Monthly outlook for Monona, IA: average high 58.7°, average low 45.7°. That is 1° above the climate normal for October. Precipitation is expected on 6 days (about 2.7 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 12 October (86°), the coolest 24 October (30.5°).
58.7°/45.7°
Average high / low
+1°
Above normal
6 / 5
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
64.6°
58°
+3.7°
22 October – 31 October
48.8°
54.2°
-3°
1 November – 10 November
at normal
48.9°
—
October records over 66 years
86.2°1 October 1976All-time high
21.6°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Waterville (12 mi).
Tue, 1376° / 59°0.13
76 °
Monona, Tuesday, 13 October
Rain. High 76°, low 59°.
Pressure29.88 inHg
Wind9.1 mph NW
Humidity62%
Visibility6.2 mi
Dew point56°
Wed, 1465° / 52°0.08
65 °
Monona, Wednesday, 14 October
Rain. High 65°, low 52°.
Pressure30.12 inHg
Wind6.8 mph NE
Humidity64%
Visibility6.2 mi
Dew point50°
Thu, 1560° / 54°0.49
60 °
Monona, Thursday, 15 October
Heavy rain. High 60°, low 54°.
Pressure30.09 inHg
Wind5.7 mph E
Humidity84%
Visibility6.2 mi
Dew point54°
Fri, 1655° / 44°0
55 °
Monona, Friday, 16 October
Clear. High 55°, low 44°.
Pressure30.50 inHg
Wind19.7 mph N
Humidity48%
Visibility—
Dew point33°
Sat, 1754° / 37°0
54 °
Monona, Saturday, 17 October
Clear. High 54°, low 37°.
Pressure30.42 inHg
Wind13.9 mph SW
Humidity40%
Visibility—
Dew point28°
Sun, 1858° / 39°0
58 °
Monona, Sunday, 18 October
Clear. High 58°, low 39°.
Pressure30.18 inHg
Wind21 mph SW
Humidity51%
Visibility—
Dew point36°
Mon, 1961° / 44°0.01
61 °
Monona, Monday, 19 October
Light rain. High 61°, low 44°.
Pressure30.18 inHg
Wind13.4 mph SW
Humidity50%
Visibility—
Dew point40°
Tue, 2068° / 49°0.01
68 °
Monona, Tuesday, 20 October
Light rain. High 68°, low 49°.
Pressure30.03 inHg
Wind16.3 mph S
Humidity65%
Visibility—
Dew point52°
Wed, 2164° / 58°0.54
64 °
Monona, Wednesday, 21 October
Rain. High 64°, low 58°.
Pressure29.85 inHg
Wind16.3 mph S
Humidity88%
Visibility—
Dew point60°
Thu, 2256° / 44°1.34
56 °
Monona, Thursday, 22 October
Heavy rain. High 56°, low 44°.
Pressure29.80 inHg
Wind17.5 mph W
Humidity56%
Visibility—
Dew point37°
Fri, 2346° / 35°0
46 °
Monona, Friday, 23 October
Partly cloudy. High 46°, low 35°.
Pressure30.06 inHg
Wind18.1 mph NW
Humidity58%
Visibility—
Dew point29°
Sat, 2448° / 31°0
48 °
Monona, Saturday, 24 October
Partly cloudy. High 48°, low 31°.
Pressure30.12 inHg
Wind10.6 mph SE
Humidity53%
Visibility—
Dew point28°
Sun, 2546° / 41°0.06
46 °
Monona, Sunday, 25 October
Light rain. High 46°, low 41°.
Pressure29.77 inHg
Wind11.9 mph SE
Humidity85%
Visibility—
Dew point42°
Mon, 2648° / 43°0.01
48 °
Monona, Monday, 26 October
Light rain. High 48°, low 43°.
Pressure30.03 inHg
Wind8.8 mph NW
Humidity86%
Visibility—
Dew point43°
Tue, 2749° / 38°0
49 °
Monona, Tuesday, 27 October
Mostly clear. High 49°, low 38°.
Pressure30.03 inHg
Wind11.2 mph NW
Humidity56%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2853° / 39°0.07
53 °
Monona, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.07 in
Chance of precipitation25%
Record high70° (2016)
Record low27° (1969)
Thu, 2953° / 40°0.09
53 °
Monona, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.09 in
Chance of precipitation27%
Record high78° (2024)
Record low25° (2019)
Fri, 3054° / 40°0.08
54 °
Monona, Friday, 30 October
Climate normal for this date — 60-year average.
Average high54°
Average low40°
Average precipitation0.08 in
Chance of precipitation30%
Record high76° (2024)
Record low22° (2023)
Sat, 3152° / 40°0.11
52 °
Monona, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low40°
Average precipitation0.11 in
Chance of precipitation35%
Record high70° (1968)
Record low26° (2019)
Sun, 0151° / 38°0.18
51 °
Monona, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.18 in
Chance of precipitation28%
Record high72° (2000)
Record low22° (2023)
Mon, 0250° / 38°0.07
50 °
Monona, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.07 in
Chance of precipitation27%
Record high69° (2022)
Record low15° (1991)
Tue, 0350° / 37°0.07
50 °
Monona, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.07 in
Chance of precipitation22%
Record high70° (2008)
Record low11° (1991)
Wed, 0449° / 37°0.08
49 °
Monona, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.08 in
Chance of precipitation30%
Record high70° (2008)
Record low6° (1991)
Thu, 0549° / 36°0.07
49 °
Monona, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.07 in
Chance of precipitation25%
Record high69° (2020)
Record low16° (1991)
Fri, 0649° / 36°0.06
49 °
Monona, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.06 in
Chance of precipitation27%
Record high68° (2020)
Record low10° (1991)
Sat, 0748° / 35°0.02
48 °
Monona, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.02 in
Chance of precipitation12%
Record high68° (2001)
Record low-7° (1991)
Sun, 0848° / 35°0.04
48 °
Monona, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.04 in
Chance of precipitation23%
Record high71° (1999)
Record low0° (1991)
Mon, 0947° / 35°0.1
47 °
Monona, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.1 in
Chance of precipitation37%
Record high70° (1999)
Record low16° (1991)
Tue, 1046° / 34°0.1
46 °
Monona, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.1 in
Chance of precipitation33%
Record high69° (2012)
Record low12° (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 Monona, 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 Monona, 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.