30.42 inHg
Wind10.6 mph S
Humidity44%
Visibility—
Dew point34°
Sun, 1861° / 39°0
61 °
Spring Valley, Sunday, 18 October
Clear. High 61°, low 39°.
Pressure30.18 inHg
Wind16.7 mph SW
Humidity51%
Visibility—
Dew point38°
Mon, 1964° / 46°0
64 °
Spring Valley, Monday, 19 October
Overcast. High 64°, low 46°.
Pressure30.15 inHg
Wind11 mph S
Humidity52%
Visibility—
Dew point42°
Tue, 2072° / 52°0
72 °
Spring Valley, Tuesday, 20 October
Clear. High 72°, low 52°.
Pressure30.18 inHg
Wind10.6 mph S
Humidity65%
Visibility—
Dew point55°
Wed, 2174° / 57°0
74 °
Spring Valley, Wednesday, 21 October
Clear. High 74°, low 57°.
Pressure30.24 inHg
Wind13.1 mph SE
Humidity64%
Visibility—
Dew point57°
Thu, 2276° / 59°0
76 °
Spring Valley, Thursday, 22 October
Overcast. High 76°, low 59°.
Pressure30.15 inHg
Wind14 mph S
Humidity63%
Visibility—
Dew point57°
Fri, 2366° / 51°0.38
66 °
Spring Valley, Friday, 23 October
Rain. High 66°, low 51°.
Pressure30.33 inHg
Wind14.3 mph N
Humidity45%
Visibility—
Dew point43°
Sat, 2460° / 44°0.33
60 °
Spring Valley, Saturday, 24 October
Rain. High 60°, low 44°.
Pressure30.27 inHg
Wind15.1 mph SE
Humidity55%
Visibility—
Dew point41°
Sun, 2563° / 54°0.22
63 °
Spring Valley, Sunday, 25 October
Light rain. High 63°, low 54°.
Pressure29.71 inHg
Wind18.8 mph NW
Humidity87%
Visibility—
Dew point53°
Mon, 2659° / 46°0
59 °
Spring Valley, Monday, 26 October
Clear. High 59°, low 46°.
Pressure30.15 inHg
Wind15.1 mph N
Humidity61%
Visibility—
Dew point42°
Tue, 2762° / 44°0
62 °
Spring Valley, Tuesday, 27 October
Clear. High 62°, low 44°.
Pressure30.12 inHg
Wind5.6 mph SW
Humidity54%
Visibility—
Dew point40°
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.