Denison, IA Weather Forecast & Current Conditions

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Denison Weather Map
UTC Time: 9/15/2026, 11:25
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Denison, IA Regional Weather

Expires:202609151200;;487863
ASUS43 KDMX 151110
RWRIA 

WEATHER ROUNDUP FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
600 AM CDT TUE SEP 15 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

* - THESE STATIONS ARE NOT NWS STATIONS...THUS NOT UNDER NWS
QUALITY CONTROL.  THEY ALSO DO NOT REPORT WEATHER SUCH 
AS PRECIPITATION OR FOG.  


IAZ001>003-012>014-020>022-031>034-043>046-151200-
   NORTHWEST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARROLL *      CLOUDY    70  70 100 N8        29.93R TC  21           
CHEROKEE *     MOCLDY    63  63 100 S3        29.97R TC  17           
DENISON *      CLOUDY    68  68 100 NE3       29.96R TC  20           
LE MARS *      MOCLDY   N/A N/A N/A NW7       29.98R                  
MAURICE *      CLOUDY    63  63 100 W7        29.99R TC  17           
SHELDON *      CLOUDY    61  61 100 NW10      29.96R TC  16           
SIOUX CITY     MOCLDY    65  64  97 CALM      29.97R TC  18           
SPENCER        MOCLDY    62  61  96 SW3       29.96R TC  17           
STORM LAKE *   MOCLDY    64  63  94 NW6       29.97R TC  18           
$$
 

SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Denison, IA

Today
Thunderstorms
72°/ 55° 22°/ 13°
100%
Wednesday
Thunderstorms
68°/ 60° 20°/ 16°
70%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
70%
Friday
Thunderstorms
82°/ 65° 28°/ 18°
80%
Saturday
Thunderstorms
75°/ 55° 24°/ 13°
40%
Sunday
Thunderstorms
68°/ 52° 20°/ 11°
20%

Day: Showers with a chance of thunderstorms early this morning. Highs in the lower 70s. West winds around 5 mph, becoming north. Chance of rain near 100 percent.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds 5 to 10 mph.

Carroll, IA

Today
Thunderstorms
72°/ 55° 22°/ 13°
100%
Wednesday
Thunderstorms
70°/ 60° 21°/ 16°
60%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
70%
Friday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
50%
Sunday
Thunderstorms
70°/ 52° 21°/ 11°
20%

Day: Showers early. A chance of thunderstorms. A chance of showers. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 70s. Southwest winds 5 to 10 mph, becoming north. Chance of rain near 100 percent.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Sac City, IA

Today
Thunderstorms
72°/ 52° 22°/ 11°
100%
Wednesday
Thunderstorms
68°/ 58° 20°/ 14°
50%
Thursday
Rain Showers
78°/ 62° 26°/ 17°
80%
Friday
Thunderstorms
82°/ 62° 28°/ 17°
80%
Saturday
Thunderstorms
78°/ 55° 26°/ 13°
40%
Sunday
Thunderstorms
68°/ 52° 20°/ 11°
20%

Day: Showers with a chance of thunderstorms early, then a chance of showers and thunderstorms this morning. Highs in the lower 70s. Northwest winds 5 to 10 mph. Chance of rain near 100 percent.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 50s. Northeast winds around 5 mph.

Audubon, IA

Today
Thunderstorms
72°/ 55° 22°/ 13°
100%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Thunderstorms
80°/ 62° 27°/ 17°
70%
Friday
Thunderstorms
82°/ 65° 28°/ 18°
80%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
50%
Sunday
Thunderstorms
70°/ 52° 21°/ 11°
20%

Day: Showers with a chance of thunderstorms early this morning, then a chance of showers this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 70s. Southwest winds 5 to 10 mph, becoming north. Chance of rain near 100 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the mid 50s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.

Rockwell City, IA

Today
Thunderstorms
72°/ 52° 22°/ 11°
100%
Wednesday
Thunderstorms
68°/ 58° 20°/ 14°
50%
Thursday
Rain Showers
78°/ 62° 26°/ 17°
80%
Friday
Thunderstorms
82°/ 62° 28°/ 17°
90%
Saturday
Thunderstorms
78°/ 55° 26°/ 13°
50%
Sunday
Thunderstorms
70°/ 52° 21°/ 11°
20%

Day: Showers with a chance of thunderstorms early, then a chance of showers and thunderstorms this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 70s. Northwest winds 5 to 10 mph, becoming north this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. Lows in the lower 50s. Light and variable winds, becoming east around 5 mph after midnight.

Jefferson, IA

Today
Thunderstorms
72°/ 55° 22°/ 13°
100%
Wednesday
Thunderstorms
70°/ 60° 21°/ 16°
70%
Thursday
Rain Showers
80°/ 62° 27°/ 17°
70%
Friday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
50%
Sunday
Thunderstorms
72°/ 52° 22°/ 11°
20%

Day: Showers with a chance of thunderstorms early this morning, then a chance of showers this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 70s. Southwest winds 5 to 10 mph, becoming northwest. Chance of rain near 100 percent.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Atlantic, IA

Today
Thunderstorms
68°/ 58° 20°/ 14°
90%
Wednesday
Thunderstorms
75°/ 62° 24°/ 17°
70%
Thursday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Friday
Thunderstorms
85°/ 65° 29°/ 18°
80%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
50%
Sunday
Thunderstorms
70°/ 52° 21°/ 11°
20%

Day: Showers with a chance of thunderstorms early this morning, then a chance of showers this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Near steady temperature in the upper 60s. North winds 5 to 10 mph. Chance of rain 90 percent.

Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the upper 50s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Guthrie Center, IA

Today
Thunderstorms
72°/ 55° 22°/ 13°
100%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Thunderstorms
80°/ 62° 27°/ 17°
70%
Friday
Thunderstorms
85°/ 65° 29°/ 18°
80%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
50%
Sunday
Thunderstorms
72°/ 52° 22°/ 11°
20%

Day: Showers with a chance of thunderstorms early this morning, then a chance of showers this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 70s. Southwest winds 10 to 15 mph with gusts up to 30 mph, becoming north 5 to 10 mph. Chance of rain near 100 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the mid 50s. Northeast winds around 5 mph. Chance of rain 20 percent.

Pocahontas, IA

Today
Thunderstorms
72°/ 52° 22°/ 11°
70%
Wednesday
Thunderstorms
68°/ 58° 20°/ 14°
40%
Thursday
Rain Showers
75°/ 60° 24°/ 16°
90%
Friday
Thunderstorms
78°/ 62° 26°/ 17°
90%
Saturday
Thunderstorms
75°/ 55° 24°/ 13°
40%
Sunday
Rain Showers
68°/ 50° 20°/ 10°
20%

Day: Mostly cloudy. Showers likely with a slight chance of thunderstorms early, then a chance of showers with a slight chance of thunderstorms this morning. Highs in the lower 70s. Northwest winds 5 to 10 mph. Chance of rain 70 percent.

Night: Partly cloudy. Lows in the lower 50s. Northeast winds around 5 mph.

Greenfield, IA

Today
Thunderstorms
68°/ 58° 20°/ 14°
90%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Thunderstorms
80°/ 65° 27°/ 18°
70%
Friday
Thunderstorms
82°/ 65° 28°/ 18°
80%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Sunday
Thunderstorms
70°/ 55° 21°/ 13°
20%

Day: Showers with a chance of thunderstorms early this morning, then a chance of showers this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Humid. Near steady temperature in the upper 60s. South winds 5 to 10 mph with gusts up to 20 mph, becoming north. Chance of rain 90 percent.

Night: Mostly cloudy. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the upper 50s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Fort Dodge, IA

Today
Thunderstorms
72°/ 55° 22°/ 13°
100%
Wednesday
Thunderstorms
68°/ 58° 20°/ 14°
50%
Thursday
Rain Showers
78°/ 62° 26°/ 17°
80%
Friday
Thunderstorms
80°/ 62° 27°/ 17°
90%
Saturday
Thunderstorms
78°/ 55° 26°/ 13°
50%
Sunday
Thunderstorms
70°/ 52° 21°/ 11°
20%

Day: Showers with a chance of thunderstorms early, then a chance of showers and thunderstorms this morning. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 70s. Southwest winds 10 to 15 mph, becoming northwest 5 to 10 mph. Chance of rain near 100 percent.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Perry, IA

Today
Thunderstorms
72°/ 58° 22°/ 14°
100%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Thunderstorms
80°/ 62° 27°/ 17°
70%
Friday
Thunderstorms
82°/ 65° 28°/ 18°
80%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Sunday
Thunderstorms
72°/ 55° 22°/ 13°
30%

Day: Showers with a chance of thunderstorms early this morning, then a chance of showers this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the lower 70s. Southwest winds 5 to 10 mph with gusts up to 20 mph, becoming north this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. A slight chance of showers after midnight. Lows in the upper 50s. Northeast winds around 5 mph. Chance of rain 20 percent.

Boone, IA

Today
Thunderstorms
72°/ 55° 22°/ 13°
100%
Wednesday
Thunderstorms
70°/ 62° 21°/ 17°
70%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
70%
Friday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
50%
Sunday
Thunderstorms
72°/ 52° 22°/ 11°
20%

Day: Showers with a chance of thunderstorms early this morning, then a chance of showers this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 70s. Southwest winds 5 to 10 mph, becoming northwest. Chance of rain near 100 percent.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Humboldt, IA

Today
Thunderstorms
72°/ 52° 22°/ 11°
100%
Wednesday
Thunderstorms
68°/ 58° 20°/ 14°
40%
Thursday
Rain Showers
75°/ 60° 24°/ 16°
80%
Friday
Thunderstorms
78°/ 62° 26°/ 17°
90%
Saturday
Thunderstorms
75°/ 55° 24°/ 13°
40%
Sunday
Rain Showers
68°/ 50° 20°/ 10°
20%

Day: Showers with a chance of thunderstorms early, then a chance of showers and thunderstorms this morning. Highs in the lower 70s. West winds 5 to 10 mph, becoming northwest this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 50s. Northeast winds around 5 mph.

Corning, IA

Today
Thunderstorms
68°/ 58° 20°/ 14°
90%
Wednesday
Thunderstorms
75°/ 62° 24°/ 17°
70%
Thursday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Friday
Thunderstorms
85°/ 65° 29°/ 18°
80%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Sunday
Rain Showers
70°/ 52° 21°/ 11°
30%

Day: Showers with a chance of thunderstorms early this morning, then showers with a slight chance of thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Some thunderstorms may produce heavy rainfall this afternoon. Humid. Near steady temperature in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 90 percent.

Night: Mostly cloudy. A slight chance of showers in the evening, then a chance of showers and thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the upper 50s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Emmetsburg, IA

Today
Rain Showers
70°/ 50° 21°/ 10°
50%
Wednesday
Rain Showers
68°/ 58° 20°/ 14°
30%
Thursday
Rain Showers
75°/ 58° 24°/ 14°
90%
Friday
Thunderstorms
78°/ 62° 26°/ 17°
90%
Saturday
Thunderstorms
75°/ 55° 24°/ 13°
30%
Sunday
Rain Showers
68°/ 50° 20°/ 10°
20%

Day: Mostly cloudy with a chance of showers early, then partly sunny. Highs around 70. Northwest winds 5 to 10 mph. Chance of rain 50 percent.

Night: Partly cloudy. Lows around 50. North winds around 5 mph, becoming east around 5 mph after midnight.

Winterset, IA

Today
Thunderstorms
68°/ 58° 20°/ 14°
90%
Wednesday
Thunderstorms
72°/ 65° 22°/ 18°
70%
Thursday
Thunderstorms
80°/ 65° 27°/ 18°
70%
Friday
Thunderstorms
82°/ 68° 28°/ 20°
70%
Saturday
Thunderstorms
78°/ 60° 26°/ 16°
70%
Sunday
Thunderstorms
70°/ 55° 21°/ 13°
40%

Day: Showers with a chance of thunderstorms early this morning, then a chance of showers this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Humid. Near steady temperature in the upper 60s. Southwest winds around 5 mph, becoming north. Chance of rain 90 percent.

Night: Mostly cloudy. A slight chance of showers in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the upper 50s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Webster City, IA

Today
Thunderstorms
72°/ 55° 22°/ 13°
100%
Wednesday
Thunderstorms
68°/ 60° 20°/ 16°
50%
Thursday
Rain Showers
78°/ 62° 26°/ 17°
70%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
90%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
50%
Sunday
Thunderstorms
70°/ 52° 21°/ 11°
20%

Day: Showers early. A chance of thunderstorms. A chance of showers. Some thunderstorms may produce heavy rainfall early this morning. Highs in the lower 70s. Southwest winds 10 to 15 mph, becoming northwest 5 to 10 mph. Chance of rain near 100 percent.

Night: Mostly cloudy. Lows in the mid 50s. Northeast winds around 5 mph.

Creston, IA

Today
Thunderstorms
68°/ 58° 20°/ 14°
90%
Wednesday
Thunderstorms
75°/ 65° 24°/ 18°
70%
Thursday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Friday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
70%
Sunday
Thunderstorms
68°/ 55° 20°/ 13°
40%

Day: Showers with a chance of thunderstorms early this morning, then showers with a slight chance of thunderstorms this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Some thunderstorms may produce heavy rainfall this afternoon. Humid. Near steady temperature in the upper 60s. Northeast winds 5 to 10 mph. Chance of rain 90 percent.

Night: Mostly cloudy with a slight chance of thunderstorms. A chance of showers. Some thunderstorms may produce heavy rainfall. Lows in the upper 50s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Des Moines, IA

Today
Thunderstorms
72°/ 58° 22°/ 14°
100%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Thursday
Thunderstorms
80°/ 65° 27°/ 18°
70%
Friday
Thunderstorms
82°/ 68° 28°/ 20°
80%
Saturday
Thunderstorms
80°/ 60° 27°/ 16°
70%
Sunday
Thunderstorms
72°/ 55° 22°/ 13°
40%

Day: Showers with a chance of thunderstorms early this morning, then a chance of showers this afternoon. Some thunderstorms may produce heavy rainfall early this morning. Humid with highs in the lower 70s. South winds around 5 mph, becoming west this morning, then becoming north this afternoon. Chance of rain near 100 percent.

Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Some thunderstorms may produce heavy rainfall after midnight. Lows in the upper 50s. Northeast winds around 5 mph. Chance of rain 20 percent.

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