Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Hazardous Weather Conditions

Extreme Heat Warning until July 27, 10:00 PM CDT

Current conditions at

Atlantic (KAIO)

Lat: 41.4°NLon: 95.05°WElev: 1181ft.

Fair

82°F

28°C

Humidity	94%
Wind Speed	S 7 mph
Barometer	29.79 in
Dewpoint	81°F (27°C)
Visibility	10.00 mi
Heat Index	93°F (34°C)
Last update	27 Jul 1:35 am CDT

More Information:

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

Extended Forecast for

2 Miles W Griswold IA

Extreme Heat Warning July 27, 01:52am until July 27, 10:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning July 27, 01:52am until July 27, 10:00pm
NOW until 10:00pm Mon
Extreme Heat Warning
Overnight
Low: 78 °F
Partly Cloudy
Monday
High: 99 °F
Sunny then
Slight Chance
Showers
Monday Night
Low: 73 °F
Patchy Smoke
Tuesday
High: 88 °F
Mostly Cloudy
Tuesday Night
Low: 68 °F
Partly Cloudy
Wednesday
High: 90 °F
Mostly Sunny
Wednesday Night
Low: 70 °F
Partly Cloudy
Thursday
High: 88 °F
Chance
T-storms

Detailed Forecast

Overnight

Partly cloudy, with a low around 78. South wind around 10 mph, with gusts as high as 18 mph.

Monday

A slight chance of showers between 2pm and 4pm. Sunny and hot, with a high near 99. Heat index values as high as 111. South wind 5 to 7 mph becoming north northeast in the afternoon. Chance of precipitation is 20%.

Monday Night

Patchy smoke after 8pm. Mostly cloudy, with a low around 73. North northeast wind around 6 mph.

Tuesday

Mostly cloudy, with a high near 88. East wind 5 to 7 mph.

Tuesday Night

Partly cloudy, with a low around 68. East southeast wind around 6 mph becoming calm in the evening.

Wednesday

Mostly sunny, with a high near 90. Southeast wind 3 to 8 mph.

Wednesday Night

Partly cloudy, with a low around 70. Southeast wind 3 to 8 mph.

Thursday

A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88. South southeast wind 5 to 11 mph, with gusts as high as 17 mph.

Thursday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. South southeast wind 5 to 10 mph becoming light after midnight.

Friday

A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 84. Light and variable wind becoming north 5 to 10 mph in the morning. Winds could gust as high as 16 mph.

Friday Night

Partly cloudy, with a low around 65. North northeast wind 5 to 9 mph becoming calm in the evening.

Saturday

Mostly sunny, with a high near 85. North northeast wind 3 to 7 mph.

Saturday Night

Mostly clear, with a low around 64. North northeast wind around 6 mph becoming calm in the evening.

Sunday

Sunny, with a high near 87. Calm wind becoming south southeast 5 to 7 mph in the afternoon.