Monthly outlook for Vandalia, IA: average high 63.6°, average low 49.2°. That is 4.6° above the climate normal for October. Precipitation is expected on 6 days (about 2.3 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 23 October (75.2°), the coolest 5 November (38.1°).
63.6°/49.2°
Average high / low
+4.6°
Above normal
6 / 4
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
67.5°
57°
+5.9°
2 November – 11 November
57°
51.5°
+3.1°
12 November – 21 November
at normal
47.1°
—
October records over 66 years
89.2°6 October 1963All-time high
9.7°29 October 1980All-time low
Climate normals and records are computed from the nearest reference point — Mitchellville (9 mi).
Sat, 2475° / 54°0
75 °
Vandalia, Saturday, 24 October
Clear. High 75°, low 54°.
Pressure30.21 inHg
Wind10.1 mph S
Humidity55%
Visibility6.2 mi
Dew point53°
Sun, 2573° / 55°0
73 °
Vandalia, Sunday, 25 October
Mostly clear. High 73°, low 55°.
Pressure30.33 inHg
Wind1.5 mph W
Humidity63%
Visibility6.2 mi
Dew point56°
Mon, 2671° / 55°0
71 °
Vandalia, Monday, 26 October
Overcast. High 71°, low 55°.
Pressure30.33 inHg
Wind6.7 mph E
Humidity65%
Visibility6.2 mi
Dew point53°
Tue, 2772° / 56°0.04
72 °
Vandalia, Tuesday, 27 October
Light rain. High 72°, low 56°.
Pressure30.18 inHg
Wind10.9 mph S
Humidity59%
Visibility—
Dew point52°
Wed, 2872° / 56°0.04
72 °
Vandalia, Wednesday, 28 October
Light rain. High 72°, low 56°.
Pressure29.94 inHg
Wind15.5 mph S
Humidity62%
Visibility—
Dew point51°
Thu, 2964° / 50°1.02
64 °
Vandalia, Thursday, 29 October
Rain. High 64°, low 50°.
Pressure30.15 inHg
Wind11.3 mph SW
Humidity84%
Visibility—
Dew point49°
Fri, 3056° / 49°0.35
56 °
Vandalia, Friday, 30 October
Rain. High 56°, low 49°.
Pressure30.12 inHg
Wind12 mph SE
Humidity90%
Visibility—
Dew point49°
Sat, 3159° / 56°0.8
59 °
Vandalia, Saturday, 31 October
Rain. High 59°, low 56°.
Pressure29.77 inHg
Wind16.5 mph S
Humidity93%
Visibility—
Dew point56°
Sun, 0158° / 46°0.06
58 °
Vandalia, Sunday, 1 November
Light rain. High 58°, low 46°.
Pressure30.03 inHg
Wind11 mph NW
Humidity52%
Visibility—
Dew point38°
Mon, 0260° / 46°0
60 °
Vandalia, Monday, 2 November
Overcast. High 60°, low 46°.
Pressure30.15 inHg
Wind11 mph NW
Humidity49%
Visibility—
Dew point37°
Tue, 0349° / 39°0
49 °
Vandalia, Tuesday, 3 November
Overcast. High 49°, low 39°.
Pressure30.36 inHg
Wind12.1 mph N
Humidity58%
Visibility—
Dew point33°
Wed, 0452° / 40°0
52 °
Vandalia, Wednesday, 4 November
Partly cloudy. High 52°, low 40°.
Pressure30.18 inHg
Wind13.5 mph NW
Humidity51%
Visibility—
Dew point32°
Thu, 0558° / 38°0
58 °
Vandalia, Thursday, 5 November
Overcast. High 58°, low 38°.
Pressure30.06 inHg
Wind14.4 mph W
Humidity43%
Visibility—
Dew point31°
Fri, 0666° / 47°0
66 °
Vandalia, Friday, 6 November
Clear. High 66°, low 47°.
Pressure29.94 inHg
Wind9.6 mph NW
Humidity48%
Visibility—
Dew point42°
Sat, 0758° / 45°0
58 °
Vandalia, Saturday, 7 November
Overcast. High 58°, low 45°.
Pressure29.94 inHg
Wind14.4 mph SE
Humidity69%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0851° / 36°0.04
51 °
Vandalia, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.04 in
Chance of precipitation20%
Record high76° (1999)
Record low-1° (1991)
Mon, 0951° / 36°0.09
51 °
Vandalia, Monday, 9 November
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.09 in
Chance of precipitation32%
Record high73° (1999)
Record low13° (1991)
Tue, 1049° / 33°0.08
49 °
Vandalia, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.08 in
Chance of precipitation28%
Record high74° (2012)
Record low14° (2018)
Wed, 1148° / 32°0.09
48 °
Vandalia, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.09 in
Chance of precipitation20%
Record high71° (1964)
Record low10° (2019)
Thu, 1246° / 31°0.06
46 °
Vandalia, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.06 in
Chance of precipitation27%
Record high67° (2005)
Record low0° (2019)
Fri, 1348° / 31°0.07
48 °
Vandalia, Friday, 13 November
Climate normal for this date — 60-year average.
Average high48°
Average low31°
Average precipitation0.07 in
Chance of precipitation23%
Record high76° (1999)
Record low6° (1986)
Sat, 1447° / 32°0.03
47 °
Vandalia, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high47°
Average low32°
Average precipitation0.03 in
Chance of precipitation18%
Record high72° (2025)
Record low15° (1986)
Sun, 1548° / 33°0.06
48 °
Vandalia, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation23%
Record high70° (2001)
Record low4° (1972)
Mon, 1648° / 32°0.05
48 °
Vandalia, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.05 in
Chance of precipitation22%
Record high70° (2001)
Record low14° (1997)
Tue, 1749° / 33°0.1
49 °
Vandalia, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high49°
Average low33°
Average precipitation0.1 in
Chance of precipitation27%
Record high72° (2016)
Record low12° (2005)
Wed, 1848° / 33°0.06
48 °
Vandalia, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low33°
Average precipitation0.06 in
Chance of precipitation28%
Record high72° (1999)
Record low9° (2014)
Thu, 1948° / 32°0.07
48 °
Vandalia, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high48°
Average low32°
Average precipitation0.07 in
Chance of precipitation23%
Record high68° (2020)
Record low16° (1972)
Fri, 2045° / 31°0.08
45 °
Vandalia, Friday, 20 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.08 in
Chance of precipitation27%
Record high65° (2003)
Record low12° (1964)
Sat, 2144° / 29°0.04
44 °
Vandalia, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.04 in
Chance of precipitation22%
Record high71° (1990)
Record low7° (1964)
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 Vandalia, 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 Vandalia, 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.