Monthly outlook for Marsh, IA: average high 71.8°, average low 53.4°. That is 4.7° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 15 October (86°), the coolest 23 October (41.9°).
71.8°/53.4°
Average high / low
+4.7°
Above normal
4 / 4
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
75.2°
64.5°
+5.9°
18 October – 27 October
66°
59.9°
+3.4°
28 October – 6 November
at normal
55.5°
—
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 (12 mi).
Fri, 0983° / 53°0.09
83 °
Marsh, Friday, 9 October
Rain. High 83°, low 53°.
Pressure30.06 inHg
Wind6.3 mph SE
Humidity63%
Visibility6.2 mi
Dew point57°
Sat, 1078° / 62°0
78 °
Marsh, Saturday, 10 October
Overcast. High 78°, low 62°.
Pressure30.03 inHg
Wind8.5 mph S
Humidity60%
Visibility6.2 mi
Dew point60°
Sun, 1178° / 56°0
78 °
Marsh, Sunday, 11 October
Clear. High 78°, low 56°.
Pressure29.94 inHg
Wind5 mph S
Humidity58%
Visibility6.2 mi
Dew point57°
Mon, 1284° / 65°0
84 °
Marsh, Monday, 12 October
Partly cloudy. High 84°, low 65°.
Pressure29.83 inHg
Wind11.3 mph SW
Humidity56%
Visibility6.2 mi
Dew point62°
Tue, 1374° / 63°0.06
74 °
Marsh, Tuesday, 13 October
Light rain. High 74°, low 63°.
Pressure29.88 inHg
Wind9.9 mph NE
Humidity76%
Visibility—
Dew point65°
Wed, 1470° / 57°0.38
70 °
Marsh, Wednesday, 14 October
Rain. High 70°, low 57°.
Pressure29.91 inHg
Wind15.2 mph SE
Humidity84%
Visibility—
Dew point56°
Thu, 1586° / 69°0.03
86 °
Marsh, Thursday, 15 October
Light rain. High 86°, low 69°.
Pressure29.80 inHg
Wind19.8 mph SW
Humidity56%
Visibility—
Dew point67°
Fri, 1670° / 49°0
70 °
Marsh, Friday, 16 October
Overcast. High 70°, low 49°.
Pressure30.30 inHg
Wind15.7 mph NW
Humidity61%
Visibility—
Dew point44°
Sat, 1754° / 43°0
54 °
Marsh, Saturday, 17 October
Overcast. High 54°, low 43°.
Pressure30.65 inHg
Wind12 mph NE
Humidity53%
Visibility—
Dew point35°
Sun, 1858° / 42°0
58 °
Marsh, Sunday, 18 October
Overcast. High 58°, low 42°.
Pressure30.45 inHg
Wind8.7 mph SE
Humidity43%
Visibility—
Dew point32°
Mon, 1974° / 49°0
74 °
Marsh, Monday, 19 October
Overcast. High 74°, low 49°.
Pressure30.12 inHg
Wind14.5 mph SW
Humidity50%
Visibility—
Dew point47°
Tue, 2074° / 54°0
74 °
Marsh, Tuesday, 20 October
Partly cloudy. High 74°, low 54°.
Pressure30.12 inHg
Wind9.4 mph W
Humidity48%
Visibility—
Dew point49°
Wed, 2170° / 52°0
70 °
Marsh, Wednesday, 21 October
Clear. High 70°, low 52°.
Pressure30.09 inHg
Wind7.1 mph NW
Humidity36%
Visibility—
Dew point38°
Thu, 2260° / 49°0.12
60 °
Marsh, Thursday, 22 October
Light rain. High 60°, low 49°.
Pressure29.97 inHg
Wind20.2 mph W
Humidity43%
Visibility—
Dew point36°
Fri, 2360° / 42°0
60 °
Marsh, Friday, 23 October
Clear. High 60°, low 42°.
Pressure30.15 inHg
Wind13.4 mph SE
Humidity47%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2459° / 45°0.14
59 °
Marsh, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high59°
Average low45°
Average precipitation0.14 in
Chance of precipitation32%
Record high81° (1963)
Record low25° (1981)
Sun, 2558° / 44°0.08
58 °
Marsh, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high58°
Average low44°
Average precipitation0.08 in
Chance of precipitation28%
Record high77° (2011)
Record low30° (2013)
Mon, 2658° / 43°0.11
58 °
Marsh, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.11 in
Chance of precipitation25%
Record high82° (1963)
Record low25° (1962)
Tue, 2757° / 42°0.07
57 °
Marsh, 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 °
Marsh, 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 °
Marsh, 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 °
Marsh, 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 °
Marsh, 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 °
Marsh, 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 °
Marsh, 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 °
Marsh, 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 °
Marsh, 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 °
Marsh, 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 °
Marsh, 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)
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 Marsh, 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 Marsh, 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.