Monthly outlook for May City, IA: average high 56.9°, average low 45°. That is 5° above the climate normal for October. Precipitation is expected on 3 days (about 2.0 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 31 October (67.2°), the coolest 6 November (31°).
56.9°/45°
Average high / low
+5°
Above normal
3 / 4
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
29 October – 7 November
56.8°
50.1°
+3.7°
8 November – 17 November
57.2°
43.9°
+7.4°
18 November – 27 November
at normal
38.6°
—
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).
Fri, 3056° / 43°0.01
56 °
May City, Friday, 30 October
Light rain. High 56°, low 43°.
Pressure30.27 inHg
Wind8.3 mph E
Humidity70%
Visibility6.2 mi
Dew point41°
Sat, 3167° / 50°0
67 °
May City, Saturday, 31 October
Overcast. High 67°, low 50°.
Pressure30.21 inHg
Wind7.4 mph SE
Humidity91%
Visibility6.2 mi
Dew point54°
Sun, 0166° / 49°0
66 °
May City, Sunday, 1 November
Overcast. High 66°, low 49°.
Pressure30.21 inHg
Wind8 mph SE
Humidity77%
Visibility6.2 mi
Dew point55°
Mon, 0261° / 56°1.03
61 °
May City, Monday, 2 November
Rain. High 61°, low 56°.
Pressure29.71 inHg
Wind18.4 mph SE
Humidity96%
Visibility—
Dew point58°
Tue, 0365° / 55°0.02
65 °
May City, Tuesday, 3 November
Light rain. High 65°, low 55°.
Pressure29.59 inHg
Wind10.2 mph W
Humidity61%
Visibility—
Dew point49°
Wed, 0452° / 41°0
52 °
May City, Wednesday, 4 November
Overcast. High 52°, low 41°.
Pressure29.74 inHg
Wind20.6 mph NW
Humidity63%
Visibility—
Dew point36°
Thu, 0545° / 35°0
45 °
May City, Thursday, 5 November
Clear. High 45°, low 35°.
Pressure29.88 inHg
Wind16.5 mph W
Humidity45%
Visibility—
Dew point22°
Fri, 0647° / 31°0
47 °
May City, Friday, 6 November
Clear. High 47°, low 31°.
Pressure30.00 inHg
Wind8.9 mph W
Humidity37%
Visibility—
Dew point18°
Sat, 0749° / 38°0
49 °
May City, Saturday, 7 November
Overcast. High 49°, low 38°.
Pressure30.03 inHg
Wind12.6 mph SE
Humidity43%
Visibility—
Dew point25°
Sun, 0845° / 44°0.78
45 °
May City, Sunday, 8 November
Rain. High 45°, low 44°.
Pressure29.97 inHg
Wind10 mph N
Humidity98%
Visibility—
Dew point44°
Mon, 0946° / 43°0.16
46 °
May City, Monday, 9 November
Light rain. High 46°, low 43°.
Pressure29.97 inHg
Wind12.3 mph N
Humidity97%
Visibility—
Dew point45°
Tue, 1056° / 46°0
56 °
May City, Tuesday, 10 November
Overcast. High 56°, low 46°.
Pressure30.09 inHg
Wind11.3 mph S
Humidity71%
Visibility—
Dew point44°
Wed, 1163° / 48°0
63 °
May City, Wednesday, 11 November
Overcast. High 63°, low 48°.
Pressure29.88 inHg
Wind14.2 mph S
Humidity67%
Visibility—
Dew point46°
Thu, 1267° / 50°0
67 °
May City, Thursday, 12 November
Clear. High 67°, low 50°.
Pressure29.85 inHg
Wind11.1 mph W
Humidity46%
Visibility—
Dew point41°
Fri, 1367° / 51°0
67 °
May City, Friday, 13 November
Clear. High 67°, low 51°.
Pressure29.65 inHg
Wind9 mph W
Humidity52%
Visibility—
Dew point45°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Tue, 1743° / 28°0.06
43 °
May City, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.06 in
Chance of precipitation23%
Record high65° (2001)
Record low4° (2014)
Wed, 1842° / 28°0.06
42 °
May City, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.06 in
Chance of precipitation18%
Record high70° (1999)
Record low2° (2014)
Thu, 1941° / 28°0.09
41 °
May City, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.09 in
Chance of precipitation28%
Record high59° (2003)
Record low6° (1997)
Fri, 2040° / 26°0.08
40 °
May City, Friday, 20 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.08 in
Chance of precipitation17%
Record high61° (2003)
Record low5° (2000)
Sat, 2139° / 24°0.04
39 °
May City, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high39°
Average low24°
Average precipitation0.04 in
Chance of precipitation10%
Record high66° (1990)
Record low-6° (2000)
Sun, 2240° / 25°0.03
40 °
May City, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.03 in
Chance of precipitation17%
Record high58° (1998)
Record low5° (2000)
Mon, 2338° / 24°0.04
38 °
May City, Monday, 23 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.04 in
Chance of precipitation27%
Record high57° (2006)
Record low-3° (1985)
Tue, 2439° / 23°0.06
39 °
May City, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high39°
Average low23°
Average precipitation0.06 in
Chance of precipitation17%
Record high61° (2011)
Record low-8° (1985)
Wed, 2538° / 23°0.02
38 °
May City, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high38°
Average low23°
Average precipitation0.02 in
Chance of precipitation17%
Record high60° (1960)
Record low-2° (1996)
Thu, 2636° / 23°0.06
36 °
May City, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high36°
Average low23°
Average precipitation0.06 in
Chance of precipitation30%
Record high58° (1960)
Record low-10° (1993)
Fri, 2734° / 20°0.07
34 °
May City, Friday, 27 November
Climate normal for this date — 60-year average.
Average high34°
Average low20°
Average precipitation0.07 in
Chance of precipitation28%
Record high61° (1998)
Record low-2° (1996)
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.