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Mercer, MO 64661 Weather
Today: Slight Chance Showers And Thunderstorms then Mostly Sunny, high 76°F, low 59°F. Hourly and 7-day forecast from the National Weather Service. Times are local (CDT).
Mercer, MO 64661 current weather
56°F
Slight Chance Rain Showers
Forecast for this hour. No recent report from a nearby station.
H 76° / L 59°
No rain expected in the next 12 hours
No recent station report. NWS hourly forecast updated 10/28/2026, 4:11 AM PT
Hourly forecast
NWS, updated 10/28/2026, 4:11 AM PT
7-day forecast
Tap a day for details
Today10/2828% chance of precipitationLow 59°High 76°
Today: A slight chance of rain showers before 9am, then a slight chance of showers and thunderstorms between 9am and 10am. Mostly sunny, with a high near 76. South wind 7 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
Tonight: A chance of showers and thunderstorms between 10pm and 1am, then a chance of showers and thunderstorms between 1am and 2am, then a slight chance of showers and thunderstorms between 2am and 5am. Partly cloudy, with a low around 59. South southwest wind 6 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Slight Chance Showers And Thunderstorms then Mostly SunnyThu10/2966% chance of precipitationLow 54°High 72°
Thursday: Mostly sunny, with a high near 72. North northeast wind 5 to 8 mph.
Thursday Night: Rain showers likely between 1am and 4am, then showers and thunderstorms likely. Partly cloudy, with a low around 54. East wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly SunnyFri10/3076% chance of precipitationLow 55°High 71°
Friday: Showers and thunderstorms. Mostly cloudy, with a high near 71. East southeast wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night: Showers and thunderstorms likely. Cloudy, with a low around 55. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Showers And ThunderstormsSat10/3154% chance of precipitationLow 54°High 68°
Saturday: A chance of rain showers. Cloudy, with a high near 68. Chance of precipitation is 50%.
Saturday Night: A chance of rain showers. Cloudy, with a low around 54. Chance of precipitation is 50%.
Chance Rain ShowersSun11/121% chance of precipitationLow 55°High 68°
Sunday: A slight chance of rain showers before noon. Mostly cloudy, with a high near 68.
Sunday Night: A slight chance of rain showers after midnight. Mostly cloudy, with a low around 55.
Slight Chance Rain Showers then Mostly CloudyMon11/269% chance of precipitationLow 53°High 67°
Monday: A chance of rain showers before noon, then showers and thunderstorms likely. Cloudy, with a high near 67. Chance of precipitation is 70%.
Monday Night: Showers and thunderstorms likely. Cloudy, with a low around 53. Chance of precipitation is 70%.
Showers And Thunderstorms LikelyTue11/359% chance of precipitationLow 48°High 64°
Tuesday: Rain showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
Tuesday Night: A chance of rain showers. Mostly cloudy, with a low around 48.
Rain Showers Likely
Forecast for 40.526, -93.518 from the NWS EAX office, updated 10/28/2026, 4:11 AM PT · Official forecast on weather.gov
From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.
Next 6 hours
NWS hourly forecast
- Now56°Slight Chance Rain Showers16%7 mph
- 7 AM57°Slight Chance Rain Showers17%8 mph
- 8 AM57°Slight Chance Rain Showers17%8 mph
- 9 AM58°Slight Chance Showers And Thunderstorms16%10 mph
- 10 AM63°Sunny14%10 mph
- 11 AM67°Mostly Sunny12%13 mph
Hourly details
Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShowHide
NWS hourly forecast updated 10/28/2026, 4:11 AM PT
Radar and satellite
National radarNEXRAD (last 50 min) and GOES
Nearby hazards
Missouri hazardsSevere storm and flash flood outlooks, expected rain, river flooding and wildfires near this area
- Severe storm outlook today:General thunderstormsOutlook map
- Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
- River gauges within 40 miles at or above flood stage: None reported
- Active wildfires within 50 miles: None reported
Drought
By countyMercer County, week of 10/20/2026
No drought or abnormal dryness in this county.
Sun and moon
Local time, center of the area
- Sunrise
- 7:39 AM
- Sunset
- 6:15 PM
- Daylight
- 10 hr 36 min
- Moon
- Waning Gibbous 94% lit
- First light (civil dawn)
- 7:11 AM
- Last light (civil dusk)
- 6:43 PM
- Moonrise
- 7:41 PM
- Moonset
- 10:46 AM
Normal October weather
ClimateNormal October high 65°, low 42°, precipitation 3.29 in for the month. 1991 to 2020 normals at Princeton, 9 mi away.
Other places nearby
Data sources
- National Weather Service APINOAA
- Convective Outlooks and Storm ReportsNOAA Storm Prediction Center
- Excessive Rainfall Outlook and Quantitative Precipitation ForecastsNOAA Weather Prediction Center
- National Water Prediction ServiceNOAA National Weather Service
- WFIGS Current Wildland Fire IncidentsNational Interagency Fire Center
- UV Index Forecast (Envirofacts)U.S. Environmental Protection Agency and NOAA
- AirNowU.S. Environmental Protection Agency
- NWS HeatRisk (experimental)NOAA National Weather Service
- U.S. Drought MonitorNational Drought Mitigation Center, USDA and NOAA
- BEACON 2.0 Beach Advisory and Closing On-line NotificationU.S. Environmental Protection Agency
- U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information
- Tides & Currents (CO-OPS API)NOAA Center for Operational Oceanographic Products and Services
- NEXRAD radar tilesIowa Environmental Mesonet, Iowa State University
- GOES-East and GOES-West GeoColor imageryNOAA NESDIS Center for Satellite Applications and Research
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Frequently asked questions
- What is the high temperature today in Mercer, MO 64661?
- The National Weather Service forecast for today calls for a high near 76°F. Slight Chance Showers And Thunderstorms then Mostly Sunny.
- Will it rain in Mercer, MO 64661 in the next 24 hours?
- The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
- What time is sunrise and sunset in Mercer, MO 64661 today?
- Sunrise is about 7:39 AM CDT and sunset is about 6:15 PM CDT (calculated for the center of the area, within a few minutes).
- What is the normal October weather in Mercer, MO 64661?
- At Princeton, the 1991 to 2020 normal high in October is 65°F and the normal low is 42°F.
About this data
Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.
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