Weather in St. Charles, IL
St. Charles, Sunday, 9 August, 00:50
Clear. Feels like 65°. High 88°, low 62°.
Two-week outlook for St. Charles, IL: week one averages a high of 79.6° and week two 73.4°, so week two runs 6.2° cooler than week one. Around 1.2 inches of precipitation are expected over the 14 days, across 2 wet days. The nearest weekend, August 9: 88°, with precipitation.
Week one vs week two
| Week | High | Low | Precipitation | Vs normal |
|---|---|---|---|---|
| 1st (August 9 – August 15) | 79.6° | 63.7° | 1.2 in / 2 d | — |
| 2nd (August 16 – August 22) | 73.4° | 58.1° | 0.0 in / 0 d | — |
Weekend weather
0.53St. Charles, Monday, 10 August
Heavy rain. High 87°, low 70°.
0.03St. Charles, Tuesday, 11 August
Light rain. High 84°, low 68°.
0.02St. Charles, Wednesday, 12 August
Light rain. High 79°, low 66°.
0St. Charles, Thursday, 13 August
Overcast. High 74°, low 60°.
0
St. Charles, Friday, 14 August
Mostly clear. High 76°, low 58°.
0St. Charles, Saturday, 15 August
Overcast. High 68°, low 60°.
0St. Charles, Sunday, 16 August
Overcast. High 74°, low 61°.
0.01St. Charles, Monday, 17 August
Light rain. High 77°, low 63°.
0St. Charles, Tuesday, 18 August
Overcast. High 80°, low 64°.
0.02St. Charles, Wednesday, 19 August
Light rain. High 73°, low 58°.
0St. Charles, Thursday, 20 August
Overcast. High 66°, low 51°.
0
St. Charles, Friday, 21 August
Clear. High 74°, low 53°.
0.01St. Charles, Saturday, 22 August
Light rain. High 69°, low 55°.
About this forecast
Can I plan a trip on a 2-week forecast?
Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.
What does the "Vs normal" column mean?
It is the gap between the forecast and the climate normal for those same dates in St. Charles, IL, computed over 60 years. A positive value means the week runs warmer than usual.
Why are weekends shown separately?
Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.
Sun and moon today
Weather history
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