Monthly outlook for Cou Falls, IA: average high 62.2°, average low 46.1°. That is 2.2° above the climate normal for October. Precipitation is expected on 5 days (about 2.9 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 24 October (73.3°), the coolest 27 October (34.7°).
62.2°/46.1°
Average high / low
+2.2°
Above normal
5 / 4
Wet days / normal
2.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
64.4°
59.6°
+2.7°
27 October – 5 November
58.6°
55°
+2°
6 November – 15 November
at normal
49.5°
—
October records over 66 years
91.4°3 October 2006All-time high
17.8°30 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Tiffin (8 mi).
Sun, 1862° / 42°0
62 °
Cou Falls, Sunday, 18 October
Clear. High 62°, low 42°.
Pressure30.36 inHg
Wind12.8 mph S
Humidity59%
Visibility6.2 mi
Dew point43°
Mon, 1964° / 43°0
64 °
Cou Falls, Monday, 19 October
Overcast. High 64°, low 43°.
Pressure30.36 inHg
Wind5.8 mph S
Humidity63%
Visibility6.2 mi
Dew point46°
Tue, 2067° / 46°0
67 °
Cou Falls, Tuesday, 20 October
Clear. High 67°, low 46°.
Pressure30.36 inHg
Wind5.5 mph SE
Humidity59%
Visibility6.2 mi
Dew point48°
Wed, 2169° / 49°0
69 °
Cou Falls, Wednesday, 21 October
Clear. High 69°, low 49°.
Pressure30.24 inHg
Wind6.2 mph S
Humidity54%
Visibility—
Dew point47°
Thu, 2270° / 49°0.01
70 °
Cou Falls, Thursday, 22 October
Light rain. High 70°, low 49°.
Pressure30.21 inHg
Wind5 mph SE
Humidity53%
Visibility—
Dew point49°
Fri, 2372° / 54°0
72 °
Cou Falls, Friday, 23 October
Overcast. High 72°, low 54°.
Pressure30.12 inHg
Wind14.2 mph S
Humidity45%
Visibility—
Dew point46°
Sat, 2473° / 58°0
73 °
Cou Falls, Saturday, 24 October
Overcast. High 73°, low 58°.
Pressure30.06 inHg
Wind14.6 mph S
Humidity40%
Visibility—
Dew point44°
Sun, 2564° / 47°0.48
64 °
Cou Falls, Sunday, 25 October
Rain. High 64°, low 47°.
Pressure30.00 inHg
Wind13.3 mph N
Humidity86%
Visibility—
Dew point54°
Mon, 2648° / 39°0.19
48 °
Cou Falls, Monday, 26 October
Rain. High 48°, low 39°.
Pressure30.24 inHg
Wind14.7 mph N
Humidity57%
Visibility—
Dew point31°
Tue, 2750° / 35°0
50 °
Cou Falls, Tuesday, 27 October
Overcast. High 50°, low 35°.
Pressure30.39 inHg
Wind12.6 mph SE
Humidity52%
Visibility—
Dew point29°
Wed, 2859° / 43°1.45
59 °
Cou Falls, Wednesday, 28 October
Heavy rain. High 59°, low 43°.
Pressure29.91 inHg
Wind18.9 mph S
Humidity97%
Visibility—
Dew point45°
Thu, 2959° / 49°0
59 °
Cou Falls, Thursday, 29 October
Clear. High 59°, low 49°.
Pressure30.06 inHg
Wind25.7 mph W
Humidity59%
Visibility—
Dew point42°
Fri, 3061° / 46°0.07
61 °
Cou Falls, Friday, 30 October
Light rain. High 61°, low 46°.
Pressure29.91 inHg
Wind18.3 mph S
Humidity61%
Visibility—
Dew point44°
Sat, 3169° / 56°0.73
69 °
Cou Falls, Saturday, 31 October
Rain. High 69°, low 56°.
Pressure29.44 inHg
Wind24.4 mph S
Humidity95%
Visibility—
Dew point63°
Sun, 0154° / 46°0
54 °
Cou Falls, Sunday, 1 November
Overcast. High 54°, low 46°.
Pressure29.97 inHg
Wind17.7 mph W
Humidity60%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0254° / 39°0.09
54 °
Cou Falls, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.09 in
Chance of precipitation35%
Record high73° (2022)
Record low17° (1991)
Tue, 0354° / 38°0.06
54 °
Cou Falls, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.06 in
Chance of precipitation22%
Record high73° (1978)
Record low13° (1991)
Wed, 0453° / 39°0.1
53 °
Cou Falls, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.1 in
Chance of precipitation25%
Record high70° (2008)
Record low11° (1991)
Thu, 0552° / 38°0.08
52 °
Cou Falls, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.08 in
Chance of precipitation27%
Record high70° (2015)
Record low19° (1991)
Fri, 0653° / 37°0.06
53 °
Cou Falls, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low37°
Average precipitation0.06 in
Chance of precipitation23%
Record high71° (2020)
Record low18° (1991)
Sat, 0752° / 36°0.02
52 °
Cou Falls, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.02 in
Chance of precipitation13%
Record high71° (1966)
Record low6° (1991)
Sun, 0852° / 36°0.04
52 °
Cou Falls, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high52°
Average low36°
Average precipitation0.04 in
Chance of precipitation18%
Record high77° (1999)
Record low2° (1991)
Mon, 0952° / 37°0.1
52 °
Cou Falls, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.1 in
Chance of precipitation33%
Record high74° (1999)
Record low16° (1991)
Tue, 1050° / 35°0.09
50 °
Cou Falls, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low35°
Average precipitation0.09 in
Chance of precipitation22%
Record high73° (2012)
Record low14° (2018)
Wed, 1148° / 33°0.07
48 °
Cou Falls, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.07 in
Chance of precipitation25%
Record high73° (1964)
Record low13° (2019)
Thu, 1246° / 32°0.07
46 °
Cou Falls, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.07 in
Chance of precipitation27%
Record high68° (1964)
Record low6° (2019)
Fri, 1347° / 32°0.07
47 °
Cou Falls, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.07 in
Chance of precipitation32%
Record high75° (1999)
Record low6° (1986)
Sat, 1448° / 33°0.04
48 °
Cou Falls, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.04 in
Chance of precipitation20%
Record high70° (2025)
Record low15° (1986)
Sun, 1548° / 33°0.06
48 °
Cou Falls, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation27%
Record high69° (2001)
Record low9° (1972)
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 Cou Falls, 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 Cou Falls, 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.