Monthly outlook for Hannibal, WI: average high 56.8°, average low 43.1°. That is 2.5° above the climate normal for October. Precipitation is expected on 3 days (about 2.6 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 October (68.8°), the coolest 25 October (30.4°).
56.8°/43.1°
Average high / low
+2.5°
Above normal
3 / 5
Wet days / normal
2.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
60°
53.5°
+3.6°
23 October – 1 November
51.5°
49.6°
+1.1°
2 November – 11 November
at normal
43.8°
—
October records over 66 years
84.4°1 October 2023All-time high
18.9°27 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Gilman (6 mi).
Wed, 1459° / 48°0
59 °
Hannibal, Wednesday, 14 October
Overcast. High 59°, low 48°.
Pressure30.21 inHg
Wind5.1 mph N
Humidity60%
Visibility6.2 mi
Dew point41°
Thu, 1556° / 46°0.31
56 °
Hannibal, Thursday, 15 October
Rain. High 56°, low 46°.
Pressure30.12 inHg
Wind5.6 mph S
Humidity72%
Visibility6.2 mi
Dew point47°
Fri, 1650° / 39°0.03
50 °
Hannibal, Friday, 16 October
Light rain. High 50°, low 39°.
Pressure30.36 inHg
Wind19.3 mph N
Humidity59%
Visibility6.2 mi
Dew point33°
Sat, 1757° / 34°0
57 °
Hannibal, Saturday, 17 October
Clear. High 57°, low 34°.
Pressure30.30 inHg
Wind13.9 mph SW
Humidity42%
Visibility—
Dew point29°
Sun, 1859° / 44°0
59 °
Hannibal, Sunday, 18 October
Overcast. High 59°, low 44°.
Pressure30.00 inHg
Wind13.7 mph SW
Humidity50%
Visibility—
Dew point37°
Mon, 1962° / 42°0
62 °
Hannibal, Monday, 19 October
Clear. High 62°, low 42°.
Pressure30.15 inHg
Wind6.9 mph SW
Humidity53%
Visibility—
Dew point41°
Tue, 2063° / 49°0
63 °
Hannibal, Tuesday, 20 October
Overcast. High 63°, low 49°.
Pressure30.18 inHg
Wind10.7 mph S
Humidity67%
Visibility—
Dew point47°
Wed, 2169° / 55°0
69 °
Hannibal, Wednesday, 21 October
Overcast. High 69°, low 55°.
Pressure30.09 inHg
Wind14.3 mph S
Humidity69%
Visibility—
Dew point57°
Thu, 2263° / 62°1.43
63 °
Hannibal, Thursday, 22 October
Rain. High 63°, low 62°.
Pressure29.85 inHg
Wind15 mph S
Humidity97%
Visibility—
Dew point62°
Fri, 2364° / 45°0.87
64 °
Hannibal, Friday, 23 October
Heavy rain. High 64°, low 45°.
Pressure29.74 inHg
Wind21.4 mph SW
Humidity78%
Visibility—
Dew point46°
Sat, 2441° / 39°0
41 °
Hannibal, Saturday, 24 October
Overcast. High 41°, low 39°.
Pressure30.18 inHg
Wind17.4 mph W
Humidity63%
Visibility—
Dew point29°
Sun, 2549° / 30°0
49 °
Hannibal, Sunday, 25 October
Clear. High 49°, low 30°.
Pressure30.12 inHg
Wind10.2 mph NW
Humidity50%
Visibility—
Dew point27°
Mon, 2651° / 31°0
51 °
Hannibal, Monday, 26 October
Clear. High 51°, low 31°.
Pressure30.30 inHg
Wind8.6 mph W
Humidity53%
Visibility—
Dew point30°
Tue, 2756° / 36°0
56 °
Hannibal, Tuesday, 27 October
Overcast. High 56°, low 36°.
Pressure30.00 inHg
Wind16.7 mph SW
Humidity59%
Visibility—
Dew point38°
Wed, 2848° / 39°0
48 °
Hannibal, Wednesday, 28 October
Mostly clear. High 48°, low 39°.
Pressure29.97 inHg
Wind15.2 mph NW
Humidity50%
Visibility—
Dew point29°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2949° / 36°0.09
49 °
Hannibal, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation27%
Record high77° (2024)
Record low21° (1988)
Fri, 3050° / 36°0.07
50 °
Hannibal, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.07 in
Chance of precipitation35%
Record high72° (2024)
Record low20° (1988)
Sat, 3148° / 36°0.1
48 °
Hannibal, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.1 in
Chance of precipitation30%
Record high67° (2000)
Record low19° (1996)
Sun, 0146° / 35°0.13
46 °
Hannibal, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.13 in
Chance of precipitation25%
Record high69° (2000)
Record low21° (1984)
Mon, 0246° / 34°0.06
46 °
Hannibal, Monday, 2 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2022)
Record low14° (1991)
Tue, 0346° / 34°0.04
46 °
Hannibal, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.04 in
Chance of precipitation25%
Record high67° (2008)
Record low11° (1991)
Wed, 0445° / 33°0.07
45 °
Hannibal, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.07 in
Chance of precipitation23%
Record high67° (2008)
Record low3° (1991)
Thu, 0545° / 33°0.07
45 °
Hannibal, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.07 in
Chance of precipitation32%
Record high66° (2016)
Record low10° (1991)
Fri, 0645° / 33°0.05
45 °
Hannibal, Friday, 6 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.05 in
Chance of precipitation23%
Record high68° (2020)
Record low2° (1991)
Sat, 0744° / 32°0.03
44 °
Hannibal, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.03 in
Chance of precipitation22%
Record high67° (2020)
Record low-12° (1991)
Sun, 0844° / 31°0.04
44 °
Hannibal, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.04 in
Chance of precipitation23%
Record high68° (2020)
Record low-7° (1991)
Mon, 0943° / 31°0.11
43 °
Hannibal, Monday, 9 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.11 in
Chance of precipitation50%
Record high68° (2020)
Record low10° (2003)
Tue, 1041° / 30°0.14
41 °
Hannibal, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.14 in
Chance of precipitation35%
Record high65° (2022)
Record low7° (2017)
Wed, 1140° / 28°0.09
40 °
Hannibal, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.09 in
Chance of precipitation35%
Record high63° (1964)
Record low7° (1979)
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 Hannibal, WI 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 Hannibal, WI 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.