Saint Charles, AR Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Charles, AR in one place.
Mostly sunny, with a high near 96. Heat index values as high as 104. North northeast wind around 5 mph.
Local Weather Overview
This forecast page for Saint Charles, AR 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: Aug 23, 2026 4:20 PM CDT.
The active forecast window currently covers Aug 23 to Aug 29, 2026 for Saint Charles, AR.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 23 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 4:20 PM CDT
- Forecast office
- LZK
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Charles
Tuesday looks like the warmest upcoming period in Saint Charles at 97 degrees F.
Thursday Night is the coolest period ahead with temperatures near 72 degrees F.
The strongest winds are forecast for This Afternoon at about 5 mph NNE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 4:20 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LZK
- Radar station
- KLZK
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 74. Heat index values as high as 99. East northeast wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms between 7am and 10am, then showers and thunderstorms likely between 10am and noon, then a chance of showers and thunderstorms between noon and 4pm. Mostly cloudy, with a high near 90. Heat index values as high as 97. East southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of showers and thunderstorms between 2am and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 73. East southeast wind around 5 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 97. South wind around 5 mph. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 75. Southeast wind around 5 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 97. South wind around 5 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. South southeast wind 0 to 5 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 96. West northwest wind 0 to 5 mph. Chance of precipitation is 40%.
Mostly clear, with a low around 72.
Sunny, with a high near 96.
Mostly clear, with a low around 72.
Sunny, with a high near 97.
Mostly clear, with a low around 73.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Aug 23
|
Mostly Sunny
|
96°F |
5 mph
NNE
|
|
Tonight
Aug 23
|
Partly Cloudy
|
74°F |
5 mph
ENE
|
|
Monday
Aug 24
|
Chance Showers And Thunderstorms
|
90°F |
5 mph
ESE
|
|
Monday Night
Aug 24
|
Mostly Cloudy then Slight Chance Showers And Thunderstorms
|
73°F |
5 mph
ESE
|
|
Tuesday
Aug 25
|
Chance Showers And Thunderstorms
|
97°F |
5 mph
S
|
|
Tuesday Night
Aug 25
|
Mostly Clear then Slight Chance Showers And Thunderstorms
|
75°F |
5 mph
SE
|
|
Wednesday
Aug 26
|
Chance Showers And Thunderstorms
|
97°F |
5 mph
S
|
|
Wednesday Night
Aug 26
|
Chance Showers And Thunderstorms
|
73°F |
0 to 5 mph
SSE
|
|
Thursday
Aug 27
|
Chance Showers And Thunderstorms then Mostly Sunny
|
96°F |
0 to 5 mph
WNW
|
|
Thursday Night
Aug 27
|
Mostly Clear
|
72°F |
0 to 5 mph
N
|
|
Friday
Aug 28
|
Sunny
|
96°F |
0 to 5 mph
NE
|
|
Friday Night
Aug 28
|
Mostly Clear
|
72°F |
0 to 5 mph
ESE
|
|
Saturday
Aug 29
|
Sunny
|
97°F |
0 to 5 mph
SE
|
|
Saturday Night
Aug 29
|
Mostly Clear
|
73°F |
0 to 5 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Charles.