Monthly outlook for Monona, IA: average high 54.4°, average low 39.1°. That is 0.7° below the climate normal for October. Precipitation is expected on 3 days (about 1.1 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 23 October (65.2°), the coolest 30 October (24.4°).
54.4°/39.1°
Average high / low
−0.7°
Below normal
3 / 4
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
59.5°
56.9°
+1.5°
25 October – 3 November
45.9°
52.6°
-3.8°
4 November – 13 November
at normal
46.8°
—
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).
Fri, 1650° / 40°0.02
50 °
Monona, Friday, 16 October
Light rain. High 50°, low 40°.
Pressure30.27 inHg
Wind22.3 mph N
Humidity63%
Visibility6.2 mi
Dew point38°
Sat, 1756° / 34°0
56 °
Monona, Saturday, 17 October
Clear. High 56°, low 34°.
Pressure30.50 inHg
Wind11 mph SW
Humidity46%
Visibility6.2 mi
Dew point32°
Sun, 1860° / 41°0
60 °
Monona, Sunday, 18 October
Clear. High 60°, low 41°.
Pressure30.33 inHg
Wind15.4 mph SW
Humidity56%
Visibility6.2 mi
Dew point40°
Mon, 1961° / 42°0
61 °
Monona, Monday, 19 October
Overcast. High 61°, low 42°.
Pressure30.33 inHg
Wind8.8 mph S
Humidity58%
Visibility—
Dew point43°
Tue, 2063° / 42°0
63 °
Monona, Tuesday, 20 October
Clear. High 63°, low 42°.
Pressure30.30 inHg
Wind7.5 mph S
Humidity50%
Visibility—
Dew point41°
Wed, 2164° / 46°0
64 °
Monona, Wednesday, 21 October
Clear. High 64°, low 46°.
Pressure30.33 inHg
Wind11.4 mph SE
Humidity51%
Visibility—
Dew point43°
Thu, 2258° / 50°0.08
58 °
Monona, Thursday, 22 October
Light rain. High 58°, low 50°.
Pressure30.21 inHg
Wind10.7 mph S
Humidity84%
Visibility—
Dew point52°
Fri, 2365° / 53°0
65 °
Monona, Friday, 23 October
Overcast. High 65°, low 53°.
Pressure30.03 inHg
Wind19.7 mph S
Humidity56%
Visibility—
Dew point47°
Sat, 2462° / 47°0
62 °
Monona, Saturday, 24 October
Overcast. High 62°, low 47°.
Pressure30.03 inHg
Wind21.8 mph S
Humidity56%
Visibility—
Dew point44°
Sun, 2549° / 36°0
49 °
Monona, Sunday, 25 October
Clear. High 49°, low 36°.
Pressure30.15 inHg
Wind15.8 mph W
Humidity45%
Visibility—
Dew point27°
Mon, 2645° / 31°0
45 °
Monona, Monday, 26 October
Overcast. High 45°, low 31°.
Pressure30.33 inHg
Wind12.7 mph W
Humidity39%
Visibility—
Dew point19°
Tue, 2743° / 25°0
43 °
Monona, Tuesday, 27 October
Clear. High 43°, low 25°.
Pressure30.30 inHg
Wind11.8 mph W
Humidity33%
Visibility—
Dew point12°
Wed, 2853° / 31°0.02
53 °
Monona, Wednesday, 28 October
Light rain. High 53°, low 31°.
Pressure29.97 inHg
Wind12.1 mph SW
Humidity58%
Visibility—
Dew point37°
Thu, 2947° / 33°0.06
47 °
Monona, Thursday, 29 October
Light rain. High 47°, low 33°.
Pressure30.12 inHg
Wind10.2 mph NW
Humidity49%
Visibility—
Dew point26°
Fri, 3038° / 24°0
38 °
Monona, Friday, 30 October
Clear. High 38°, low 24°.
Pressure30.56 inHg
Wind14.4 mph N
Humidity33%
Visibility—
Dew point9°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 1144° / 32°0.07
44 °
Monona, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.07 in
Chance of precipitation28%
Record high68° (1964)
Record low12° (2019)
Thu, 1243° / 31°0.05
43 °
Monona, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.05 in
Chance of precipitation30%
Record high63° (1964)
Record low5° (2019)
Fri, 1344° / 31°0.06
44 °
Monona, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (1999)
Record low5° (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 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.