Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
Fair
28°C
82°F
| Humidity | 55% |
| Wind Speed | SE 11 km/h |
| Barometer | 1014.3 mb (29.99 in) |
| Dewpoint | 18°C (64°F) |
| Visibility | 13 km |
| Heat Index | 29°C (84°F) |
| Last update | 19 Jul 3:53 pm CDT |
Extended Forecast for
Rockwell IA
Heat Advisory July 20, 12:00pm until July 20, 08:00pm
This Afternoon

High: 29 °C
Patchy Smoke
Tonight
Low: 18 °C
Patchy Smoke
then Slight
Chance
T-stormsMonday

High: 34 °C
Chance
T-stormsMonday Night
Low: 20 °C
Chance
T-storms then
Partly CloudyTuesday

High: 27 °C
Sunny and
BreezyTuesday Night

Low: 14 °C
Mostly Clear
Wednesday

High: 25 °C
Sunny
Wednesday Night

Low: 13 °C
Mostly Clear
Thursday

High: 26 °C
Mostly Sunny
Detailed Forecast
This Afternoon
Patchy smoke. Mostly sunny, with a high near 29. Southeast wind around 8 km/h.
Tonight
A 10 percent chance of showers and thunderstorms after 5am. Patchy smoke before 1am. Partly cloudy, with a low around 18. South southeast wind 5 to 13 km/h.
Monday
A chance of showers and thunderstorms before 1pm, then a chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 34. Heat index values as high as 41. Southwest wind 13 to 21 km/h, with gusts as high as 34 km/h. Chance of precipitation is 50%. New rainfall amounts between 2.5 and 5 mm possible.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly between 10pm and midnight. Partly cloudy, with a low around 20. West southwest wind around 14 km/h becoming northwest after midnight. New precipitation amounts between 2.5 and 5 mm possible.
Tuesday
Sunny, with a high near 27. Breezy, with a north northwest wind 18 to 23 km/h increasing to 27 to 32 km/h in the morning. Winds could gust as high as 45 km/h.
Tuesday Night
Mostly clear, with a low around 14.
Wednesday
Sunny, with a high near 25.
Wednesday Night
Mostly clear, with a low around 13.
Thursday
Mostly sunny, with a high near 26.
Thursday Night
Mostly cloudy, with a low around 15.
Friday
Mostly sunny, with a high near 27.
Friday Night
Partly cloudy, with a low around 16.
Saturday
Sunny, with a high near 29.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Rockwell IA
42.97°N 93.19°W
42.97°N 93.19°W
1:46 pm CDT Jul 19, 2026
4pm CDT Jul 19, 2026-6pm CDT Jul 25, 2026



