Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Marshalltown, Marshalltown Municipal Airport (KMIW)

Lat: 42.11°NLon: 92.92°WElev: 971ft.

Light Rain Fog/Mist

57°F

14°C

Humidity	96%
Wind Speed	NE 9 mph
Barometer	30.14 in (1020.6 mb)
Dewpoint	56°F (13°C)
Visibility	1.50 mi
Last update	21 Sep 9:53 am CDT

More Information:

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

Extended Forecast for

Montour IA

Today
High: 59 °F
Showers
Likely and
Patchy Fog
Tonight
Low: 51 °F
Showers
Likely and
Patchy Fog
Tuesday
High: 61 °F
Chance
Showers then
Partly Sunny
Tuesday Night
Low: 44 °F
Mostly Clear
Wednesday
High: 65 °F
Sunny
Wednesday Night
Low: 48 °F
Partly Cloudy
Thursday
High: 64 °F
Slight Chance
Showers
Thursday Night
Low: 52 °F
Mostly Cloudy
Friday
High: 66 °F
Mostly Cloudy

Detailed Forecast

Today

A chance of drizzle before 2pm, then a chance of showers between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Patchy fog after 2pm. Otherwise, cloudy, with a high near 59. East northeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers likely and possibly a thunderstorm before 10pm, then a chance of showers. Patchy fog before 4am. Otherwise, cloudy, with a low around 51. East northeast wind 7 to 9 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday

A 30 percent chance of showers, mainly before 8am. Partly sunny, with a high near 61. East northeast wind around 8 mph. New precipitation amounts of less than a tenth of an inch possible.

Tuesday Night

Mostly clear, with a low around 44. East northeast wind around 5 mph becoming calm in the evening.

Wednesday

Sunny, with a high near 65. East wind 3 to 6 mph.

Wednesday Night

Partly cloudy, with a low around 48.

Thursday

A 20 percent chance of showers before 1pm. Partly sunny, with a high near 64.

Thursday Night

Mostly cloudy, with a low around 52.

Friday

Mostly cloudy, with a high near 66.