Weather Alert
Marissa Weather Warning NWS WEATHER ALERT FOR THE MARISSA, IL AREA - SHORTTERM FORECAST Issued: 1153 AM CDT Tue Sep 15 2026 Marissa Weather Warning

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Marissa, IL Weather Forecast

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Marissa, IL Weather Forecast

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Marissa IL weather - Clear - 80°F
Clear
80°F
Updated 10:17 pm
Feels Like 89°F
Humidity 75%
Wind N 0 mph
Barometer  30.11 in
Dew Point 72°F
Marissa IL weather - Clear - 27°C
Clear
27°C
Updated 10:17 pm
Feels Like 32°C
Humidity 75%
Wind N 0 km/h
Barometer  101.9 kPa
Dew Point 22°C
WX Settings

Marissa Weather Forecast

TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY
Marissa, IL Weather - Tonight Chance Of T-Storm Marissa, IL Weather - Wednesday Chance Of T-Storm Marissa, IL Weather - Wednesday Night Chance Of T-Storm Marissa, IL Weather - Thursday Sunny Marissa, IL Weather - Thursday Night Partly Cloudy Marissa, IL Weather - Friday Mostly Clear Marissa, IL Weather - Friday Night Mostly Clear Marissa, IL Weather - Saturday Mostly Sunny Marissa, IL Weather - Saturday Night Chance Of T-Storm Marissa, IL Weather - Sunday Chance Of T-Storm Marissa, IL Weather - Sunday Night Chance Of T-Storm Marissa, IL Weather - Monday Chance Of Showers
Chance of T-Storm Chance of T-Storm Chance of T-Storm Sunny Partly Cloudy Mostly Clear Mostly Clear Mostly Sunny Chance of T-Storm Chance of T-Storm Chance of T-Storm Chance of Showers
Lo: 75°FLo: 24°C Hi: 95°FHi: 35°C
 Lo: 75°FLo: 24°C Hi: 99°FHi: 37°C
 Lo: 71°FLo: 22°C Hi: 95°FHi: 35°C
Lo: 71°FLo: 22°C		 Hi: 95°FHi: 35°C
Lo: 71°FLo: 22°C		 Hi: 95°FHi: 35°C
 Lo: 71°FLo: 22°C Hi: 91°FHi: 33°C
 Lo: 69°FLo: 21°C Hi: 81°FHi: 27°C
POP: 50% POP: 50% POP: 20% POP: 30% POP: 40% POP: 40% POP: 40%
POP = Probability of Precipitation.
Weather Outlook Updated: 918 PM CDT Tue Sep 15 2026 Marissa, IL Weather - WeatherWorld.com

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Issued: 653 PM CDT Tue Sep 15 2026

Key Messages

  • A late season heat wave with peak heat index values of 100-105F+ will continue through at least Friday along/south of I-70.
  • Widespread showers and thunderstorms are forecast tonight, mainly across northeast Missouri and west-central Illinois where locally heavy rainfall is possible. A few may also be strong to severe with damaging winds the main threat through this evening.

Aviation

/00Z TAFS THROUGH 06Z THURSDAY/... Issued at 653 PM CDT Tue Sep 15 2026

A cold front moving through the a...