Monthly outlook for Castana, IA: average high 61.8°, average low 44°. That is 2.2° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 22 October (72.8°), the coolest 28 October (25.5°).
61.8°/44°
Average high / low
+2.2°
Above normal
0 / 4
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
63.9°
59.7°
+2.3°
29 October – 7 November
58.3°
54.1°
+2.3°
8 November – 17 November
at normal
48.8°
—
October records over 66 years
90°1 October 2023All-time high
11.1°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Turin (5 mi).
Tue, 2071° / 45°0
71 °
Castana, Tuesday, 20 October
Clear. High 71°, low 45°.
Pressure30.24 inHg
Wind8.3 mph S
Humidity57%
Visibility6.2 mi
Dew point48°
Wed, 2171° / 49°0
71 °
Castana, Wednesday, 21 October
Clear. High 71°, low 49°.
Pressure30.21 inHg
Wind5.9 mph S
Humidity66%
Visibility6.2 mi
Dew point53°
Thu, 2273° / 53°0
73 °
Castana, Thursday, 22 October
Mostly clear. High 73°, low 53°.
Pressure30.24 inHg
Wind7.7 mph S
Humidity57%
Visibility6.2 mi
Dew point53°
Fri, 2372° / 57°0
72 °
Castana, Friday, 23 October
Overcast. High 72°, low 57°.
Pressure30.09 inHg
Wind14.3 mph SE
Humidity55%
Visibility6.2 mi
Dew point50°
Sat, 2471° / 61°0.02
71 °
Castana, Saturday, 24 October
Light rain. High 71°, low 61°.
Pressure30.12 inHg
Wind15.3 mph S
Humidity48%
Visibility—
Dew point48°
Sun, 2565° / 53°0
65 °
Castana, Sunday, 25 October
Overcast. High 65°, low 53°.
Pressure30.30 inHg
Wind11.9 mph S
Humidity31%
Visibility—
Dew point31°
Mon, 2658° / 43°0
58 °
Castana, Monday, 26 October
Overcast. High 58°, low 43°.
Pressure30.36 inHg
Wind9.6 mph NE
Humidity33%
Visibility—
Dew point26°
Tue, 2747° / 34°0
47 °
Castana, Tuesday, 27 October
Overcast. High 47°, low 34°.
Pressure30.56 inHg
Wind17.7 mph NE
Humidity63%
Visibility—
Dew point31°
Wed, 2843° / 26°0
43 °
Castana, Wednesday, 28 October
Clear. High 43°, low 26°.
Pressure30.65 inHg
Wind7.9 mph N
Humidity28%
Visibility—
Dew point8°
Thu, 2949° / 28°0
49 °
Castana, Thursday, 29 October
Clear. High 49°, low 28°.
Pressure30.42 inHg
Wind15.1 mph S
Humidity27%
Visibility—
Dew point12°
Fri, 3059° / 40°0
59 °
Castana, Friday, 30 October
Partly cloudy. High 59°, low 40°.
Pressure30.00 inHg
Wind16.7 mph S
Humidity51%
Visibility—
Dew point36°
Sat, 3165° / 44°0
65 °
Castana, Saturday, 31 October
Partly cloudy. High 65°, low 44°.
Pressure29.91 inHg
Wind10.1 mph S
Humidity57%
Visibility—
Dew point44°
Sun, 0159° / 49°0
59 °
Castana, Sunday, 1 November
Overcast. High 59°, low 49°.
Pressure30.12 inHg
Wind11.2 mph NE
Humidity41%
Visibility—
Dew point35°
Mon, 0256° / 38°0
56 °
Castana, Monday, 2 November
Mostly clear. High 56°, low 38°.
Pressure30.27 inHg
Wind7.6 mph NE
Humidity35%
Visibility—
Dew point24°
Tue, 0361° / 42°0
61 °
Castana, Tuesday, 3 November
Mostly clear. High 61°, low 42°.
Pressure29.88 inHg
Wind21 mph S
Humidity55%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0453° / 36°0.02
53 °
Castana, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.02 in
Chance of precipitation8%
Record high70° (1978)
Record low-14° (1991)
Thu, 0553° / 37°0.04
53 °
Castana, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.04 in
Chance of precipitation15%
Record high73° (2008)
Record low17° (1991)
Fri, 0653° / 36°0.03
53 °
Castana, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.03 in
Chance of precipitation12%
Record high73° (1980)
Record low10° (1991)
Sat, 0753° / 36°0.02
53 °
Castana, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low36°
Average precipitation0.02 in
Chance of precipitation10%
Record high74° (2001)
Record low-11° (1991)
Sun, 0852° / 36°0.05
52 °
Castana, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.05 in
Chance of precipitation18%
Record high78° (1999)
Record low-4° (1991)
Mon, 0951° / 35°0.14
51 °
Castana, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.14 in
Chance of precipitation28%
Record high74° (1999)
Record low16° (2018)
Tue, 1048° / 33°0.09
48 °
Castana, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.09 in
Chance of precipitation27%
Record high75° (2012)
Record low12° (2018)
Wed, 1147° / 30°0.07
47 °
Castana, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.07 in
Chance of precipitation17%
Record high69° (1964)
Record low6° (1986)
Thu, 1246° / 30°0.06
46 °
Castana, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low30°
Average precipitation0.06 in
Chance of precipitation22%
Record high70° (2005)
Record low2° (2019)
Fri, 1348° / 31°0.06
48 °
Castana, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.06 in
Chance of precipitation23%
Record high74° (1999)
Record low4° (1986)
Sat, 1448° / 33°0.02
48 °
Castana, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.02 in
Chance of precipitation15%
Record high73° (2025)
Record low10° (2014)
Sun, 1549° / 32°0.05
49 °
Castana, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.05 in
Chance of precipitation22%
Record high72° (2001)
Record low7° (2000)
Mon, 1649° / 31°0.07
49 °
Castana, Monday, 16 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.07 in
Chance of precipitation17%
Record high71° (2001)
Record low8° (2014)
Tue, 1748° / 32°0.07
48 °
Castana, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.07 in
Chance of precipitation22%
Record high67° (2001)
Record low8° (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 Castana, 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 Castana, 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.