Weather for Sumner, Missouri
Current Weather
Five Day Weather Forecast
Thu
H: 68°F
L: 55°F
Fri
H: 58°F
L: 56°F
Sat
H: 74°F
L: 58°F
Sun
H: 79°F
L: 58°F
Mon
H: 78°F
L: 62°F
Air Quality
Nitrogen Dioxide: 3.35 μg/m3
Sulphur Dioxide: 2.35 μg/m3
Ozone: 67 μg/m3
Astronomical
Sun Transit: 1:09 PM
Sunset: 8:27 PM
Daylight: 14 hrs 33 mins
Moon Transit: 6:14 PM
Moonset: 12:56 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%
Best Times for Fishing or Hunting
Major Periods
4:50 AM - 7:20 AM5:44 PM - 8:14 PM
Minor Periods
10:17 AM - 11:47 AM12:26 AM - 1:56 AM
Action Rating: 3 out of 5
Flood Warning issued May 20 at 8:23PM CDT until May 23 at 3:10AM CDT by NWS Kansas City/Pleasant Hill MO
Effective: Wed May 20, 2026, 8:23 PM
Expires: Thu May 21, 2026, 8:30 PM
...The Flood Warning is extended for the following rivers in Missouri... Missouri River at Boonville affecting Howard, Boone, Moniteau and Cooper Counties. Missouri River At Miami affecting Saline, Carroll and Chariton Counties. Missouri River at Waverly affecting Saline, Carroll and Lafayette Counties. Missouri River at Napoleon affecting Jackson, Ray and Lafayette Counties. Missouri River at Glasgow affecting Saline, Howard and Chariton Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Missouri River at Miami. * WHEN...From this evening to late Friday night. * ADDITIONAL DETAILS... - At 7:09 PM CDT Wednesday the stage was 19.5 feet. - Forecast...The river is expected to rise to a crest of 20.4 feet tomorrow morning. It will then fall below flood stage early Friday morning. - Flood stage is 18.0 feet. - http://www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. 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 www.weather.gov/kc/.
Flood Warning issued May 20 at 8:23PM CDT until May 23 at 7:00PM CDT by NWS Kansas City/Pleasant Hill MO
Effective: Wed May 20, 2026, 8:23 PM
Expires: Thu May 21, 2026, 8:30 PM
...The Flood Warning is extended for the following rivers in Missouri... Missouri River at Boonville affecting Howard, Boone, Moniteau and Cooper Counties. Missouri River At Miami affecting Saline, Carroll and Chariton Counties. Missouri River at Waverly affecting Saline, Carroll and Lafayette Counties. Missouri River at Napoleon affecting Jackson, Ray and Lafayette Counties. Missouri River at Glasgow affecting Saline, Howard and Chariton Counties. * WHAT...Minor flooding is forecast. * WHERE...Missouri River at Glasgow. * WHEN...Until Saturday evening. * IMPACTS...At 27.0 feet, Many agricultural levees are overtopped. Widespread flooding of rural areas occurs. Secondary roads and homes behind levees may be inundated. * ADDITIONAL DETAILS... - At 7:30 PM CDT Wednesday the stage was 24.4 feet. - Forecast...The river is expected to rise above flood stage late this evening to a crest of 26.8 feet early tomorrow afternoon. It will then fall below flood stage Friday evening. - Flood stage is 25.0 feet. - http://www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. 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 www.weather.gov/kc/.
Flood Warning issued May 20 at 7:59PM CDT until May 25 at 3:31AM CDT by NWS Kansas City/Pleasant Hill MO
Effective: Wed May 20, 2026, 7:59 PM
Expires: Thu May 21, 2026, 8:00 PM
...The Flood Warning continues for the following rivers in Missouri... Grand River near Gallatin affecting Livingston and Daviess Counties. Grand River near Pattonsburg affecting Daviess and Gentry Counties. Grand River near Sumner affecting Livingston, Carroll, Linn and Chariton Counties. Grand River near Brunswick affecting Carroll and Chariton Counties. Grand River near Chillicothe affecting Livingston and Linn Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Grand River near Sumner. * WHEN...Until late Sunday night. * IMPACTS...At 37.0 feet, State Highway 139 floods a half mile east of Sumner. * ADDITIONAL DETAILS... - At 7:45 PM CDT Wednesday the stage was 37.0 feet. - Forecast...The river is expected to fall below flood stage early Sunday morning and continue falling to 10.6 feet Monday evening. - Flood stage is 26.0 feet. - http://www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. 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 www.weather.gov/kc/.
Flood Warning issued May 20 at 7:59PM CDT until May 25 at 7:27AM CDT by NWS Kansas City/Pleasant Hill MO
Effective: Wed May 20, 2026, 7:59 PM
Expires: Thu May 21, 2026, 8:00 PM
...The Flood Warning continues for the following rivers in Missouri... Grand River near Gallatin affecting Livingston and Daviess Counties. Grand River near Pattonsburg affecting Daviess and Gentry Counties. Grand River near Sumner affecting Livingston, Carroll, Linn and Chariton Counties. Grand River near Brunswick affecting Carroll and Chariton Counties. Grand River near Chillicothe affecting Livingston and Linn Counties. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Grand River near Brunswick. * WHEN...Until Monday morning. * IMPACTS...At 22.0 feet, Low-lying areas along the east bank of the Grand River near the U.S. Highway 24 bridge begin to flood. * ADDITIONAL DETAILS... - At 5:45 PM CDT Wednesday the stage was 22.1 feet. - Forecast...The river is expected to rise to a crest of 23.5 feet early tomorrow afternoon. It will then fall below flood stage Sunday morning. - Flood stage is 19.0 feet. - http://www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. 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 www.weather.gov/kc/.
Flood Warning issued May 20 at 7:59PM CDT until May 23 at 8:42PM CDT by NWS Kansas City/Pleasant Hill MO
Effective: Wed May 20, 2026, 7:59 PM
Expires: Thu May 21, 2026, 8:00 PM
...The Flood Warning continues for the following rivers in Missouri... Grand River near Gallatin affecting Livingston and Daviess Counties. Grand River near Pattonsburg affecting Daviess and Gentry Counties. Grand River near Sumner affecting Livingston, Carroll, Linn and Chariton Counties. Grand River near Brunswick affecting Carroll and Chariton Counties. Grand River near Chillicothe affecting Livingston and Linn Counties. * WHAT...Moderate flooding is occurring and moderate flooding is forecast. * WHERE...Grand River near Chillicothe. * WHEN...Until Saturday evening. * IMPACTS...At 35.0 feet, U.S. Highway 65 south of Chillicothe is threatened by flood water. * ADDITIONAL DETAILS... - At 6:45 PM CDT Wednesday the stage was 33.0 feet. - Forecast...The river is expected to fall below flood stage Friday evening and continue falling to 7.5 feet Monday evening. - Flood stage is 24.0 feet. - http://www.weather.gov/safety/flood
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. 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 www.weather.gov/kc/.
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.77 μg/m3
Sulphur Dioxide: 1.88 μg/m3
Ozone: 51.32 μg/m3
Astronomical
Sun Transit: 1:09 PM
Sunset: 8:27 PM
Daylight: 14 hrs 33 mins
Moon Transit: 6:14 PM
Moonset: 12:56 AM
Moon Phase: Waxing Crescent
Moon Illumination: 23.2%
Best Times for Fishing or Hunting
Major Periods
4:50 AM - 7:20 AM5:44 PM - 8:14 PM
Minor Periods
10:17 AM - 11:47 AM12:26 AM - 1:56 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 5.19 μg/m3
Sulphur Dioxide: 2.53 μg/m3
Ozone: 56.32 μg/m3
Astronomical
Sun Transit: 1:09 PM
Sunset: 8:27 PM
Daylight: 14 hrs 34 mins
Moon Transit: 7:05 PM
Moonset: 1:30 AM
Moon Phase: Waxing Crescent
Moon Illumination: 33.4%
Best Times for Fishing or Hunting
Major Periods
5:43 AM - 8:13 AM6:35 PM - 9:05 PM
Minor Periods
11:30 AM - 1:00 PM1:00 AM - 2:30 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 7.73 μg/m3
Sulphur Dioxide: 1.82 μg/m3
Ozone: 46.6 μg/m3
Astronomical
Sun Transit: 1:09 PM
Sunset: 8:28 PM
Daylight: 14 hrs 36 mins
Moon Transit: 7:51 PM
Moonset: 1:58 AM
Moon Phase: First Quarter
Moon Illumination: 44.4%
Best Times for Fishing or Hunting
Major Periods
6:31 AM - 9:01 AM7:21 PM - 9:51 PM
Minor Periods
12:39 AM - 2:09 PM1:28 AM - 2:58 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 12.95 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 58.36 μg/m3
Astronomical
Sun Transit: 1:10 PM
Sunset: 8:29 PM
Daylight: 14 hrs 38 mins
Moon Transit: 8:34 PM
Moonset: 2:22 AM
Moon Phase: First Quarter
Moon Illumination: 55.7%
Best Times for Fishing or Hunting
Major Periods
7:16 AM - 9:46 AM8:04 PM - 10:34 PM
Minor Periods
1:45 PM - 3:15 PM1:52 AM - 3:22 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 15.92 μg/m3
Sulphur Dioxide: 1.47 μg/m3
Ozone: 46.38 μg/m3
Astronomical
Sun Transit: 1:10 PM
Sunset: 8:30 PM
Daylight: 14 hrs 39 mins
Moon Transit: 9:16 PM
Moonset: 2:44 AM
Moon Phase: First Quarter
Moon Illumination: 66.7%
Best Times for Fishing or Hunting
Major Periods
7:58 AM - 10:28 AM8:46 PM - 11:16 PM
Minor Periods
2:48 PM - 4:18 PM2:14 AM - 3:44 AM
Action Rating: 3 out of 5