Monthly outlook for Marshalltown, IA: average high 60.2°, average low 42.2°. That is 1.8° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 22 October (70.3°), the coolest 28 October (27.1°).
60.2°/42.2°
Average high / low
+1.8°
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
62.4°
58.5°
+2.2°
29 October – 7 November
56.5°
53.6°
+1.6°
8 November – 17 November
at normal
48.1°
—
October records over 66 years
88.7°6 October 1963All-time high
16.7°30 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Ferguson (7 mi).
Tue, 2069° / 41°0
69 °
Marshalltown, Tuesday, 20 October
Clear. High 69°, low 41°.
Pressure30.33 inHg
Wind6.7 mph SE
Humidity55%
Visibility6.2 mi
Dew point47°
Wed, 2169° / 46°0
69 °
Marshalltown, Wednesday, 21 October
Clear. High 69°, low 46°.
Pressure30.24 inHg
Wind5.1 mph SW
Humidity62%
Visibility6.2 mi
Dew point52°
Thu, 2270° / 48°0
70 °
Marshalltown, Thursday, 22 October
Clear. High 70°, low 48°.
Pressure30.30 inHg
Wind5.1 mph SE
Humidity59%
Visibility6.2 mi
Dew point53°
Fri, 2368° / 51°0
68 °
Marshalltown, Friday, 23 October
Partly cloudy. High 68°, low 51°.
Pressure30.24 inHg
Wind11.7 mph SE
Humidity65%
Visibility6.2 mi
Dew point52°
Sat, 2468° / 52°0
68 °
Marshalltown, Saturday, 24 October
Overcast. High 68°, low 52°.
Pressure30.27 inHg
Wind12.5 mph SE
Humidity56%
Visibility—
Dew point47°
Sun, 2564° / 54°0
64 °
Marshalltown, Sunday, 25 October
Overcast. High 64°, low 54°.
Pressure30.33 inHg
Wind9 mph S
Humidity36%
Visibility—
Dew point33°
Mon, 2657° / 45°0
57 °
Marshalltown, Monday, 26 October
Partly cloudy. High 57°, low 45°.
Pressure30.39 inHg
Wind9.4 mph NE
Humidity34%
Visibility—
Dew point26°
Tue, 2748° / 35°0
48 °
Marshalltown, Tuesday, 27 October
Overcast. High 48°, low 35°.
Pressure30.47 inHg
Wind16.1 mph N
Humidity40%
Visibility—
Dew point24°
Wed, 2843° / 27°0
43 °
Marshalltown, Wednesday, 28 October
Clear. High 43°, low 27°.
Pressure30.59 inHg
Wind10.8 mph NW
Humidity33%
Visibility—
Dew point12°
Thu, 2949° / 28°0
49 °
Marshalltown, Thursday, 29 October
Clear. High 49°, low 28°.
Pressure30.45 inHg
Wind8.5 mph S
Humidity27%
Visibility—
Dew point12°
Fri, 3059° / 35°0
59 °
Marshalltown, Friday, 30 October
Clear. High 59°, low 35°.
Pressure30.09 inHg
Wind20 mph SW
Humidity40%
Visibility—
Dew point29°
Sat, 3163° / 43°0
63 °
Marshalltown, Saturday, 31 October
Partly cloudy. High 63°, low 43°.
Pressure29.97 inHg
Wind13.8 mph SW
Humidity55%
Visibility—
Dew point42°
Sun, 0160° / 50°0
60 °
Marshalltown, Sunday, 1 November
Overcast. High 60°, low 50°.
Pressure30.06 inHg
Wind10.6 mph NE
Humidity60%
Visibility—
Dew point45°
Mon, 0253° / 42°0
53 °
Marshalltown, Monday, 2 November
Overcast. High 53°, low 42°.
Pressure30.24 inHg
Wind8.8 mph NE
Humidity70%
Visibility—
Dew point41°
Tue, 0355° / 37°0
55 °
Marshalltown, Tuesday, 3 November
Overcast. High 55°, low 37°.
Pressure30.06 inHg
Wind15.2 mph SE
Humidity49%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0452° / 38°0.11
52 °
Marshalltown, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation22%
Record high70° (2008)
Record low9° (1991)
Thu, 0552° / 37°0.06
52 °
Marshalltown, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.06 in
Chance of precipitation27%
Record high71° (2015)
Record low20° (1967)
Fri, 0652° / 37°0.07
52 °
Marshalltown, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.07 in
Chance of precipitation18%
Record high70° (2001)
Record low15° (1991)
Sat, 0752° / 35°0.02
52 °
Marshalltown, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high52°
Average low35°
Average precipitation0.02 in
Chance of precipitation10%
Record high72° (2001)
Record low4° (1991)
Sun, 0851° / 35°0.04
51 °
Marshalltown, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.04 in
Chance of precipitation17%
Record high77° (1999)
Record low9° (1991)
Mon, 0951° / 36°0.09
51 °
Marshalltown, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.09 in
Chance of precipitation32%
Record high73° (1999)
Record low17° (1991)
Tue, 1048° / 33°0.1
48 °
Marshalltown, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.1 in
Chance of precipitation30%
Record high74° (2012)
Record low13° (2018)
Wed, 1147° / 32°0.09
47 °
Marshalltown, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.09 in
Chance of precipitation20%
Record high71° (1964)
Record low10° (2019)
Thu, 1246° / 31°0.06
46 °
Marshalltown, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.06 in
Chance of precipitation23%
Record high66° (2005)
Record low-2° (2019)
Fri, 1347° / 31°0.07
47 °
Marshalltown, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.07 in
Chance of precipitation28%
Record high75° (1999)
Record low6° (1986)
Sat, 1447° / 32°0.03
47 °
Marshalltown, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.03 in
Chance of precipitation20%
Record high71° (1964)
Record low15° (1986)
Sun, 1547° / 32°0.06
47 °
Marshalltown, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2001)
Record low4° (1972)
Mon, 1648° / 32°0.04
48 °
Marshalltown, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.04 in
Chance of precipitation25%
Record high69° (2001)
Record low13° (1997)
Tue, 1748° / 33°0.1
48 °
Marshalltown, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.1 in
Chance of precipitation28%
Record high72° (2016)
Record low11° (2005)
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 Marshalltown, 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 Marshalltown, 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.