Monthly outlook for May City, IA: average high 64.9°, average low 47.1°. That is 5.9° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 1.1 inches. The warmest day looks like 1 November (75.3°), the coolest 25 October (38.6°).
64.9°/47.1°
Average high / low
+5.9°
Above normal
0 / 4
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
64°
56°
+4.5°
28 October – 6 November
66.5°
50.5°
+8.9°
7 November – 16 November
at normal
44.5°
—
October records over 66 years
89.2°3 October 2025All-time high
14.4°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Melvin (7 mi).
Mon, 1963° / 42°0
63 °
May City, Monday, 19 October
Overcast. High 63°, low 42°.
Pressure30.30 inHg
Wind6.3 mph SE
Humidity64%
Visibility6.2 mi
Dew point46°
Tue, 2066° / 45°0
66 °
May City, Tuesday, 20 October
Clear. High 66°, low 45°.
Pressure30.27 inHg
Wind9.9 mph S
Humidity60%
Visibility6.2 mi
Dew point46°
Wed, 2170° / 51°0
70 °
May City, Wednesday, 21 October
Clear. High 70°, low 51°.
Pressure30.18 inHg
Wind7.8 mph SW
Humidity63%
Visibility6.2 mi
Dew point52°
Thu, 2271° / 50°0
71 °
May City, Thursday, 22 October
Mostly clear. High 71°, low 50°.
Pressure30.21 inHg
Wind10.2 mph SE
Humidity55%
Visibility—
Dew point50°
Fri, 2369° / 53°0.02
69 °
May City, Friday, 23 October
Light rain. High 69°, low 53°.
Pressure30.09 inHg
Wind18.9 mph S
Humidity53%
Visibility—
Dew point48°
Sat, 2465° / 47°0.01
65 °
May City, Saturday, 24 October
Light rain. High 65°, low 47°.
Pressure30.12 inHg
Wind19.9 mph NW
Humidity56%
Visibility—
Dew point44°
Sun, 2553° / 39°0
53 °
May City, Sunday, 25 October
Mostly clear. High 53°, low 39°.
Pressure30.53 inHg
Wind12.8 mph NW
Humidity30%
Visibility—
Dew point19°
Mon, 2656° / 40°0
56 °
May City, Monday, 26 October
Mostly clear. High 56°, low 40°.
Pressure30.15 inHg
Wind17.8 mph SW
Humidity44%
Visibility—
Dew point33°
Tue, 2763° / 47°0
63 °
May City, Tuesday, 27 October
Partly cloudy. High 63°, low 47°.
Pressure30.06 inHg
Wind11.9 mph S
Humidity69%
Visibility—
Dew point49°
Wed, 2867° / 53°0.01
67 °
May City, Wednesday, 28 October
Light rain. High 67°, low 53°.
Pressure29.77 inHg
Wind15.6 mph W
Humidity55%
Visibility—
Dew point49°
Thu, 2963° / 47°0
63 °
May City, Thursday, 29 October
Clear. High 63°, low 47°.
Pressure29.77 inHg
Wind8.5 mph W
Humidity31%
Visibility—
Dew point29°
Fri, 3064° / 49°0
64 °
May City, Friday, 30 October
Overcast. High 64°, low 49°.
Pressure29.56 inHg
Wind14.6 mph SW
Humidity43%
Visibility—
Dew point40°
Sat, 3167° / 49°0
67 °
May City, Saturday, 31 October
Overcast. High 67°, low 49°.
Pressure29.62 inHg
Wind13.6 mph SW
Humidity33%
Visibility—
Dew point33°
Sun, 0175° / 53°0
75 °
May City, Sunday, 1 November
Overcast. High 75°, low 53°.
Pressure29.85 inHg
Wind9.1 mph N
Humidity25%
Visibility—
Dew point31°
Mon, 0262° / 45°0
62 °
May City, Monday, 2 November
Partly cloudy. High 62°, low 45°.
Pressure30.27 inHg
Wind11.8 mph E
Humidity36%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0349° / 34°0.06
49 °
May City, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high72° (1978)
Record low0° (1991)
Wed, 0449° / 33°0.02
49 °
May City, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.02 in
Chance of precipitation15%
Record high71° (2020)
Record low-12° (1991)
Thu, 0549° / 33°0.05
49 °
May City, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (2001)
Record low11° (1991)
Fri, 0649° / 33°0.04
49 °
May City, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.04 in
Chance of precipitation20%
Record high72° (2020)
Record low2° (1991)
Sat, 0748° / 32°0.02
48 °
May City, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.02 in
Chance of precipitation10%
Record high71° (2001)
Record low-17° (1991)
Sun, 0848° / 32°0.04
48 °
May City, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.04 in
Chance of precipitation13%
Record high75° (1999)
Record low-2° (1991)
Mon, 0946° / 32°0.15
46 °
May City, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.15 in
Chance of precipitation23%
Record high71° (1999)
Record low13° (2018)
Tue, 1044° / 29°0.09
44 °
May City, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.09 in
Chance of precipitation32%
Record high69° (2012)
Record low10° (2018)
Wed, 1142° / 27°0.06
42 °
May City, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high42°
Average low27°
Average precipitation0.06 in
Chance of precipitation20%
Record high64° (1964)
Record low3° (1986)
Thu, 1241° / 27°0.06
41 °
May City, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high41°
Average low27°
Average precipitation0.06 in
Chance of precipitation23%
Record high66° (1999)
Record low-1° (1966)
Fri, 1344° / 28°0.06
44 °
May City, Friday, 13 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.06 in
Chance of precipitation30%
Record high71° (1999)
Record low1° (1986)
Sat, 1443° / 29°0.03
43 °
May City, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.03 in
Chance of precipitation13%
Record high69° (2025)
Record low8° (2014)
Sun, 1544° / 28°0.06
44 °
May City, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.06 in
Chance of precipitation20%
Record high67° (2001)
Record low7° (2000)
Mon, 1644° / 28°0.1
44 °
May City, Monday, 16 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.1 in
Chance of precipitation20%
Record high69° (2001)
Record low-2° (2014)
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 May City, 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 May City, 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.