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Saint Charles — VanSky 39 (Challenging)

District seat · Missouri, United States

27° Rain
VanSky
39
Challenging
Comfortable days: 0 of 7
Feels like
33°C
Wind
6 km/h
Precip
0%
Humidity
83%
UV
—
/
05:50 / 20:25

VanSky index for Saint Charles, United States — 39 out of 100 (Challenging). Decide in seconds: temperature, precipitation, wind and solar output. Data refreshed several times a day from real weather observations.

The main score is weekly (7-day average). The “Today” toggle shows the current day, and the region page compares cities “by area”.

Saint Charles, United States — VanSky 39 out of 100. Difficult — consider alternatives. Ranked #3134 of 4681 cities in the country (as of 16 July 2026). Temperature 30°C, wind 6 km/h. Solar panels yield 2.2 kWh/day at 400 W — enough for full autonomy.

∅ 7-day average

Sleep
66
24°C
Night temperature
Solar
50
2.2 kWh
for 500W panels • sunny 9.2h
Driving
95
6 km/h
Wind speed (gusts 15)
Condensation
High
83%
Humidity level • Dew point 23.7°C very muggy
Awning
Safe
15 km/h
Max gusts
Air Quality
Fair
33 AQI
PM2.5: 12.6 μg/m³

Upcoming forecast

Th
16.07
day
30°
night
24°
solar
2.2 kWh
wind
6 km/h
VanSky 44
comfort
Fr
17.07
day
31°
night
24°
solar
2.3 kWh
wind
13 km/h
gusts 29 км/ч
VanSky 40
comfort
Sa
18.07
day
32°
night
25°
solar
2.7 kWh
wind
18 km/h
gusts 38 км/ч
VanSky 42
comfort
Su
19.07
day
31°
night
25°
solar
2.4 kWh
wind
11 km/h
gusts 24 км/ч
VanSky 45
comfort
Mo
20.07
day
32°
night
22°
solar
2.8 kWh
wind
8 km/h
VanSky 45
comfort
Tu
21.07
day
34°
night
26°
solar
2.3 kWh
wind
9 km/h
VanSky 32
comfort
We
22.07
day
31°
night
22°
solar
3.1 kWh
wind
11 km/h
gusts 22 км/ч
VanSky 58
comfort

Saint Charles on map

Open full map →
Open-Meteo

Solar — W Panels W

Today's output
Peak hours
5.5h
sunny 9.2h
Usage estimate

Travel recommendations

  • Wind is calm — safe to open the awning and leave it out overnight.
  • High condensation risk — ventilate before sleep and leave a small gap in the roof vent.

Air Quality Today

33
Good
Fair
Moderate
Poor
Danger
33
Fair
Air quality is acceptable — minor pollutants, most people won't notice.
PM2.5
12.6
μg/m³
Fair
Dust
0
μg/m³
Good
Pollen
—

Similar by VanSky

Cities with a close score — route alternatives

VanSky Index

A weather comfort index for travel: a 0–100 score. Recalculated daily from live weather data — temperature, rainfall, wind and sun.

80–100 Ideal
60–79 Comfortable
40–59 Acceptable
20–39 Challenging
0–19 Extreme

How it's calculated:

  • Thermal comfort 35%
  • Sunshine 25%
  • Precipitation 25%
  • Wind 15%

Data: Open-Meteo · Updated several times a day

Where the weather is best in United States

Saint Charles ranks 2446 of 4681 cities. Country average VanSky — 48.

Best
1
East Palo Alto
100 2
Chinatown
100 3
Hillsborough
100 4
Millbrae
100 5
Marina
100
Harshest
San Luis
10
Somerton
10
Marrero
8
La Quinta
6
Sun Lakes
1
All 4681 cities in the country

Frequently Asked Questions

Is it possible to live in a motorhome in Saint Charles?
The weekly VanSky index for Saint Charles is 39 out of 100 (7-day average). Above 60 is comfortable for parking, below 40 — consider alternatives. Check the 7-day forecast on this page.
What is the solar panel output in Saint Charles?
Solar panel output data for Saint Charles is calculated from real peak sun hours. The result is shown in the Solar section — you can adjust it to your panel wattage.
How does VanSky calculate the comfort index for Saint Charles?
The index for Saint Charles is calculated using: thermal comfort (temperature + humidity), precipitation, wind, and solar activity. Extreme conditions — frost, storm, heavy rain — drive the score toward zero.

Nearby cities

Bridgeton 6 km Maryland Heights 9 km Hazelwood 10 km Saint Ann 11 km Saint Peters 13 km Florissant 14 km Overland 14 km Creve Coeur 15 km

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🇺🇸 United States — fuel prices

Updated: 11.07.2026

Regular

$1.01 /l

€0.88 · £0.75/l

27 of 133

cheaper than 80% of countries

Midgrade

$1.16 /l

€1.01 · £0.86/l

20 of 92

cheaper than 79% of countries

Premium

$1.26 /l

€1.10 · £0.94/l

8 of 23

cheaper than 70% of countries

Diesel #2

$1.23 /l

€1.08 · £0.92/l

51 of 134

cheaper than 63% of countries

All countries Prices: United States

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