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Extreme Heat Through The Weekend

Hazardous Weather Conditions

Current conditions at

Denison (KDNS)

Lat: 41.98°NLon: 95.38°WElev: 1273ft.

Fair and Windy

95°F

35°C

Humidity	44%
Wind Speed	S 29 G 39 mph
Barometer	29.61 in
Dewpoint	70°F (21°C)
Visibility	9.00 mi
Heat Index	101°F (38°C)
Last update	21 Jun 5:55 pm CDT

More Information:

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

Extended Forecast for

Denison IA

Extreme Heat Warning June 21, 06:21pm until June 22, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning June 21, 06:21pm until June 22, 09:00pm
NOW until 9:00pm Sun
Extreme Heat Warning
Tonight
Low: 77 °F
Clear and
Windy
Sunday
High: 97 °F
Hot and Windy
Sunday Night
Low: 74 °F
Slight Chance
T-storms and
Windy
Monday
High: 86 °F
Slight Chance
T-storms then
Showers
Likely
Monday Night
Low: 65 °F
Heavy Rain
Tuesday
High: 82 °F
Showers
Tuesday Night
Low: 67 °F
T-storms
Wednesday
High: 88 °F
Showers
Likely

Detailed Forecast

Tonight

Clear, with a low around 77. Windy, with a south wind 20 to 24 mph, with gusts as high as 32 mph.

Sunday

Sunny and hot, with a high near 97. Heat index values as high as 102. Windy, with a south wind 20 to 25 mph, with gusts as high as 40 mph.

Sunday Night

A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 74. Windy, with a south wind 15 to 21 mph, with gusts as high as 32 mph.

Monday

A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 86. South southwest wind 10 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 65. North northeast wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

Tuesday

Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

Tuesday Night

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 67. Chance of precipitation is 80%.

Wednesday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 88. Chance of precipitation is 70%.

Wednesday Night

Showers and possibly a thunderstorm. Low around 66. Chance of precipitation is 80%.

Thursday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.

Thursday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.