Hazardous Weather Conditions
Current conditions at
Mason City Municipal Airport (KMCW)
Lat: 43.15°NLon: 93.33°WElev: 1188ft.
A Few Clouds
80°F
27°C
| Humidity | 82% |
| Wind Speed | S 7 mph |
| Barometer | 29.84 in (1008.9 mb) |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 30 Jun 9:53 pm CDT |
Extended Forecast for
4 Miles E Grafton IA
Heat Advisory July 1, 01:00pm until July 1, 08:00pm
Tonight
Low: 73 °F
Mostly Cloudy
then T-stormsWednesday
High: 88 °F
T-storms
Likely then
Chance
T-storms and
BreezyWednesday Night
Low: 70 °F
T-storms then
Chance
T-stormsThursday
High: 88 °F
Chance
T-stormsThursday Night
Low: 70 °F
T-storms
Likely then
ShowersFriday
High: 89 °F
Showers
LikelyFriday Night
Low: 69 °F
T-storms
LikelyIndependence Day
High: 83 °F
Chance
T-stormsSaturday Night
Low: 66 °F
Chance
T-storms
Detailed Forecast
Tonight
Showers and thunderstorms, mainly after 4am. Low around 73. South wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 88. Heat index values as high as 97. Breezy, with a south wind 10 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms, mainly before midnight. Low around 70. South wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. South wind 7 to 9 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 70. South wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. South wind around 11 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely, mainly after 1am. Partly cloudy, with a low around 69. South wind around 8 mph becoming west in the evening. Chance of precipitation is 60%.
Independence Day
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. Southeast wind 8 to 10 mph.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66. East wind 6 to 9 mph.
Sunday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. Northeast wind around 7 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65. Northeast wind around 6 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 84. East wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 65. Southeast wind 3 to 6 mph.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85. South wind 5 to 7 mph.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles E Grafton IA
43.34°N 92.98°W
43.34°N 92.98°W
9:27 pm CDT Jun 30, 2026
10pm CDT Jun 30, 2026-6pm CDT Jul 7, 2026
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