Massac County, IL Weather Forecast
County weather hub
Showers And Thunderstorms Likely
Compare major city weather across Massac County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Showers and thunderstorms likely. Partly sunny, with a high near 83. South wind around 6 mph.
County Weather Overview
This county weather page brings together forecast coverage for Massac County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Massac County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 20 to May 21, 2026
- Latest sync
- May 14, 2026 10:52 PM CDT
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Massac County
Wednesday looks like the warmest upcoming period in Massac County at 83 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Wednesday at about 6 mph S.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- May 14, 2026 10:52 PM CDT
- Coverage
- 2 days
- Time zone
- America/Chicago
- Forecast office
- PAH
- Radar station
- KPAH
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Southeast wind 1 to 5 mph.
A chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81. South southeast wind 2 to 6 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
May 20
|
Showers And Thunderstorms Likely
|
83°F |
6 mph
S
|
|
Wednesday Night
May 20
|
Showers And Thunderstorms Likely
|
62°F |
1 to 5 mph
SE
|
|
Thursday
May 21
|
Chance Showers And Thunderstorms
|
81°F |
2 to 6 mph
SSE
|
Major City Forecasts
Live forecast snapshots for major cities across Massac County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Massac County.
Largest mapped city population in this region: 5,885.
