Monthly outlook for Winthrop, IA: average high 59.3°, average low 47.1°. That is 1.3° above the climate normal for October. Precipitation is expected on 4 days (about 4.2 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 13 October (72.2°), the coolest 17 October (34.5°).
59.3°/47.1°
Average high / low
+1.3°
Above normal
4 / 4
Wet days / normal
4.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
61.7°
58.3°
+1.9°
23 October – 1 November
55.4°
54.2°
+0.7°
2 November – 11 November
at normal
48.8°
—
October records over 66 years
86.4°1 October 1976All-time high
21°19 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Aurora (10 mi).
Wed, 1468° / 50°0
68 °
Winthrop, Wednesday, 14 October
Clear. High 68°, low 50°.
Pressure30.15 inHg
Wind7.9 mph NE
Humidity63%
Visibility6.2 mi
Dew point49°
Thu, 1558° / 52°1.31
58 °
Winthrop, Thursday, 15 October
Heavy rain. High 58°, low 52°.
Pressure29.97 inHg
Wind9.9 mph E
Humidity94%
Visibility2.0 mi
Dew point55°
Fri, 1652° / 44°0
52 °
Winthrop, Friday, 16 October
Overcast. High 52°, low 44°.
Pressure30.33 inHg
Wind25.4 mph N
Humidity59%
Visibility6.2 mi
Dew point37°
Sat, 1756° / 35°0
56 °
Winthrop, Saturday, 17 October
Clear. High 56°, low 35°.
Pressure30.45 inHg
Wind13.7 mph SW
Humidity44%
Visibility—
Dew point31°
Sun, 1862° / 44°0
62 °
Winthrop, Sunday, 18 October
Overcast. High 62°, low 44°.
Pressure30.15 inHg
Wind15.3 mph SW
Humidity52%
Visibility—
Dew point40°
Mon, 1960° / 49°0
60 °
Winthrop, Monday, 19 October
Overcast. High 60°, low 49°.
Pressure30.18 inHg
Wind9.2 mph SW
Humidity41%
Visibility—
Dew point34°
Tue, 2058° / 48°0
58 °
Winthrop, Tuesday, 20 October
Overcast. High 58°, low 48°.
Pressure30.21 inHg
Wind10.8 mph S
Humidity80%
Visibility—
Dew point51°
Wed, 2163° / 56°0.05
63 °
Winthrop, Wednesday, 21 October
Light rain. High 63°, low 56°.
Pressure30.12 inHg
Wind12.4 mph S
Humidity97%
Visibility—
Dew point60°
Thu, 2266° / 64°2.11
66 °
Winthrop, Thursday, 22 October
Heavy rain. High 66°, low 64°.
Pressure29.85 inHg
Wind13.6 mph S
Humidity97%
Visibility—
Dew point64°
Fri, 2366° / 49°0.73
66 °
Winthrop, Friday, 23 October
Rain. High 66°, low 49°.
Pressure29.83 inHg
Wind25.9 mph S
Humidity75%
Visibility—
Dew point54°
Sat, 2455° / 42°0
55 °
Winthrop, Saturday, 24 October
Clear. High 55°, low 42°.
Pressure30.33 inHg
Wind13.8 mph W
Humidity59%
Visibility—
Dew point39°
Sun, 2557° / 41°0
57 °
Winthrop, Sunday, 25 October
Clear. High 57°, low 41°.
Pressure30.21 inHg
Wind14.2 mph NW
Humidity50%
Visibility—
Dew point36°
Mon, 2650° / 40°0
50 °
Winthrop, Monday, 26 October
Mostly clear. High 50°, low 40°.
Pressure30.27 inHg
Wind18.5 mph NW
Humidity57%
Visibility—
Dew point33°
Tue, 2748° / 36°0
48 °
Winthrop, Tuesday, 27 October
Overcast. High 48°, low 36°.
Pressure30.24 inHg
Wind12.5 mph S
Humidity66%
Visibility—
Dew point34°
Wed, 2856° / 45°0.02
56 °
Winthrop, Wednesday, 28 October
Light rain. High 56°, low 45°.
Pressure29.91 inHg
Wind18 mph S
Humidity71%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2954° / 38°0.1
54 °
Winthrop, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.1 in
Chance of precipitation30%
Record high79° (2024)
Record low22° (1980)
Fri, 3055° / 39°0.09
55 °
Winthrop, Friday, 30 October
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.09 in
Chance of precipitation28%
Record high75° (2024)
Record low21° (1988)
Sat, 3153° / 39°0.12
53 °
Winthrop, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.12 in
Chance of precipitation33%
Record high72° (1968)
Record low23° (1993)
Sun, 0152° / 37°0.21
52 °
Winthrop, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.21 in
Chance of precipitation35%
Record high74° (2000)
Record low21° (2023)
Mon, 0251° / 37°0.09
51 °
Winthrop, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation33%
Record high70° (2015)
Record low15° (1991)
Tue, 0351° / 36°0.06
51 °
Winthrop, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.06 in
Chance of precipitation20%
Record high71° (1987)
Record low12° (1991)
Wed, 0450° / 37°0.11
50 °
Winthrop, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation25%
Record high70° (2008)
Record low9° (1991)
Thu, 0549° / 35°0.08
49 °
Winthrop, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.08 in
Chance of precipitation28%
Record high67° (2015)
Record low17° (1991)
Fri, 0649° / 35°0.06
49 °
Winthrop, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.06 in
Chance of precipitation30%
Record high68° (2020)
Record low13° (1991)
Sat, 0749° / 33°0.02
49 °
Winthrop, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.02 in
Chance of precipitation10%
Record high69° (2001)
Record low-6° (1991)
Sun, 0849° / 34°0.04
49 °
Winthrop, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.04 in
Chance of precipitation20%
Record high75° (1999)
Record low4° (1991)
Mon, 0948° / 34°0.09
48 °
Winthrop, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.09 in
Chance of precipitation33%
Record high72° (1999)
Record low15° (1991)
Tue, 1047° / 32°0.1
47 °
Winthrop, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.1 in
Chance of precipitation35%
Record high72° (2012)
Record low11° (2018)
Wed, 1145° / 30°0.08
45 °
Winthrop, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.08 in
Chance of precipitation27%
Record high68° (1964)
Record low10° (1986)
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 Winthrop, 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 Winthrop, 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.