National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Fair

54°F

12°C

Humidity 97%
Wind Speed N 5 mph
Barometer 30.13 in (1019.6 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 23 Aug 1:53 am CDT
Extended Forecast for

3 Miles S Mason City IA

  • Overnight

    Overnight: Mostly clear, with a low around 53. North northwest wind 3 to 5 mph.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 77. Light northwest wind.

    High: 77 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 55. Calm wind.

    Low: 55 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. South wind 3 to 6 mph.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 83.

    High: 83 °F

    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64.

    Low: 64 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 82. Breezy.

    High: 82 °F

    Sunny then
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 53. North northwest wind 3 to 5 mph.
Sunday
Sunny, with a high near 77. Light northwest wind.
Sunday Night
Increasing clouds, with a low around 55. Calm wind.
Monday
Mostly sunny, with a high near 77. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 60. South wind 3 to 6 mph.
Tuesday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 83.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 64.
Wednesday
Sunny, with a high near 82. Breezy.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 57.
Friday
Mostly sunny, with a high near 80.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 60.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Mason City IA
 43.1°N 93.19°W
Last Update:
1:26 am CDT Aug 23, 2026
Forecast Valid:
2am CDT Aug 23, 2026-6pm CDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation