St. Charles, Idaho Weather
Monsoon storms drench the south. Day 15 of summer. Read this microseason across nine climate regions →
St. Charles weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——83°59°—
- MondayJul 6Light Drizzle20%—85°61°+2°
- TuesdayJul 7Light Drizzle35%0.01″86°57°+1°
- WednesdayJul 8Light Drizzle10%—90°57°+4°
- ThursdayJul 9Overcast——86°56°-4°
- FridayJul 10Clear——91°58°+5°
- SaturdayJul 11Clear——97°62°+6°
AQI 49 (Good), driven by Ozone. AQI down 10 over the last 6 hours (gradual decline).
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:46 PM
- Moonset
- 11:41 AM
- In sign
- ♓︎ Pisces
Monsoon storms drench the south
St. Charles at a glance
- Today vs. normal: 4°F below the seasonal normal for this latitude
- Last frost: April 29 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
15-Day Forecast — St. Charles
- Sun83°59°1%
- Mon85°61°20%
- Tue86°57°35%
- Wed90°57°10%
- Thu86°56°1%
- Fri91°58°0%
- Sat97°62°0%
- Sun100°66°2%
- Mon101°66°5%
- Tue103°69°11%
- Wed104°68°17%
- Thu104°70°16%
- Fri103°65°16%
- Sat103°70°24%
- Sun99°69°26%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
SPC Convective Outlook
Storm Prediction Center — St. Charles
SPC includes St. Charles in the general thunderstorm area tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWTSTMGeneral Thunderstorms
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.
ZIP codes in St. Charles
- 83272