Saint Charles, ID Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Charles, ID in one place.
Mostly cloudy. Low around 61, with temperatures rising to around 63 overnight. South southwest wind around 5 mph.
Local Weather Overview
This forecast page for Saint Charles, ID 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 11, 2026 6:38 AM MDT.
The active forecast window currently covers Aug 11 to Aug 17, 2026 for Saint Charles, ID.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 11 to Aug 17, 2026
- Latest sync
- Aug 11, 2026 6:38 AM MDT
- Forecast office
- PIH
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Charles
Tuesday looks like the warmest upcoming period in Saint Charles at 76 degrees F.
Thursday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Friday at about 5 to 13 mph WSW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 11, 2026 6:38 AM MDT
- Coverage
- 7 days
- Time zone
- America/Boise
- Forecast office
- PIH
- Radar station
- KMTX
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 after noon. Partly sunny. High near 76, with temperatures falling to around 74 in the afternoon. Southwest wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Mostly cloudy. Low around 60, with temperatures rising to around 64 overnight. South southwest wind 5 to 8 mph. Chance of precipitation is 20%.
A chance of rain showers before 10am, then a chance of showers and thunderstorms between noon and 2pm, then a slight chance of showers and thunderstorms between 2pm and 3pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 70. Southwest wind 6 to 9 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
A chance of rain after midnight. Mostly cloudy, with a low around 55. North northwest wind around 6 mph. Chance of precipitation is 30%.
Rain likely before noon, then showers and thunderstorms. Cloudy, with a high near 61. Chance of precipitation is 90%.
Showers and thunderstorms likely before midnight, then a chance of rain. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
Showers and thunderstorms likely before noon, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.
A slight chance of showers and thunderstorms before midnight, then a slight chance of rain. Mostly cloudy, with a low around 52. Chance of precipitation is 20%.
A slight chance of rain before noon, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 64. Chance of precipitation is 20%.
Partly cloudy, with a low around 53.
Mostly sunny, with a high near 67.
Partly cloudy, with a low around 55.
Mostly sunny, with a high near 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Aug 11
|
Mostly Cloudy
|
61°F |
5 mph
SSW
|
|
Tuesday
Aug 11
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
76°F |
5 to 10 mph
SW
|
|
Tuesday Night
Aug 11
|
Slight Chance Showers And Thunderstorms
|
60°F |
5 to 8 mph
SSW
|
|
Wednesday
Aug 12
|
Chance Rain Showers
|
70°F |
6 to 9 mph
SW
|
|
Wednesday Night
Aug 12
|
Mostly Cloudy then Chance Light Rain
|
55°F |
6 mph
NNW
|
|
Thursday
Aug 13
|
Light Rain Likely then Showers And Thunderstorms
|
61°F |
7 mph
SW
|
|
Thursday Night
Aug 13
|
Showers And Thunderstorms Likely then Chance Light Rain
|
51°F |
5 mph
WSW
|
|
Friday
Aug 14
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
61°F |
5 to 13 mph
WSW
|
|
Friday Night
Aug 14
|
Slight Chance Showers And Thunderstorms then Slight Chance Light Rain
|
52°F |
5 to 10 mph
SSW
|
|
Saturday
Aug 15
|
Slight Chance Light Rain then Slight Chance Showers And Thunderstorms
|
64°F |
6 to 10 mph
SW
|
|
Saturday Night
Aug 15
|
Partly Cloudy
|
53°F |
5 to 10 mph
SSW
|
|
Sunday
Aug 16
|
Mostly Sunny
|
67°F |
6 to 10 mph
SW
|
|
Sunday Night
Aug 16
|
Partly Cloudy
|
55°F |
5 to 8 mph
SSE
|
|
Monday
Aug 17
|
Mostly Sunny
|
68°F |
6 to 9 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Charles.