Monthly outlook for Marion, IA: average high 62.1°, average low 45.9°. That is 2° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 22 October (74°), the coolest 17 October (34.7°).
62.1°/45.9°
Average high / low
+2°
Above normal
1 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
64.6°
59.7°
+2.7°
25 October – 3 November
58.1°
55.3°
+1.5°
4 November – 13 November
at normal
49.8°
—
October records over 66 years
90°3 October 2006All-time high
17.1°30 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Cedar Rapids (7 mi).
Fri, 1653° / 41°0
53 °
Marion, Friday, 16 October
Overcast. High 53°, low 41°.
Pressure30.24 inHg
Wind21.9 mph N
Humidity61%
Visibility6.2 mi
Dew point37°
Sat, 1756° / 35°0
56 °
Marion, Saturday, 17 October
Clear. High 56°, low 35°.
Pressure30.56 inHg
Wind8.6 mph SW
Humidity46%
Visibility6.2 mi
Dew point32°
Sun, 1861° / 42°0
61 °
Marion, Sunday, 18 October
Clear. High 61°, low 42°.
Pressure30.39 inHg
Wind12.4 mph S
Humidity54%
Visibility6.2 mi
Dew point39°
Mon, 1963° / 42°0
63 °
Marion, Monday, 19 October
Overcast. High 63°, low 42°.
Pressure30.33 inHg
Wind7.3 mph S
Humidity57%
Visibility—
Dew point44°
Tue, 2067° / 43°0
67 °
Marion, Tuesday, 20 October
Mostly clear. High 67°, low 43°.
Pressure30.30 inHg
Wind7.6 mph SE
Humidity53%
Visibility—
Dew point45°
Wed, 2171° / 52°0
71 °
Marion, Wednesday, 21 October
Overcast. High 71°, low 52°.
Pressure30.24 inHg
Wind13.7 mph S
Humidity63%
Visibility—
Dew point53°
Thu, 2274° / 59°0
74 °
Marion, Thursday, 22 October
Overcast. High 74°, low 59°.
Pressure30.09 inHg
Wind15.9 mph S
Humidity55%
Visibility—
Dew point53°
Fri, 2372° / 59°0
72 °
Marion, Friday, 23 October
Overcast. High 72°, low 59°.
Pressure29.85 inHg
Wind23.3 mph S
Humidity66%
Visibility—
Dew point59°
Sat, 2468° / 53°0
68 °
Marion, Saturday, 24 October
Clear. High 68°, low 53°.
Pressure30.18 inHg
Wind9.4 mph N
Humidity47%
Visibility—
Dew point44°
Sun, 2555° / 48°0
55 °
Marion, Sunday, 25 October
Overcast. High 55°, low 48°.
Pressure30.27 inHg
Wind14.8 mph N
Humidity50%
Visibility—
Dew point35°
Mon, 2657° / 39°0
57 °
Marion, Monday, 26 October
Clear. High 57°, low 39°.
Pressure30.06 inHg
Wind11.7 mph SW
Humidity50%
Visibility—
Dew point34°
Tue, 2758° / 42°0
58 °
Marion, Tuesday, 27 October
Clear. High 58°, low 42°.
Pressure30.15 inHg
Wind8.7 mph W
Humidity52%
Visibility—
Dew point38°
Wed, 2860° / 42°0
60 °
Marion, Wednesday, 28 October
Clear. High 60°, low 42°.
Pressure29.88 inHg
Wind12.4 mph SW
Humidity47%
Visibility—
Dew point37°
Thu, 2959° / 45°0
59 °
Marion, Thursday, 29 October
Clear. High 59°, low 45°.
Pressure30.06 inHg
Wind13.7 mph W
Humidity45%
Visibility—
Dew point36°
Fri, 3060° / 40°0
60 °
Marion, Friday, 30 October
Partly cloudy. High 60°, low 40°.
Pressure29.97 inHg
Wind19.5 mph S
Humidity47%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3155° / 41°0.13
55 °
Marion, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.13 in
Chance of precipitation30%
Record high75° (1968)
Record low24° (1993)
Sun, 0155° / 39°0.21
55 °
Marion, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.21 in
Chance of precipitation35%
Record high75° (2000)
Record low22° (2023)
Mon, 0253° / 38°0.11
53 °
Marion, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.11 in
Chance of precipitation33%
Record high72° (2022)
Record low17° (1991)
Tue, 0353° / 38°0.06
53 °
Marion, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.06 in
Chance of precipitation17%
Record high73° (1987)
Record low13° (1991)
Wed, 0452° / 38°0.11
52 °
Marion, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation25%
Record high70° (2008)
Record low10° (1991)
Thu, 0552° / 37°0.09
52 °
Marion, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (2015)
Record low18° (1991)
Fri, 0652° / 37°0.06
52 °
Marion, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.06 in
Chance of precipitation25%
Record high70° (2020)
Record low17° (1991)
Sat, 0751° / 35°0.02
51 °
Marion, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low35°
Average precipitation0.02 in
Chance of precipitation13%
Record high71° (1966)
Record low3° (1991)
Sun, 0851° / 36°0.04
51 °
Marion, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.04 in
Chance of precipitation18%
Record high77° (1999)
Record low8° (1991)
Mon, 0951° / 36°0.1
51 °
Marion, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.1 in
Chance of precipitation35%
Record high74° (1999)
Record low14° (1991)
Tue, 1049° / 34°0.1
49 °
Marion, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.1 in
Chance of precipitation30%
Record high73° (2012)
Record low14° (2018)
Wed, 1147° / 32°0.08
47 °
Marion, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.08 in
Chance of precipitation27%
Record high71° (1964)
Record low12° (1986)
Thu, 1246° / 31°0.07
46 °
Marion, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.07 in
Chance of precipitation27%
Record high67° (1964)
Record low6° (2019)
Fri, 1347° / 31°0.07
47 °
Marion, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.07 in
Chance of precipitation30%
Record high74° (1999)
Record low6° (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 Marion, 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 Marion, 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.