Saint Charles, IA Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Charles, IA in one place.
A chance of showers and thunderstorms. Mostly cloudy, with a high near 79. East southeast wind 7 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Saint Charles, IA 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 28, 2026 7:09 PM CDT.
The active forecast window currently covers May 30 to Jun 3, 2026 for Saint Charles, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 28, 2026 7:09 PM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Charles
Monday looks like the warmest upcoming period in Saint Charles at 85 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Saturday at about 7 to 14 mph ESE.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- May 28, 2026 7:09 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- DMX
- Radar station
- KDMX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 1pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.
A chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 83.
Partly cloudy, with a low around 58.
Mostly sunny, with a high near 83.
Partly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Chance Showers And Thunderstorms
|
79°F |
7 to 14 mph
ESE
|
|
Saturday Night
May 30
|
Chance Showers And Thunderstorms
|
61°F |
10 to 14 mph
ESE
|
|
Sunday
May 31
|
Chance Rain Showers
|
82°F |
13 mph
SE
|
|
Sunday Night
May 31
|
Chance Showers And Thunderstorms
|
62°F |
5 to 10 mph
SE
|
|
Monday
Jun 1
|
Chance Showers And Thunderstorms
|
85°F |
7 mph
ESE
|
|
Monday Night
Jun 1
|
Chance Showers And Thunderstorms
|
61°F |
5 to 8 mph
E
|
|
Tuesday
Jun 2
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
83°F |
8 mph
E
|
|
Tuesday Night
Jun 2
|
Partly Cloudy
|
58°F |
5 to 8 mph
ESE
|
|
Wednesday
Jun 3
|
Mostly Sunny
|
83°F |
6 to 9 mph
SSE
|
|
Wednesday Night
Jun 3
|
Partly Cloudy
|
60°F |
5 to 9 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Charles.