...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM CDT
WEDNESDAY for Cass, Audubon, Guthrie, Adair, Madison, Adams, Union, Taylor and Ringgold counties. 
and until 10:00 p.m. Wednesday for Harrison, Shelby, Pottawattamie, Mills, Montgomery, Fremont, and Page Counties.
*An Excessive Heat Watch is in place until Wednesday evening for Crawford and Carroll Counties.*
*A Heat Advisory is in place for Monona County until Wednesday at 10:00 p.m.**

* WHAT...An extended period of dangerously hot conditions with
  heat index values up to 114.

* WHERE...Much of the southern half of Iowa.

* WHEN...Until 9 PM CDT Wednesday.

* IMPACTS...Extreme heat and humidity will significantly
  increase the potential for heat related illnesses,
  particularly for those working or participating in outdoor
  activities.

* ADDITIONAL DETAILS...The long duration of the heat can be
  particularly hard on the very young, the elderly and those
  with medical conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

*Excessive Heat Warning in effect from August 19, 01:00 PM CDT until August 23, 09:00 PM CDT

*EXCESSIVE HEAT WATCH IS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH MONDAY EVENING FOR CASS, CRAWFORD, CARROLL, AUDUBON, 
GUTHRIE, ADAIR, MADISON, ADAMS, UNION, TAYLOR, AND RINGGOLD COUNTIES
*WATCH IN PLACE FOR ALL OTHER COUNTIES IN THE LISTENING AREA UNTIL WEDNESDAY EVENING*

* WHAT...Dangerously hot conditions with heat index values nearing
  105 or more possible for several days Saturday into next week.

* WHERE...Portions of south central and southwestern Iowa.

* WHEN...From Saturday afternoon through Monday evening.

* IMPACTS...Extreme heat and humidity will significantly
  increase the potential for heat related illnesses,
  particularly for those working or participating in outdoor
  activities.

* ADDITIONAL DETAILS...Hot conditions are expected to expand into
  northern Iowa by Monday and then likely extend further into
  next week across the entire area as well. Additional expansion
  of heat related headlines is very possible over most of the
  region as more certainty on coverage and duration is realized.

The final days of the Iowa State Fair promise to be sweltering, as Iowans are being warned about a late summer heat wave that’s approaching for the weekend. The past few evenings have felt almost like fall with lows in the 50s and 60s, but National Weather Service meteorologist Cory Martin says daytime high temperatures will be climbing again very soon.

Many of Iowa’s crops are at critical growth stages and Martin says there’s very little chance for rain, well into next week.

With high temps likely climbing into triple digits this weekend, Martin says it’s certainly possible the weather service will issue heat advisories, or even extreme heat warnings.

The long-range forecast indicates those high temperatures will last at least as far as next Tuesday, with the prediction of 95 degrees that day in Des Moines.

Today: Patchy fog before 8am. Otherwise, sunny, with a high near 78. North northwest wind 5 to 7 mph.
Tonight: Mostly clear, with a low around 56. Light and variable wind becoming south around 6 mph in the evening.
Wednesday: Sunny, with a high near 85. Breezy, with a south southwest wind 9 to 18 mph, with gusts as high as 23 mph.
Wednesday Night: Mostly clear, with a low around 63. Breezy, with a south wind 10 to 18 mph becoming west northwest after midnight. Winds could gust as high as 29 mph.
Thursday: Sunny, with a high near 80. North northwest wind 8 to 13 mph, with gusts as high as 18 mph.
Thursday Night: Clear, with a low around 55.
Friday: Sunny, with a high near 84.

Yesterday’s high was 72 and the low was 53. This day last year the high was 69 and the low was 62. The all-time record high was 103 set in 1937. The record low was 40 set in 1929. Sunrise is 6:28 a.m. and sunset is 8:20 p.m.

Today: Mostly cloudy, with a high near 70. Windy, with a west northwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 53. Breezy, with a north wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday: Sunny, with a high near 78. Northwest wind 5 to 10 mph.
Tuesday Night: Mostly clear, with a low around 56. South wind 5 to 10 mph.
Wednesday: Sunny, with a high near 84. Breezy, with a south southwest wind 10 to 20 mph, with gusts as high as 25 mph.
Thursday: Sunny, with a high near 81.

Yesterday’s high was 78 and the low was 60. This day last year the high was 83 and the low was 60. The  all-time record high was 107 set back in 1936 and the record low was 45 in 1929. Sunrise today is 6:27 a.m. and sunset is 8:21 p.m.