New York, NY 75° Los Angeles, CA 101° Chicago, IL 81° Houston, TX 104° Miami, FL 91° 🌤️ Phoenix, AZ 🌤️ Seattle, WA Denver, CO 92° 🌤️ Toronto, ON Vancouver, BC 67°
WeatherLive › Illinois › Mason City

Mason City, IL Weather (62664)

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherMason City · 3:35 PM CDT
85° | 65°
85°F
Feels like 87°
Sunny
WindNW 12 mph · Gusts 16 mph
Precip10% · –
Humidity50% · Dew point 65°
UV index8 High
Air Quality44 Good
Pressure30.00 inHg
Visibility6 mi
Sunrise / Sunset6:16 AM · 7:46 PM · 13h 30m

Weather map — Mason City

Full radar →
Now
85°
2%
12 mph
16:00
85°
3%
12 mph
17:00
84°
2%
12 mph
18:00
82°
2%
11 mph
19:00
79°
3%
8 mph
20:00
75°
4%
7 mph
21:00
72°
6%
8 mph
22:00
70°
6%
7 mph
23:00
65°
13%
7 mph
00:00
64°
13%
7 mph
01:00
63°
13%
6 mph
02:00
62°
13%
5 mph
03:00
62°
12%
6 mph
04:00
61°
11%
7 mph
05:00
60°
12%
7 mph
06:00
59°
12%
6 mph
07:00
60°
12%
6 mph
08:00
62°
10%
6 mph
09:00
65°
7%
7 mph
10:00
68°
5%
6 mph
11:00
71°
8%
6 mph
12:00
74°
12%
5 mph
13:00
75°
9%
5 mph
14:00
76°
2%
4 mph

Today · Sat 8/22

High 85°
10% / –

Sunny. Winds NW at 12 mph.

Tonight · Sat 8/22

Low 59°
6% / –

Sunny. Winds NW at 8 mph.

Tomorrow · Sun 8/23

77° | 59°
9% / –

Sunny. Winds E at 8 mph.

7-day trend

Mason City · temperature + precipitation

10-day forecast

Updated 3:35 PM

Details & indices

Wind
12 mph NW
Gusts 16 mph
Humidity
50%
Dew point 65°
Pressure
30.00 inHg
Rising
UV index
8 — High
High today
Air Quality
Good
AQI 44 · US EPA
Allergy
None detected
—
Visibility
6 mi
Clear view
Allergy — Mason City

🌿 Conditions right now

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

Sun & moon

Sunrise6:16 AM
Sunset7:46 PM
Length of day13h 30m
Moonrise4:43 PM
Moonset12:33 AM
Moon phase🌔 Waxing Gibbous · 75%
Next full moonAug 27 Sturgeon Moon
Latitude40.2023°N
Longitude-89.6982°E

Water temps nearby

View all →
No beaches within 50 miles

Daily planner

computed from today's forecast
Laundry day
Great
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
Chicago
Sunny
81° 🌤️
Aurora
—
— 🌤️
Rockford
—
—
Joliet
Sunny
82°
Naperville
Sunny
81°
Data sources · Saturday, August 22
Where the Mason City 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: 40.2023°N, -89.6982°.
NBM + global weather models
Updated: 3:35 PM
ZIP codes in Mason City
📮
62642
Mason City
 📮
62664
Mason City
 📮
62666
Mason City
 📮
62671
Mason City
 📮
62682
Mason City
Weather in Mason City
Over the next 10 days Mason City tops out around 85° (Saturday) and dips to 59° on the coolest night (Sunday). About 0.83 in of precipitation is expected in total; the most likely wet day is Monday (87% chance). Expect a blustery spell — gusts near 33 mph on Saturday. No active NWS alerts at the moment — quiet on the hazards front. Right now Mason City is running about 16° warmer than Aurora. Longer view: variable mid-latitude weather in every season.
Mason City, IL · Elev 581 ft · 40.20°N, 89.70°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: 3:35 PM