Monthly outlook for Mount Union, IA: average high 66.1°, average low 52.2°. That is 2.7° above the climate normal for October. Precipitation is expected on 6 days (about 3.5 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 12 October (86.5°), the coolest 17 October (37.7°).
66.1°/52.2°
Average high / low
+2.7°
Above normal
6 / 4
Wet days / normal
3.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
68.6°
62.5°
+3.4°
22 October – 31 October
62°
58.4°
+2°
1 November – 10 November
at normal
53.6°
—
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).
Tue, 1382° / 64°0.07
82 °
Mount Union, Tuesday, 13 October
Light rain. High 82°, low 64°.
Pressure29.88 inHg
Wind2.1 mph N
Humidity64%
Visibility6.2 mi
Dew point61°
Wed, 1470° / 58°0.8
70 °
Mount Union, Wednesday, 14 October
Heavy rain. High 70°, low 58°.
Pressure30.09 inHg
Wind8.5 mph NE
Humidity66%
Visibility6.2 mi
Dew point56°
Thu, 1564° / 58°1.41
64 °
Mount Union, Thursday, 15 October
Heavy rain. High 64°, low 58°.
Pressure30.00 inHg
Wind9.1 mph NE
Humidity95%
Visibility2.0 mi
Dew point59°
Fri, 1657° / 46°0
57 °
Mount Union, Friday, 16 October
Light rain. High 57°, low 46°.
Pressure30.39 inHg
Wind19.4 mph N
Humidity47%
Visibility6.2 mi
Dew point36°
Sat, 1760° / 38°0
60 °
Mount Union, Saturday, 17 October
Clear. High 60°, low 38°.
Pressure30.47 inHg
Wind11.3 mph SW
Humidity38%
Visibility—
Dew point30°
Sun, 1863° / 44°0
63 °
Mount Union, Sunday, 18 October
Clear. High 63°, low 44°.
Pressure30.24 inHg
Wind15.2 mph S
Humidity47%
Visibility—
Dew point38°
Mon, 1962° / 46°0
62 °
Mount Union, Monday, 19 October
Overcast. High 62°, low 46°.
Pressure30.27 inHg
Wind8.1 mph S
Humidity48%
Visibility—
Dew point40°
Tue, 2067° / 52°0
67 °
Mount Union, Tuesday, 20 October
Partly cloudy. High 67°, low 52°.
Pressure30.24 inHg
Wind8.2 mph S
Humidity70%
Visibility—
Dew point55°
Wed, 2175° / 57°0
75 °
Mount Union, Wednesday, 21 October
Clear. High 75°, low 57°.
Pressure30.12 inHg
Wind13.2 mph S
Humidity61%
Visibility—
Dew point57°
Thu, 2274° / 64°0.08
74 °
Mount Union, Thursday, 22 October
Light rain. High 74°, low 64°.
Pressure30.03 inHg
Wind15.1 mph S
Humidity64%
Visibility—
Dew point58°
Fri, 2369° / 63°0.9
69 °
Mount Union, Friday, 23 October
Rain. High 69°, low 63°.
Pressure29.85 inHg
Wind19.6 mph SW
Humidity62%
Visibility—
Dew point55°
Sat, 2456° / 46°0.19
56 °
Mount Union, Saturday, 24 October
Rain. High 56°, low 46°.
Pressure29.85 inHg
Wind17.1 mph W
Humidity74%
Visibility—
Dew point43°
Sun, 2553° / 45°0
53 °
Mount Union, Sunday, 25 October
Overcast. High 53°, low 45°.
Pressure30.12 inHg
Wind11.5 mph NW
Humidity61%
Visibility—
Dew point37°
Mon, 2658° / 41°0
58 °
Mount Union, Monday, 26 October
Partly cloudy. High 58°, low 41°.
Pressure30.18 inHg
Wind7.4 mph SE
Humidity59%
Visibility—
Dew point40°
Tue, 2762° / 46°0.01
62 °
Mount Union, Tuesday, 27 October
Light rain. High 62°, low 46°.
Pressure29.91 inHg
Wind7.9 mph S
Humidity68%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 1051° / 36°0.1
51 °
Mount Union, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.1 in
Chance of precipitation30%
Record high74° (2022)
Record low15° (2018)
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.