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WeatherLive › Illinois › Mascoutah

Mascoutah, IL Weather (62258)

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherMascoutah · 6:25 PM CDT
91° | 70°
87°F
Feels like 89°
Sunny
WindN 6 mph · Gusts 10 mph
Precip43% · 0.03 in
Humidity51% · Dew point 67°
UV index8 High
Air Quality48 Good
Pressure29.97 inHg
Visibility6 mi
Sunrise / Sunset6:18 AM · 7:47 PM · 13h 29m

Weather map — Mascoutah

Full radar →
Now
87°
2%
6 mph
19:00
83°
3%
7 mph
20:00
79°
4%
9 mph
21:00
77°
5%
8 mph
22:00
75°
6%
8 mph
23:00
74°
7%
8 mph
00:00
73°
8%
7 mph
01:00
72°
9%
5 mph
02:00
71°
10%
6 mph
03:00
70°
11%
4 mph
04:00
70°
12%
3 mph
05:00
65°
14%
2 mph
06:00
64°
15%
4 mph
07:00
65°
15%
4 mph
08:00
66°
12%
5 mph
09:00
69°
9%
4 mph
10:00
73°
6%
3 mph
11:00
76°
4%
3 mph
12:00
78°
3%
3 mph
13:00
79°
3%
4 mph
14:00
81°
2%
5 mph
15:00
81°
2%
4 mph
16:00
82°
2%
3 mph
17:00
81°
2%
2 mph

Today · Thu 8/20

High 91°
43% / 0.03 in

Sunny. Winds N at 11 mph.

Tonight · Thu 8/20

Low 64°
5% / –

Sunny. Winds NE at 8 mph.

Tomorrow · Fri 8/21

82° | 64°
6% / –

Sunny. Winds E at 7 mph.

7-day trend

Mascoutah · temperature + precipitation

10-day forecast

Updated 6:25 PM

Details & indices

Wind
6 mph N
Gusts 10 mph
Humidity
51%
Dew point 67°
Pressure
29.97 inHg
Rising
UV index
8 — High
High today
Air Quality
Good
AQI 48 · US EPA
Allergy
Moderate
Mugwort
Visibility
6 mi
Clear view
Allergy — Mascoutah

🌿 Conditions right now

View all →
Birch
None
Grass
None
Oak
None
Alder
None
Hazel
None
Mugwort
Moderate
Ragweed
Low

Sun & moon

Sunrise6:18 AM
Sunset7:47 PM
Length of day13h 29m
Moonrise2:46 PM
Moonset11:54 PM
Moon phase🌓 First Quarter · 58%
Next full moonAug 27 Sturgeon Moon
Latitude38.4903°N
Longitude-89.7931°E

Water temps nearby

View all →
No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Fair
Line-drying weather
Grilling
Great
Fire up the grill
Running
Poor
Lace up outside
Patio
Fair
Dinner outdoors
Nearby places in {{REGION}}
Chicago
Sunny
80° 🌤️
Aurora
—
— 🌤️
Rockford
—
— 🌤️
Joliet
—
—
Naperville
Sunny
86°
Data sources · Thursday, August 20
Where the Mascoutah forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 38.4903°N, -89.7931°.
NBM + global weather models
Updated: 6:25 PM
Weather in Mascoutah
The 10-day span for Mascoutah runs from a high near 91° on Thursday down to 64° overnight on Friday. Models drop roughly 0.52 in of precipitation across the stretch — watch Monday (82%). Expect a blustery spell — gusts near 32 mph on Monday. No watches or warnings are active for the area right now. Right now Mascoutah is running about 20° warmer than Columbia. Longer view: variable mid-latitude weather in every season.
Mascoutah, IL · Elev 430 ft · 38.49°N, 89.79°W · Illinois · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 6:25 PM