Dangerous Heat Continues; Monitoring Excessive Rainfall and Flash Flooding

The heat continues along and east of the Mississippi River. The most significant cumulative heat impacts are expected across the Mid-Atlantic through today and eastern Ohio Valley through Friday. Severe weather and heavy rainfall potential from the Southwest, Plains, upper Midwest, Great Lakes, mid-Atlantic and Northeast the next couple of days. A disturbance near the Marianas may bring flooding. Read More >

Hazardous Weather Conditions

Current conditions at

Mason City Municipal Airport (KMCW)

Lat: 43.15°NLon: 93.33°WElev: 1188ft.

Thunderstorm Light Rain

73°F

23°C

Humidity	94%
Wind Speed	SW 10 mph
Barometer	29.83 in (1009.0 mb)
Dewpoint	71°F (22°C)
Visibility	10.00 mi
Last update	26 Jun 2:53 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles E Grafton IA

Flood Watch until June 27, 04:00am

Tornado Watch June 26, 03:51pm until June 26, 08:00pm

Click here for hazard details and duration

Flood Watch

Tornado Watch

Flood Watch until June 27, 04:00am
Tornado Watch June 26, 03:51pm until June 26, 08:00pm
NOW: Multiple hazards in effect
Click HERE for Details
This Afternoon
High: 82 °F
Severe
Thunderstorms
Tonight
Low: 62 °F
Severe
Thunderstorms
then Cloudy
Friday
High: 78 °F
Decreasing
Clouds
Friday Night
Low: 62 °F
Partly Cloudy
Saturday
High: 88 °F
Mostly Sunny
Saturday Night
Low: 69 °F
Chance
T-storms
Sunday
High: 88 °F
Chance
T-storms then
Showers
Likely
Sunday Night
Low: 65 °F
Chance
T-storms

Detailed Forecast

This Afternoon

Showers and thunderstorms before 4pm, then showers and possibly a thunderstorm after 4pm. Some of the storms could be severe and produce heavy rainfall. High near 82. Southwest wind around 9 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Tonight

Showers and thunderstorms likely before 10pm, then isolated showers between 10pm and 11pm. Some of the storms could be severe and produce heavy rainfall. Cloudy, with a low around 62. Southwest wind 7 to 10 mph becoming northwest after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Cloudy, then gradually becoming mostly sunny, with a high near 78. Northwest wind around 7 mph.

Friday Night

Partly cloudy, with a low around 62. Calm wind becoming southeast around 5 mph after midnight.

Saturday

Mostly sunny, with a high near 88. South wind 6 to 13 mph.

Saturday Night

A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69. South wind 7 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 88. South wind 7 to 9 mph becoming west in the afternoon. Chance of precipitation is 60%.

Sunday Night

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Northwest wind around 6 mph.

Monday

Sunny, with a high near 83. Northwest wind 6 to 10 mph.

Monday Night

Mostly clear, with a low around 61. West wind 6 to 8 mph.

Tuesday

Sunny, with a high near 83. Northwest wind 6 to 8 mph.

Tuesday Night

A 20 percent chance of showers. Mostly clear, with a low around 61. West wind around 6 mph.

Wednesday

A 20 percent chance of showers. Sunny, with a high near 83. West wind 5 to 8 mph.