Monthly outlook for Yarmouth, IA: average high 65.8°, average low 50.9°. That is 2.3° 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 12 October (86.7°), the coolest 24 October (35.9°).
65.8°/50.9°
Average high / low
+2.3°
Above normal
5 / 4
Wet days / normal
2.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
71°
62.9°
+4.5°
21 October – 30 October
57.2°
59°
-1°
31 October – 9 November
at normal
54.2°
—
October records over 66 years
91.4°6 October 1963All-time high
21.6°29 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Mediapolis (8 mi).
Mon, 1287° / 66°0
87 °
Yarmouth, Monday, 12 October
Clear. High 87°, low 66°.
Pressure29.83 inHg
Wind13.7 mph SW
Humidity57%
Visibility6.2 mi
Dew point64°
Tue, 1381° / 64°0.04
81 °
Yarmouth, Tuesday, 13 October
Light rain. High 81°, low 64°.
Pressure29.88 inHg
Wind3.7 mph NW
Humidity65%
Visibility6.2 mi
Dew point63°
Wed, 1474° / 62°0.13
74 °
Yarmouth, Wednesday, 14 October
Light rain. High 74°, low 62°.
Pressure30.06 inHg
Wind7.8 mph NE
Humidity70%
Visibility6.2 mi
Dew point59°
Thu, 1567° / 60°0.93
67 °
Yarmouth, Thursday, 15 October
Rain. High 67°, low 60°.
Pressure30.00 inHg
Wind6 mph E
Humidity94%
Visibility3.2 mi
Dew point62°
Fri, 1658° / 47°0
58 °
Yarmouth, Friday, 16 October
Mostly clear. High 58°, low 47°.
Pressure30.50 inHg
Wind18.1 mph N
Humidity47%
Visibility—
Dew point36°
Sat, 1757° / 39°0
57 °
Yarmouth, Saturday, 17 October
Clear. High 57°, low 39°.
Pressure30.50 inHg
Wind9.6 mph S
Humidity41%
Visibility—
Dew point31°
Sun, 1863° / 40°0
63 °
Yarmouth, Sunday, 18 October
Clear. High 63°, low 40°.
Pressure30.33 inHg
Wind17.9 mph SW
Humidity38%
Visibility—
Dew point31°
Mon, 1969° / 46°0
69 °
Yarmouth, Monday, 19 October
Partly cloudy. High 69°, low 46°.
Pressure30.24 inHg
Wind14 mph S
Humidity38%
Visibility—
Dew point38°
Tue, 2071° / 55°0.01
71 °
Yarmouth, Tuesday, 20 October
Light rain. High 71°, low 55°.
Pressure30.09 inHg
Wind13.2 mph S
Humidity59%
Visibility—
Dew point51°
Wed, 2168° / 61°1.21
68 °
Yarmouth, Wednesday, 21 October
Heavy rain. High 68°, low 61°.
Pressure29.91 inHg
Wind20 mph S
Humidity82%
Visibility—
Dew point62°
Thu, 2267° / 51°0.52
67 °
Yarmouth, Thursday, 22 October
Rain. High 67°, low 51°.
Pressure29.88 inHg
Wind19.4 mph SW
Humidity53%
Visibility—
Dew point40°
Fri, 2349° / 41°0
49 °
Yarmouth, Friday, 23 October
Clear. High 49°, low 41°.
Pressure30.12 inHg
Wind17.9 mph NW
Humidity54%
Visibility—
Dew point32°
Sat, 2454° / 36°0
54 °
Yarmouth, Saturday, 24 October
Overcast. High 54°, low 36°.
Pressure30.12 inHg
Wind13.1 mph SE
Humidity50%
Visibility—
Dew point31°
Sun, 2551° / 46°0.07
51 °
Yarmouth, Sunday, 25 October
Light rain. High 51°, low 46°.
Pressure29.74 inHg
Wind13.4 mph SE
Humidity72%
Visibility—
Dew point40°
Mon, 2654° / 44°0.01
54 °
Yarmouth, Monday, 26 October
Light rain. High 54°, low 44°.
Pressure30.03 inHg
Wind8.4 mph NW
Humidity72%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2757° / 42°0.07
57 °
Yarmouth, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.07 in
Chance of precipitation15%
Record high75° (2014)
Record low26° (1997)
Wed, 2857° / 42°0.04
57 °
Yarmouth, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.04 in
Chance of precipitation18%
Record high76° (2016)
Record low25° (1967)
Thu, 2958° / 42°0.06
58 °
Yarmouth, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high58°
Average low42°
Average precipitation0.06 in
Chance of precipitation23%
Record high79° (2024)
Record low22° (1980)
Fri, 3058° / 43°0.1
58 °
Yarmouth, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.1 in
Chance of precipitation37%
Record high77° (2024)
Record low25° (1988)
Sat, 3157° / 43°0.15
57 °
Yarmouth, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.15 in
Chance of precipitation33%
Record high75° (1968)
Record low25° (1993)
Sun, 0156° / 42°0.18
56 °
Yarmouth, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high56°
Average low42°
Average precipitation0.18 in
Chance of precipitation30%
Record high77° (2016)
Record low23° (2023)
Mon, 0255° / 40°0.08
55 °
Yarmouth, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.08 in
Chance of precipitation32%
Record high72° (1987)
Record low19° (1991)
Tue, 0354° / 40°0.07
54 °
Yarmouth, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.07 in
Chance of precipitation27%
Record high73° (1978)
Record low14° (1991)
Wed, 0454° / 40°0.11
54 °
Yarmouth, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.11 in
Chance of precipitation23%
Record high73° (2022)
Record low13° (1991)
Thu, 0553° / 39°0.1
53 °
Yarmouth, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.1 in
Chance of precipitation23%
Record high73° (1978)
Record low21° (1991)
Fri, 0653° / 38°0.07
53 °
Yarmouth, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation25%
Record high71° (2020)
Record low20° (1991)
Sat, 0753° / 38°0.02
53 °
Yarmouth, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.02 in
Chance of precipitation15%
Record high71° (1966)
Record low7° (1991)
Sun, 0853° / 38°0.05
53 °
Yarmouth, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.05 in
Chance of precipitation23%
Record high77° (1999)
Record low3° (1991)
Mon, 0953° / 38°0.12
53 °
Yarmouth, Monday, 9 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.12 in
Chance of precipitation30%
Record high74° (1999)
Record low7° (1991)
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 Yarmouth, 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 Yarmouth, 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.