GRAFTON, IL 62037 Weather Forecast & Current Conditions
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  62037 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

ST. CHARLES, MO
Current Weather
10:54 PM CDT JUN 8, 2026
Clear
77°F
Feels Like: 78°F
Dewpoint: 72°F
Rel. Hum.: 85%
Visibility: 10 miles
Wind: Calm
Pressure: 29.95 inches
Last 72 hours

Local Area Snow Depth

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(Automated weather data from NWS/FAA)
  62037 WEATHER FORECAST
10-Day model forecast maps
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GRAFTON, IL 62037
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
TONIGHT
Mostly cloudy. A chance of showers and thunderstorms, mainly this evening. Some thunderstorms may produce heavy rainfall. Lows around 70. South winds 5 to 10 mph. Chance of rain 50 percent.
TUESDAY
Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then mostly sunny in the afternoon. Some thunderstorms may produce heavy rainfall in the morning. Humid with highs around 90. Southwest winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 104 in the afternoon.
TUESDAY NIGHT
Mostly clear. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Heat index values up to 104 early in the evening.
WEDNESDAY
Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 101.
WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. A chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the lower 70s. South winds 10 to 15 mph. Chance of rain 50 percent. Heat index values up to 100 early in the evening.
THURSDAY
Mostly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 100.
THURSDAY NIGHT
Showers likely with a chance of thunderstorms in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 70 percent.
FRIDAY
Sunny. Highs in the mid 80s.
FRIDAY NIGHT
Mostly clear. A slight chance of showers after midnight. Lows in the mid 60s. Chance of rain 20 percent.
SATURDAY
Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 20 percent.
SATURDAY NIGHT AND SUNDAY
Partly cloudy. A chance of showers and thunderstorms. Lows in the mid 60s. Highs in the lower 80s. Chance of rain 50 percent.
SUNDAY NIGHT
A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 60s. Chance of rain 30 percent.
MONDAY
Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20 percent.

  62037 WEATHER SATELLITE LOOPS
Visible Weather Satellite
GRAFTON, IL 62037
Infrared Weather Satellite
GRAFTON, IL 62037
  62037 WEATHER RADAR LOOP
NEXRAD Weather Radar
GRAFTON, IL 62037
 MOS COMPUTER WEATHER FORECAST

ST. CHARLES, MO 3 hourly weather forecast
weather forecast created  7:00 AM CDT  6/ 8/2026
Monday
8 JUN 2026		 GRAFTON, IL 62037 weather forecast Day 1, 12 hours 1 PM 81° 85° Mostly Cloudy 53%
RAIN
***		 0% Thunder
( 64% severe)		 S   12 72% 71°
High 84° GRAFTON, IL 62037 weather forecast Day 1, 15 hours 4 PM 83° 88° Mostly Cloudy SSW   12 67% 71°
Mostly Cloudy

Rain Likely

 GRAFTON, IL 62037 weather forecast Day 1, 18 hours 7 PM 83° 88° Partly Cloudy 61%
RAIN
***		 0% Thunder
( 49% severe)		 SW   10 67% 71°
GRAFTON, IL 62037 weather forecast Day 1, 21 hours 10 PM 76° 76° Mostly Cloudy S   6 87% 72°
Tuesday
9 JUN 2026		 GRAFTON, IL 62037 weather forecast Day 2, 0 hours 1 AM 75° 75° Mostly Cloudy 61%
RAIN
***		 0% Thunder
( 25% severe)		 SSW   6 84% 70°
Low 70° GRAFTON, IL 62037 weather forecast Day 2, 3 hours 4 AM 73° 73° Mostly Cloudy SSW   7 90% 70°
High 92° GRAFTON, IL 62037 weather forecast Day 2, 6 hours 7 AM 75° 75° Mostly Cloudy 14%
RAIN
.01–.1 in		 0% Thunder
( 25% severe)		 SW   7 87% 71°

Partly Cloudy



 GRAFTON, IL 62037 weather forecast Day 2, 9 hours 10 AM 82° 87° Partly Cloudy WSW   10 74% 73°
GRAFTON, IL 62037 weather forecast Day 2, 12 hours 1 PM 88° 98° Partly Cloudy 14%
RAIN
<.01 in		 0% Thunder
( 38% severe)		 WSW   12 66% 75°
GRAFTON, IL 62037 weather forecast Day 2, 15 hours 4 PM 92° 103° Partly Cloudy WSW   12 58% 75°
GRAFTON, IL 62037 weather forecast Day 2, 18 hours 7 PM 91° 102° Clear 3%

 0% Thunder
( 17% severe)		 SW   8 60% 75°
GRAFTON, IL 62037 weather forecast Day 2, 21 hours 10 PM 82° 88° Partly Cloudy SSW   8 77% 74°
Wednesday
10 JUN 2026		 GRAFTON, IL 62037 weather forecast Day 3, 0 hours 1 AM 80° 83° Clear 0%

 0% Thunder
( 10% severe)		 SSW   8 74% 71°
Low 73° GRAFTON, IL 62037 weather forecast Day 3, 3 hours 4 AM 76° 77° Clear SSW   8 82% 70°
High 94° GRAFTON, IL 62037 weather forecast Day 3, 6 hours 7 AM 77° 79° Clear 0%

 0% Thunder
( 10% severe)		 SSW   9 79% 70°

Partly Cloudy



 GRAFTON, IL 62037 weather forecast Day 3, 9 hours 10 AM 85° 90° Clear SSW   13 63% 71°
GRAFTON, IL 62037 weather forecast Day 3, 15 hours 1 PM 92° 100° Partly Cloudy 2%

 0% Thunder
( 28% severe)		 SSW   15 52% 72°
GRAFTON, IL 62037 weather forecast Day 3, 18 hours 4 PM 94° 100° Partly Cloudy SSW   15 46% 70°
GRAFTON, IL 62037 weather forecast Day 3, 21 hours 7 PM 92° 98° Partly Cloudy     SSW   15 49% 70°

ST. CHARLES, MO extended weather forecast
Thursday
11 JUN 2026		 Friday
12 JUN 2026		 Saturday
13 JUN 2026		 Sunday
14 JUN 2026		 Monday
15 JUN 2026
Low 74° Low 73° Low 61° Low 64° Low 65°
High 98° High 85° High 89° High 85° High 79°
GRAFTON, IL 62037 weather forecast Day 4 GRAFTON, IL 62037 weather forecast Day 5 GRAFTON, IL 62037 weather forecast Day 6 GRAFTON, IL 62037 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Partly Cloudy
40% Rain		 Overcast
57% Rain		 Partly Cloudy
14% Rain		 Partly Cloudy
18% Rain		 Overcast
40% Rain
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