Simpson, IL Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Simpson, IL in one place.
Partly sunny, with a high near 83. Northeast wind around 3 mph.
Local Weather Overview
This forecast page for Simpson, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 23, 2026 6:50 AM CDT.
The active forecast window currently covers Jul 24 to Jul 29, 2026 for Simpson, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 29, 2026
- Latest sync
- Jul 23, 2026 6:50 AM CDT
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Simpson
Monday looks like the warmest upcoming period in Simpson at 96 degrees F.
Friday Night is the coolest period ahead with temperatures near 67 degrees F.
The strongest winds are forecast for Monday at about 0 to 8 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 6:50 AM CDT
- Coverage
- 6 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 after 7pm. Mostly cloudy, with a low around 67. East northeast wind around 2 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 87. South wind 0 to 5 mph. Chance of precipitation is 60%.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 72. South southwest wind around 1 mph.
Mostly sunny, with a high near 93. Northwest wind 0 to 3 mph.
Mostly clear, with a low around 73. North wind around 2 mph.
Mostly sunny, with a high near 96. Southwest wind 0 to 8 mph.
Mostly clear, with a low around 76. Southwest wind 2 to 6 mph.
Sunny, with a high near 96. West wind 3 to 8 mph.
Partly cloudy, with a low around 73. North wind 1 to 6 mph.
Mostly sunny, with a high near 92. North wind 1 to 6 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Partly Sunny
|
83°F |
3 mph
NE
|
|
Friday Night
Jul 24
|
Showers And Thunderstorms Likely
|
67°F |
2 mph
ENE
|
|
Saturday
Jul 25
|
Showers And Thunderstorms Likely
|
87°F |
0 to 5 mph
S
|
|
Saturday Night
Jul 25
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
72°F |
1 mph
SSW
|
|
Sunday
Jul 26
|
Mostly Sunny
|
93°F |
0 to 3 mph
NW
|
|
Sunday Night
Jul 26
|
Mostly Clear
|
73°F |
2 mph
N
|
|
Monday
Jul 27
|
Mostly Sunny
|
96°F |
0 to 8 mph
SW
|
|
Monday Night
Jul 27
|
Mostly Clear
|
76°F |
2 to 6 mph
SW
|
|
Tuesday
Jul 28
|
Sunny
|
96°F |
3 to 8 mph
W
|
|
Tuesday Night
Jul 28
|
Partly Cloudy
|
73°F |
1 to 6 mph
N
|
|
Wednesday
Jul 29
|
Mostly Sunny
|
92°F |
1 to 6 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Simpson.