Saint Charles, MN Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Charles, MN in one place.
A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms between 10am and 1pm. Partly sunny, with a high near 81. Southeast wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Saint Charles, MN 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 10, 2026 1:37 AM CDT.
The active forecast window currently covers Aug 11 to Aug 16, 2026 for Saint Charles, MN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 11 to Aug 16, 2026
- Latest sync
- Aug 10, 2026 1:37 AM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Charles
Tuesday looks like the warmest upcoming period in Saint Charles at 81 degrees F.
Thursday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Saturday at about 8 mph SE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 10, 2026 1:37 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ARX
- Radar station
- KARX
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 after 1am. Partly cloudy, with a low around 65. South wind around 3 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 81. North wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 62. North wind around 6 mph.
Partly sunny, with a high near 75. Northeast wind around 6 mph.
Mostly cloudy, with a low around 59. Northeast wind around 5 mph.
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 73. East wind around 7 mph. Chance of precipitation is 20%.
A chance of rain showers. Mostly cloudy, with a low around 59. Southeast wind around 7 mph. Chance of precipitation is 30%.
A chance of rain showers. Partly sunny, with a high near 72. Southeast wind around 8 mph. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a low around 60. Southeast wind around 6 mph. Chance of precipitation is 30%.
A slight chance of rain showers before 1pm. Mostly cloudy, with a high near 73. Northwest wind around 7 mph. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Aug 11
|
Chance Showers And Thunderstorms
|
81°F |
6 mph
SE
|
|
Tuesday Night
Aug 11
|
Partly Cloudy then Chance Showers And Thunderstorms
|
65°F |
3 mph
S
|
|
Wednesday
Aug 12
|
Chance Showers And Thunderstorms
|
81°F |
3 to 7 mph
N
|
|
Wednesday Night
Aug 12
|
Partly Cloudy
|
62°F |
6 mph
N
|
|
Thursday
Aug 13
|
Partly Sunny
|
75°F |
6 mph
NE
|
|
Thursday Night
Aug 13
|
Mostly Cloudy
|
59°F |
5 mph
NE
|
|
Friday
Aug 14
|
Mostly Sunny then Slight Chance Rain Showers
|
73°F |
7 mph
E
|
|
Friday Night
Aug 14
|
Chance Rain Showers
|
59°F |
7 mph
SE
|
|
Saturday
Aug 15
|
Chance Rain Showers
|
72°F |
8 mph
SE
|
|
Saturday Night
Aug 15
|
Chance Rain Showers
|
60°F |
6 mph
SE
|
|
Sunday
Aug 16
|
Slight Chance Rain Showers
|
73°F |
7 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Charles.