What is the weather in Marissa, IL right now?

The latest observation from Sparta Community-Hunter Field Airport was 54°F and clear, reported at 10/26/2026, 11:15 PM CDT.

What is the high temperature today in Marissa, IL?

The National Weather Service forecast for tuesday calls for a high near 75°F. Mostly Cloudy.

Will it rain in Marissa, IL 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 is the 10-day forecast for Marissa, IL?

The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 3 to Nov 5) come from the NOAA National Blend of Models, with highs of 64°F to 70°F and up to a 34% chance of precipitation. Model guidance this far out often changes.

What time is sunrise and sunset in Marissa, IL today?

Sunrise is about 7:20 AM CDT and sunset is about 6:05 PM CDT (calculated for the center of the area, within a few minutes).

What is the normal October weather in Marissa, IL?

At Sparta 1 W, the 1991 to 2020 normal high in October is 70°F and the normal low is 44°F.

Checked Oct 26, 2026

Marissa, IL Weather

Current conditions, hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Marissa, IL current weather

54°F

Clear

H 75° / L 50°Feels like 54°

Wildfire smoke overhead: light
No rain expected in the next 12 hours

Observed at Sparta Community-Hunter Field Airport (8.4 mi away), 10/26/2026, 11:15 PM CDT

Hourly forecast

NWS, updated 10:26 PM

Now55°
1 AM54°
2 AM53°
3 AM52°
4 AM52°
5 AM51°
6 AM50°
7 AM50°
8 AM51°
9 AM56°
10 AM63°
11 AM67°
12 PM72°
1 PM73°
2 PM74°
3 PM75°
4 PM73°
5 PM73°
6 PM71°
7 PM65°
8 PM63°
9 PM61°
10 PM59°
11 PM57°
Wed12 AM57°
1 AM55°
2 AM55°
3 AM54°
4 AM52°
5 AM52°
6 AM52°
7 AM50°
8 AM52°
9 AM57°
10 AM65°
11 AM70°
12 PM74°
1 PM76°
2 PM78°
3 PM78°
4 PM78°
5 PM76°
6 PM73°
7 PM70°
8 PM67°
9 PM64°
10 PM61°
11 PM60°

10-day forecast

Tap a day for details

Today10/27Low 50°High 75°
Tuesday: Mostly cloudy, with a high near 75. South wind 1 to 7 mph.
Overnight: Mostly cloudy, with a low around 50. South wind around 2 mph.
Mostly Cloudy
Wed10/28Low 53°High 79°
Wednesday: Sunny, with a high near 79. South wind 2 to 8 mph.
Wednesday Night: Clear, with a low around 53. South wind around 6 mph.
Sunny
Thu10/29Low 55°High 82°
Thursday: Sunny, with a high near 82.
Thursday Night: Partly cloudy, with a low around 55.
Sunny
Fri10/3015% chance of precipitationLow 57°High 81°
Friday: Partly sunny, with a high near 81.
Friday Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.
Partly Sunny
Sat10/3145% chance of precipitationLow 57°High 75°
Saturday: A chance of rain showers. Mostly cloudy, with a high near 75. Chance of precipitation is 40%.
Saturday Night: A chance of rain showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Chance Rain Showers
Sun11/126% chance of precipitationLow 57°High 76°
Sunday: A slight chance of rain showers. Mostly cloudy, with a high near 76. Chance of precipitation is 20%.
Sunday Night: A chance of rain showers after midnight. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Slight Chance Rain Showers
Mon11/242% chance of precipitationLow High 75°
Monday: A chance of rain showers. Mostly cloudy, with a high near 75. Chance of precipitation is 40%.
Chance Rain Showers
Model blend
Tue11/3Model blend34% chance of precipitationLow 46°High 70°
Tuesday: Chance of rain. High near 70°. Low that night near 46°. About 0.54 in of precipitation.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Wed11/4Model blend17% chance of precipitationLow 42°High 66°
Wednesday: Partly cloudy, slight chance of rain. High near 66°. Low that night near 42°. About 0.03 in of precipitation.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Thu11/5Model blendLow 40°High 64°
Thursday: Partly cloudy. High near 64°. Low that night near 40°.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 38.253, -89.776 from the NWS LSX office, updated 10/26/2026, 10:26 PM CDT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KBLV (Belleville/Scott AFB, 20 mi), model run 10/26/2026, 9:00 PM CDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

Now55°Partly Cloudy0%2 mph
1 AM54°Mostly Cloudy0%1 mph
2 AM53°Mostly Cloudy0%1 mph
3 AM52°Mostly Cloudy0%2 mph
4 AM52°Mostly Cloudy0%2 mph
5 AM51°Mostly Cloudy0%2 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Line: temperature °F. Bars: chance of precipitation.

TueNow55° 0% Sky 35%2
1 AM54° 0% Sky 51%1
2 AM53° 0% Sky 62%1
3 AM52° 0% Sky 65%2
4 AM52° 0% Sky 66%2
5 AM51° 0% Sky 70%2
6 AM50° 0% Sky 80%1
7 AM50° 0% Sky 73%1
8 AM51° 0% Sky 61%2
9 AM56° 0% Sky 46%2
10 AM63° 0% Sky 63%2
11 AM67° 0% Sky 73%3g8
12 PM72° 0% Sky 68%6
1 PM73° 0% Sky 77%7
2 PM74° 0% Sky 85%7g12
3 PM75° 0% Sky 80%7g12
4 PM73° 0% Sky 86%7
5 PM73° 0% Sky 77%5
6 PM71° 0% Sky 74%3
7 PM65° 2% Sky 66%2
8 PM63° 3% Sky 65%2
9 PM61° 3% Sky 45%2
10 PM59° 2% Sky 43%2
11 PM57° 2% Sky 36%2
Wed 10/2812 AM57° 2% Sky 25%2
1 AM55° 2% Sky 24%2
2 AM55° 2% Sky 28%2
3 AM54° 2% Sky 25%2
4 AM52° 2% Sky 24%2
5 AM52° 3% Sky 15%2
6 AM52° 3% Sky 15%2
7 AM50° 0% Sky 14%2
8 AM52° 0% Sky 11%3
9 AM57° 0% Sky 9%3
10 AM65° 0% Sky 2%3g8
11 AM70° 0% Sky 0%5
12 PM74° 0% Sky 1%6g12
1 PM76° 0% Sky 1%7g12
2 PM78° 0% Sky 16%8
3 PM78° 0% Sky 14%8
4 PM78° 0% Sky 11%8
5 PM76° 0% Sky 9%7
6 PM73° 0% Sky 8%6
7 PM70° 0% Sky 6%5
8 PM67° 0% Sky 5%3g8
9 PM64° 0% Sky 3%3g8
10 PM61° 0% Sky 2%3g9
11 PM60° 0% Sky 2%3g10
Thu 10/2912 AM59° 0% Sky 2%5g10
1 AM58° 0% Sky 2%5g12
2 AM57° 0% Sky 2%5g12
3 AM56° 0% Sky 3%6g12
4 AM55° 0% Sky 3%6g12
5 AM54° 0% Sky 5%6g12
6 AM53° 0% Sky 7%6g12
7 AM54° 0% Sky 9%6g12
8 AM58° 0% Sky 8%6g12
9 AM62° 0% Sky 6%7g13
10 AM67° 0% Sky 5%7g13
11 AM72° 0% Sky 7%7g13
12 PM76° 0% Sky 9%8g13
1 PM79° 0% Sky 11%8g13
2 PM82° 0% Sky 11%8g13
3 PM82° 0% Sky 10%8
4 PM82° 0% Sky 10%7
5 PM80° 0% Sky 14%6
6 PM77° 0% Sky 17%5
7 PM73° 0% Sky 22%3
8 PM70° 0% Sky 22%3
9 PM67° 0% Sky 22%3
10 PM64° 0% Sky 22%3
11 PM62° 0% Sky 22%3
Fri 10/3012 AM61° 0% Sky 22%2
1 AM60° 0% Sky 46%2
2 AM59° 0% Sky 46%2
3 AM58° 0% Sky 46%2
4 AM57° 0% Sky 46%2
5 AM55° 0% Sky 46%2
6 AM55° 0% Sky 46%2
7 AM55° 1% Sky 66%2
8 AM58° 1% Sky 66%2
9 AM62° 1% Sky 66%3
10 AM67° 1% Sky 66%3
11 AM71° 1% Sky 66%3g8
12 PM75° 1% Sky 66%5
1 PM78° 0% Sky 64%5
2 PM80° 0% Sky 64%6
3 PM81° 0% Sky 64%6
4 PM80° 0% Sky 64%6
5 PM78° 0% Sky 64%5
6 PM75° 0% Sky 64%3
7 PM72° 1% Sky 72%2
8 PM69° 1% Sky 72%1
9 PM66° 1% Sky 72%1
10 PM64° 1% Sky 72%1
11 PM63° 1% Sky 72%1
Sat 10/3112 AM62° 1% Sky 72%1
1 AM61° 15% Sky 76%1
2 AM60° 15% Sky 76%1
3 AM60° 15% Sky 76%1
4 AM59° 15% Sky 76%1
5 AM58° 15% Sky 76%1
6 AM57° 15% Sky 76%1
7 AM57° 15% Sky 88%1
8 AM59° 15% Sky 88%1
9 AM62° 15% Sky 88%2
10 AM65° 15% Sky 88%2
11 AM68° 15% Sky 88%3
12 PM71° 15% Sky 88%3g8
1 PM73° 36%0.02"Sky 71%5
2 PM74° 36%0.02"Sky 71%5
3 PM75° 36%0.02"Sky 71%5
4 PM74° 36%0.02"Sky 71%5
5 PM73° 36%0.02"Sky 71%5
6 PM71° 36%0.02"Sky 71%3g8
7 PM69° 34%0.01"Sky 75%3
8 PM67° 34%0.01"Sky 75%3
9 PM65° 34%0.01"Sky 75%2g7
10 PM63° 34%0.01"Sky 75%2g7
11 PM62° 34%0.01"Sky 75%2g7
Sun 11/112 AM61° 34%0.01"Sky 75%1g6
1 AM61° 45%0.03"Sky 80%1g6
1 AM60° 45%0.03"Sky 80%1g6
2 AM60° 45%0.03"Sky 80%1g6
3 AM59° 45%0.03"Sky 80%1g6
4 AM58° 45%0.03"Sky 80%1g6
5 AM58° 45%0.03"Sky 80%1
6 AM59° 21%0.01"Sky 79%1
7 AM61° 21%0.01"Sky 79%2
8 AM64° 21%0.01"Sky 79%2
9 AM67° 21%0.01"Sky 79%3
10 AM69° 21%0.01"Sky 79%5
11 AM71° 21%0.01"Sky 79%6
12 PM73° 15% Sky 65%6
1 PM74° 15% Sky 65%6
2 PM75° 15% Sky 65%6
3 PM75° 15% Sky 65%5
4 PM74° 15% Sky 65%3g8
5 PM72° 15% Sky 65%2
6 PM70° 8% Sky 71%1
7 PM68° 8% Sky 71%1
8 PM66° 8% Sky 71%1
9 PM64° 8% Sky 71%1
10 PM63° 8% Sky 71%1
11 PM62° 8% Sky 71%2
Mon 11/212 AM62° 26% Sky 73%2
1 AM61° 26% Sky 73%2
2 AM61° 26% Sky 73%2g7
3 AM60° 26% Sky 73%2g7
4 AM59° 26% Sky 73%2g7
5 AM59° 26% Sky 73%3g8
6 AM59° 42%0.01"Sky 77%3g8
7 AM61° 42%0.01"Sky 77%5
8 AM63° 42%0.01"Sky 77%5
9 AM66° 42%0.01"Sky 77%6
10 AM69° 42%0.01"Sky 77%7g12

Temperature °F · chance of precipitation · amount in inches (T = trace) · sky cover · wind and gusts (g) in mph

NWS hourly forecast updated 10/26/2026, 10:26 PM CDT

Radar and satellite

National radar

NEXRAD (last 50 min) and GOES

Latest

Nearby hazards

Illinois hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

Severe storm outlook today:No thunderstorm risk area over this locationOutlook 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 county

St. Clair County, week of 10/20/2026

100% of the county is abnormally dry. No drought.

Frequently asked questions

What is the weather in Marissa, IL right now?: The latest observation from Sparta Community-Hunter Field Airport was 54°F and clear, reported at 10/26/2026, 11:15 PM CDT.
What is the high temperature today in Marissa, IL?: The National Weather Service forecast for tuesday calls for a high near 75°F. Mostly Cloudy.
Will it rain in Marissa, IL 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 is the 10-day forecast for Marissa, IL?: The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 3 to Nov 5) come from the NOAA National Blend of Models, with highs of 64°F to 70°F and up to a 34% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Marissa, IL today?: Sunrise is about 7:20 AM CDT and sunset is about 6:05 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Marissa, IL?: At Sparta 1 W, the 1991 to 2020 normal high in October is 70°F and the normal low is 44°F.

Sun and moon

Local time, center of the area

Sunrise: 7:20 AM
Sunset: 6:05 PM
Daylight: 10 hr 45 min
Moon: Waning Gibbous 99% lit

First light (civil dawn): 6:53 AM
Last light (civil dusk): 6:32 PM
Moonrise: 6:45 PM
Moonset: 9:07 AM

Normal October weather

Climate

Normal October high 70°, low 44°, precipitation 3.34 in for the month. 1991 to 2020 normals at Sparta 1 W, 10 mi away.

Other places nearby

Data sources

National Weather Service APINOAA
National Blend of Models (NBM) text guidanceNOAA National Weather Service
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
Hazard Mapping System Smoke AnalysisNOAA NESDIS Office of Satellite and Product Operations
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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About this data

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