Live Weather & Forecast

Weather in Hannibal

Missouri, United States · Real-time conditions & 3-day outlook

Flag of United States
Partly cloudy
22°C
Feels like 25°C
72°F / Feels 76°F
Partly cloudy
Hannibal, Missouri
🌞 Daytime
Updated: 2026-04-14 10:45
💧
Humidity
79%
💨
Wind
24.5 km/h SW
🌬️
Wind Gust
29.9 km/h
🌡️
Pressure
1010 mb
👁️
Visibility
16 km
☀️
UV Index
3.4 (Moderate)
🌧️
Precipitation
0 mm
☁️
Cloud Cover
75%
💦
Dew Point
20°C
🌐
Wind Degree
218°

Air Quality Index

US EPA: Good UK DEFRA: Low (1)
CO
139.9 μg/m³
NO₂
1.6 μg/m³
O₃
91 μg/m³
SO₂
1 μg/m³
PM 2.5
6.5 μg/m³
PM 10
7.5 μg/m³

Weather Alerts 5

Met · Severe · Immediate
Flood Warning issued April 13 at 11:39AM CDT until April 18 at 1:00PM CDT by NWS St Louis MO

...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Louisiana. Mississippi River at Hannibal. Mississippi River at Clarksville. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Hannibal. *...

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Effective: 2026-04-13T11:39:00-05:00  ·  Expires: 2026-04-14T23:45:00-05:00
Met · Severe · Immediate
Flood Warning issued April 13 at 9:43PM CDT until April 18 at 7:00PM CDT by NWS St Louis MO

...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE......

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Rainfall heavier than forecast could cause river levels to rise even higher than predicted. The National Weather Service will monitor this developing situation and issue follow up statements as conditions...

Effective: 2026-04-13T21:43:00-05:00  ·  Expires: 2026-04-15T09:45:00-05:00
Met · Severe · Immediate
Flood Warning issued April 13 at 11:39AM CDT until April 20 at 1:00AM CDT by NWS St Louis MO

...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Louisiana. Mississippi River at Hannibal. Mississippi River at Clarksville. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Louisiana. *...

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Effective: 2026-04-13T11:39:00-05:00  ·  Expires: 2026-04-14T23:45:00-05:00
Met · Severe · Immediate
Flood Warning issued April 13 at 9:43PM CDT until April 20 at 7:00AM CDT by NWS St Louis MO

...The Flood Warning is extended for the following rivers in Missouri...Illinois... Mississippi River at Hannibal. Mississippi River at Clarksville. Mississippi River at Louisiana. Mississippi River at Winfield. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE......

Motorists should not attempt to drive around barricades or drive cars through flooded areas. Rainfall heavier than forecast could cause river levels to rise even higher than predicted. The National Weather Service will monitor this developing situation and issue follow up statements as conditions...

Effective: 2026-04-13T21:43:00-05:00  ·  Expires: 2026-04-15T09:45:00-05:00
Met · Severe · Immediate
Flood Warning issued April 13 at 11:39AM CDT until April 20 at 7:00AM CDT by NWS St Louis MO

...The Flood Warning continues for the following rivers in Illinois...Missouri... Mississippi River at Louisiana. Mississippi River at Hannibal. Mississippi River at Clarksville. River forecasts are based on observed precipitation and forecast precipitation for the next 24 hours. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Clarksville....

Motorists should not attempt to drive around barricades or drive cars through flooded areas. This product, along with additional weather and stream information, is available at https://water.noaa.gov/wfo/lsx

Effective: 2026-04-13T11:39:00-05:00  ·  Expires: 2026-04-14T23:45:00-05:00

Today's Hourly Forecast

24-hour breakdown for Hannibal, Missouri

12 AM
Patchy rain nearby
23°
Patchy rain nearby
💧 64% 💨 28.4 km/h 🌧️ 86%
1 AM
Patchy rain nearby
22°
Patchy rain nearby
💧 60% 💨 28.1 km/h 🌧️ 100%
2 AM
Patchy rain nearby
21°
Patchy rain nearby
💧 58% 💨 25.2 km/h 🌧️ 100%
3 AM
Clear
20°
Clear
💧 72% 💨 23.4 km/h
4 AM
Clear
20°
Clear
💧 78% 💨 25.2 km/h
5 AM
Clear
20°
Clear
💧 81% 💨 21.6 km/h
6 AM
Clear
19°
Clear
💧 85% 💨 20.9 km/h
7 AM
Partly Cloudy
19°
Partly Cloudy
💧 87% 💨 19.4 km/h
8 AM
Overcast
20°
Overcast
💧 87% 💨 21.2 km/h
9 AM
Cloudy
22°
Cloudy
💧 85% 💨 22.3 km/h
10 AM
Partly cloudy
22°
Partly cloudy
💧 79% 💨 24.5 km/h
11 AM
Partly Cloudy
24°
Partly Cloudy
💧 79% 💨 24.1 km/h
12 PM
Cloudy
25°
Cloudy
💧 77% 💨 23.4 km/h
1 PM
Overcast
26°
Overcast
💧 78% 💨 22.3 km/h
2 PM
Sunny
29°
Sunny
💧 71% 💨 25.6 km/h
3 PM
Sunny
30°
Sunny
💧 59% 💨 27.7 km/h
4 PM
Sunny
31°
Sunny
💧 52% 💨 26.6 km/h
5 PM
Sunny
31°
Sunny
💧 46% 💨 25.6 km/h
6 PM
Sunny
30°
Sunny
💧 44% 💨 25.9 km/h
7 PM
Sunny
28°
Sunny
💧 48% 💨 24.8 km/h
8 PM
Clear
27°
Clear
💧 56% 💨 25.6 km/h
9 PM
Clear
26°
Clear
💧 58% 💨 26.3 km/h
10 PM
Clear
25°
Clear
💧 60% 💨 27.4 km/h
11 PM
Clear
25°
Clear
💧 60% 💨 34.2 km/h

3-Day Forecast

Daily overview for Hannibal, Missouri

Today
Patchy rain nearby
Patchy rain nearby
32° / 18°
🌧️ 86% chance of rain
💧 Avg. humidity: 68%
💨 Max wind: 34.2 km/h
🌧️ Total precip: 0.25 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:29 AM
🌇 Sunset: 07:43 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Heavy rain
Heavy rain
26° / 17°
🌧️ 89% chance of rain
💧 Avg. humidity: 83%
💨 Max wind: 33.8 km/h
🌧️ Total precip: 32.25 mm
☀️ UV Index: 1.4
🌅 Sunrise: 06:28 AM
🌇 Sunset: 07:44 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Thu, Apr 16
Sunny
Sunny
28° / 13°
🌧️ 0% chance of rain
💧 Avg. humidity: 69%
💨 Max wind: 27.7 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.8
🌅 Sunrise: 06:26 AM
🌇 Sunset: 07:45 PM
🌙 Waning Crescent
🌑 Moon: 3% lit

Best Time to Visit Hannibal

Plan your trip to Hannibal, United States around the most favorable weather conditions.

Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
← Back to Hannibal 🗓 View Holidays 2026

Frequently Asked Questions

What is the current weather in Hannibal?
Current conditions in Hannibal: Partly cloudy, temperature 22°C, humidity 79%.
What is the best time to visit Hannibal?
The best time to visit Hannibal is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Hannibal?
Hannibal is located at approximately 39.7° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Hannibal?
The wettest period in Hannibal is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Hannibal?
For visits to Hannibal during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Hannibal in?
Hannibal is located in United States, in the state of Missouri.
What are the public holidays in Hannibal in 2026?
View the 2026 public holidays for Hannibal on our Holidays page.
What are the GPS coordinates used for the weather forecast in Hannibal?
The weather forecast for Hannibal uses coordinates 39.7082, -91.3587.