Saint Charles, AR Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Charles, AR in one place.
Sunny, with a high near 89. South southeast wind 0 to 10 mph, with gusts as high as 20 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: May 17, 2026 9:38 AM CDT.
The active forecast window currently covers May 17 to May 23, 2026 for Saint Charles, AR.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 17 to May 23, 2026
- Latest sync
- May 17, 2026 9:38 AM 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 90 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Monday at about 10 to 15 mph S.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- May 17, 2026 9:38 AM 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
A slight chance of showers and thunderstorms between 7pm and 11pm. Mostly cloudy, with a low around 72. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Partly sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph.
A chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 69. South southwest wind 0 to 5 mph. Chance of precipitation is 70%.
Showers and thunderstorms. Mostly cloudy, with a high near 80. North northeast wind 0 to 5 mph. Chance of precipitation is 90%.
Showers and thunderstorms. Mostly cloudy, with a low around 64. Northeast wind around 5 mph. Chance of precipitation is 90%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 77. Northeast wind around 5 mph. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Rain showers likely before 1pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
May 17
|
Sunny
|
89°F |
0 to 10 mph
SSE
|
|
Tonight
May 17
|
Slight Chance Showers And Thunderstorms then Mostly Cloudy
|
72°F |
10 mph
S
|
|
Monday
May 18
|
Partly Sunny
|
89°F |
10 to 15 mph
S
|
|
Monday Night
May 18
|
Chance Showers And Thunderstorms
|
73°F |
5 to 10 mph
S
|
|
Tuesday
May 19
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
90°F |
5 to 10 mph
S
|
|
Tuesday Night
May 19
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
69°F |
0 to 5 mph
SSW
|
|
Wednesday
May 20
|
Showers And Thunderstorms
|
80°F |
0 to 5 mph
NNE
|
|
Wednesday Night
May 20
|
Showers And Thunderstorms
|
64°F |
5 mph
NE
|
|
Thursday
May 21
|
Showers And Thunderstorms Likely
|
77°F |
5 mph
NE
|
|
Thursday Night
May 21
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
65°F |
0 to 5 mph
ENE
|
|
Friday
May 22
|
Showers And Thunderstorms Likely
|
79°F |
0 to 5 mph
SE
|
|
Friday Night
May 22
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
66°F |
0 to 5 mph
S
|
|
Saturday
May 23
|
Rain Showers Likely
|
80°F |
0 to 5 mph
SSW
|
|
Saturday Night
May 23
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
66°F |
0 to 5 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Charles.