Monthly outlook for Mount Union, IA: average high 67.5°, average low 51.9°. That is 3.2° above the climate normal for October. Precipitation is expected on 5 days (about 2.1 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 12 October (86.2°), the coolest 17 October (31.7°).
67.5°/51.9°
Average high / low
+3.2°
Above normal
5 / 4
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
67.5°
62.9°
+2.6°
21 October – 30 October
67.5°
59°
+4.7°
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 (12 mi).
Mon, 1286° / 64°0
86 °
Mount Union, Monday, 12 October
Partly cloudy. High 86°, low 64°.
Pressure29.83 inHg
Wind14 mph SW
Humidity59%
Visibility6.2 mi
Dew point65°
Tue, 1380° / 69°0.08
80 °
Mount Union, Tuesday, 13 October
Rain. High 80°, low 69°.
Pressure29.88 inHg
Wind3.5 mph W
Humidity68%
Visibility6.2 mi
Dew point65°
Wed, 1472° / 62°0.06
72 °
Mount Union, Wednesday, 14 October
Light rain. High 72°, low 62°.
Pressure30.06 inHg
Wind9.3 mph NE
Humidity67%
Visibility6.2 mi
Dew point58°
Thu, 1563° / 58°1.38
63 °
Mount Union, Thursday, 15 October
Heavy rain. High 63°, low 58°.
Pressure30.06 inHg
Wind8.4 mph E
Humidity95%
Visibility2.9 mi
Dew point59°
Fri, 1661° / 48°0.03
61 °
Mount Union, Friday, 16 October
Light rain. High 61°, low 48°.
Pressure30.45 inHg
Wind16.9 mph N
Humidity50%
Visibility—
Dew point39°
Sat, 1746° / 32°0
46 °
Mount Union, Saturday, 17 October
Clear. High 46°, low 32°.
Pressure30.62 inHg
Wind9.4 mph N
Humidity31%
Visibility—
Dew point13°
Sun, 1856° / 33°0
56 °
Mount Union, Sunday, 18 October
Mostly clear. High 56°, low 33°.
Pressure30.39 inHg
Wind20.5 mph S
Humidity33%
Visibility—
Dew point21°
Mon, 1963° / 43°0
63 °
Mount Union, Monday, 19 October
Overcast. High 63°, low 43°.
Pressure30.30 inHg
Wind14.1 mph SW
Humidity44%
Visibility—
Dew point35°
Tue, 2066° / 45°0
66 °
Mount Union, Tuesday, 20 October
Partly cloudy. High 66°, low 45°.
Pressure30.27 inHg
Wind11.9 mph S
Humidity35%
Visibility—
Dew point33°
Wed, 2166° / 53°0.02
66 °
Mount Union, Wednesday, 21 October
Light rain. High 66°, low 53°.
Pressure30.15 inHg
Wind14.1 mph S
Humidity37%
Visibility—
Dew point37°
Thu, 2272° / 58°0
72 °
Mount Union, Thursday, 22 October
Light rain. High 72°, low 58°.
Pressure30.18 inHg
Wind9 mph S
Humidity51%
Visibility—
Dew point50°
Fri, 2374° / 58°0.22
74 °
Mount Union, Friday, 23 October
Rain. High 74°, low 58°.
Pressure30.12 inHg
Wind10.1 mph SW
Humidity58%
Visibility—
Dew point54°
Sat, 2467° / 58°0.02
67 °
Mount Union, Saturday, 24 October
Light rain. High 67°, low 58°.
Pressure30.15 inHg
Wind7.3 mph NE
Humidity75%
Visibility—
Dew point57°
Sun, 2574° / 52°0.27
74 °
Mount Union, Sunday, 25 October
Rain. High 74°, low 52°.
Pressure29.88 inHg
Wind18.3 mph NW
Humidity64%
Visibility—
Dew point59°
Mon, 2652° / 43°0
52 °
Mount Union, Monday, 26 October
Overcast. High 52°, low 43°.
Pressure29.94 inHg
Wind17.8 mph NW
Humidity55%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2757° / 42°0.07
57 °
Mount Union, 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 °
Mount Union, 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 °
Mount Union, 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 °
Mount Union, 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 °
Mount Union, 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 °
Mount Union, 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 °
Mount Union, 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 °
Mount Union, 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 °
Mount Union, 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 °
Mount Union, 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 °
Mount Union, 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 °
Mount Union, 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 °
Mount Union, 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 °
Mount Union, 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 Mount Union, 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 Mount Union, 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.