Duncan, IA Weather Forecast & Current Conditions

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Duncan Weather Map
UTC Time: 9/18/2026, 00:32
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Duncan, IA Regional Weather

Expires:202609180100;;628341
ASUS43 KDMX 180010
RWRIA 

WEATHER ROUNDUP FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
700 PM CDT THU SEP 17 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.  


IAZ004>006-015-016-023>025-035-036-180100-
   NORTH CENTRAL IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALGONA *       CLOUDY    66  64  94 NE7       30.25S TC  19           
CLARION *      CLOUDY    68  68 100 NE8       30.25R TC  20           
ESTHERVILLE    CLOUDY    65  61  87 NE6       30.27S TC  18           
6HR MIN TEMP:  65; 6HR MAX TEMP:  68;                                

FORT DODGE *   CLOUDY    70  65  84 NE10      30.24S TC  21           
MASON CITY     CLOUDY    66  61  84 NE9       30.26R TC  19           
6HR MIN TEMP:  66; 6HR MAX TEMP:  69;                                

FOREST CITY *  CLOUDY    64  59  82 N6        30.27R TC  18           
WEBSTER CITY * CLOUDY    72  70  94 N12       30.23R TC  22           
IOWA FALLS *   CLOUDY    71  66  83 NE7       30.25R TC  22           
HAMPTON *      CLOUDY    64  63  94 N7        30.25R 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

Duncan, IA

Tonight
Thunderstorms
58°14°
70%
Friday
Thunderstorms
70°/ 68° 21°/ 20°
90%
Saturday
Thunderstorms
72°/ 55° 22°/ 13°
50%
Sunday
Thunderstorms
62°/ 52° 17°/ 11°
60%
Monday
Rain Showers
58°/ 48° 14°/
50%
Tuesday
Mostly Cloudy
60°/ 48° 16°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
30%
Thursday
Rain Showers
68°20°
20%

Night: Mostly cloudy. Showers likely with a slight chance of thunderstorms after midnight. Lows in the upper 50s. East winds 5 to 10 mph. Chance of rain 70 percent.

Forest City, IA

Tonight
Thunderstorms
58°14°
50%
Friday
Thunderstorms
68°/ 65° 20°/ 18°
90%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
50%
Sunday
Rain Showers
62°/ 52° 17°/ 11°
50%
Monday
Rain Showers
58°/ 48° 14°/
50%
Tuesday
Mostly Cloudy
60°/ 48° 16°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
30%
Thursday
Rain Showers
68°20°
20%

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

Mason City, IA

Tonight
Rain Showers
58°14°
50%
Friday
Thunderstorms
68°/ 65° 20°/ 18°
90%
Saturday
Thunderstorms
72°/ 58° 22°/ 14°
70%
Sunday
Thunderstorms
62°/ 52° 17°/ 11°
60%
Monday
Rain Showers
58°/ 48° 14°/
50%
Tuesday
Partly Cloudy
58°/ 48° 14°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
20%
Thursday
Rain Showers
68°20°
20%

Night: Mostly cloudy. A chance of showers after midnight. Lows in the upper 50s. East winds 5 to 10 mph. Chance of rain 50 percent.

Algona, IA

Tonight
Thunderstorms
58°14°
70%
Friday
Thunderstorms
72°/ 62° 22°/ 17°
90%
Saturday
Rain Showers
70°/ 55° 21°/ 13°
50%
Sunday
Thunderstorms
65°/ 52° 18°/ 11°
50%
Monday
Rain Showers
58°/ 48° 14°/
50%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
30%
Thursday
Rain Showers
68°20°
20%

Night: Mostly cloudy. Showers likely with a slight chance of thunderstorms after midnight. Lows in the upper 50s. East winds 5 to 10 mph. Chance of rain 70 percent.

Northwood, IA

Tonight
Rain Showers
58°14°
20%
Friday
Thunderstorms
65°/ 65° 18°/ 18°
90%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
70%
Sunday
Rain Showers
62°/ 52° 17°/ 11°
50%
Monday
Rain Showers
58°/ 48° 14°/
50%
Tuesday
Partly Cloudy
60°/ 48° 16°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
20%
Thursday
Rain Showers
68°20°
20%

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

Eagle Grove, IA

Tonight
Thunderstorms
60°16°
70%
Friday
Thunderstorms
75°/ 65° 24°/ 18°
90%
Saturday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Sunday
Thunderstorms
65°/ 52° 18°/ 11°
60%
Monday
Rain Showers
55°/ 48° 13°/
50%
Tuesday
Mostly Cloudy
60°/ 48° 16°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
30%
Thursday
Rain Showers
68°20°
30%

Night: Mostly cloudy. Showers likely with a chance of thunderstorms after midnight. Lows around 60. East winds 5 to 10 mph. Chance of rain 70 percent.

Humboldt, IA

Tonight
Thunderstorms
62°17°
80%
Friday
Thunderstorms
75°/ 65° 24°/ 18°
70%
Saturday
Thunderstorms
75°/ 58° 24°/ 14°
50%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
60%
Monday
Rain Showers
58°/ 50° 14°/ 10°
60%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 55° 18°/ 13°
20%
Thursday
Rain Showers
68°20°
30%

Night: Mostly cloudy. Showers with a chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the lower 60s. East winds 5 to 10 mph. Chance of rain 80 percent.

Hampton, IA

Tonight
Thunderstorms
60°16°
50%
Friday
Thunderstorms
72°/ 65° 22°/ 18°
90%
Saturday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Sunday
Thunderstorms
65°/ 52° 18°/ 11°
70%
Monday
Rain Showers
55°/ 50° 13°/ 10°
70%
Tuesday
Mostly Cloudy
60°/ 48° 16°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
20%
Thursday
Rain Showers
68°20°
20%

Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Lows around 60. East winds 5 to 10 mph. Chance of rain 50 percent.

Fort Dodge, IA

Tonight
Thunderstorms
62°17°
70%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
80%
Saturday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
60%
Monday
Rain Showers
58°/ 52° 14°/ 11°
60%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 55° 18°/ 13°
30%
Thursday
Rain Showers
68°20°
30%

Night: Mostly cloudy. Showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. East winds 5 to 10 mph. Chance of rain 70 percent.

Emmetsburg, IA

Tonight
Thunderstorms
60°16°
90%
Friday
Thunderstorms
75°/ 62° 24°/ 17°
80%
Saturday
Rain Showers
70°/ 58° 21°/ 14°
50%
Sunday
Rain Showers
62°/ 52° 17°/ 11°
60%
Monday
Rain Showers
58°/ 50° 14°/ 10°
50%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
30%
Thursday
Rain Showers
68°20°
30%

Night: Cloudy. Showers with a chance of thunderstorms after midnight. Patchy fog after midnight. Lows around 60. East winds 5 to 10 mph. Chance of rain 90 percent.

Parkersburg, IA

Tonight
Rain Showers
60°16°
40%
Friday
Thunderstorms
72°/ 65° 22°/ 18°
90%
Saturday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
58°/ 50° 14°/ 10°
50%
Tuesday
Partly Cloudy
60°/ 48° 16°/
0%
Wednesday
Sunny
65°/ 52° 18°/ 11°
20%
Thursday
Rain Showers
68°20°
20%

Night: Mostly cloudy. A chance of showers after midnight. Patchy fog after midnight. Lows around 60. Northeast winds around 5 mph. Chance of rain 40 percent.

Estherville, IA

Tonight
Thunderstorms
58°14°
80%
Friday
Thunderstorms
72°/ 62° 22°/ 17°
90%
Saturday
Rain Showers
68°/ 55° 20°/ 13°
50%
Sunday
Rain Showers
62°/ 52° 17°/ 11°
50%
Monday
Rain Showers
58°/ 48° 14°/
50%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 52° 18°/ 11°
30%
Thursday
Rain Showers
68°20°
30%

Night: Cloudy. Showers with a chance of thunderstorms after midnight. Lows in the upper 50s. East winds 5 to 10 mph. Chance of rain 80 percent.

Webster City, IA

Tonight
Thunderstorms
62°17°
70%
Friday
Thunderstorms
78°/ 68° 26°/ 20°
90%
Saturday
Thunderstorms
78°/ 60° 26°/ 16°
70%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
58°/ 52° 14°/ 11°
50%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 55° 18°/ 13°
30%
Thursday
Rain Showers
68°20°
20%

Night: Mostly cloudy. Showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. East winds 5 to 10 mph. Chance of rain 70 percent.

Iowa Falls, IA

Tonight
Thunderstorms
62°17°
50%
Friday
Thunderstorms
75°/ 68° 24°/ 20°
90%
Saturday
Thunderstorms
78°/ 60° 26°/ 16°
70%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
58°/ 52° 14°/ 11°
60%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 55° 18°/ 13°
30%
Thursday
Rain Showers
68°20°
20%

Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Pocahontas, IA

Tonight
Thunderstorms
62°17°
80%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
70%
Saturday
Thunderstorms
72°/ 58° 22°/ 14°
50%
Sunday
Thunderstorms
65°/ 52° 18°/ 11°
60%
Monday
Thunderstorms
58°/ 50° 14°/ 10°
60%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Partly Cloudy
65°/ 55° 18°/ 13°
40%
Thursday
Rain Showers
68°20°
20%

Night: Cloudy. Showers with a chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the lower 60s. East winds 5 to 10 mph. Chance of rain 80 percent.

Rockwell City, IA

Tonight
Thunderstorms
62°17°
70%
Friday
Thunderstorms
82°/ 65° 28°/ 18°
90%
Saturday
Thunderstorms
78°/ 58° 26°/ 14°
60%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
60%
Monday
Thunderstorms
58°/ 52° 14°/ 11°
60%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
40%
Thursday
Rain Showers
68°20°
40%

Night: Mostly cloudy. A slight chance of showers this evening, then showers likely with a chance of thunderstorms after midnight. Lows in the lower 60s. East winds 5 to 10 mph. Chance of rain 70 percent.

Grundy Center, IA

Tonight
Thunderstorms
62°17°
40%
Friday
Thunderstorms
75°/ 68° 24°/ 20°
90%
Saturday
Thunderstorms
78°/ 60° 26°/ 16°
70%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
58°/ 52° 14°/ 11°
60%
Tuesday
Mostly Cloudy
62°/ 48° 17°/
0%
Wednesday
Sunny
65°/ 55° 18°/ 13°
20%
Thursday
Rain Showers
68°20°
20%

Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Patchy fog after midnight. Lows in the lower 60s. Northeast winds around 5 mph. Chance of rain 40 percent.

Waverly, IA

Tonight
Mostly Cloudy
60°16°
0%
Friday
Thunderstorms
70°/ 68° 21°/ 20°
90%
Saturday
Thunderstorms
75°/ 58° 24°/ 14°
70%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
60%
Monday
Rain Showers
58°/ 50° 14°/ 10°
50%
Tuesday
Partly Cloudy
60°/ 48° 16°/
0%
Wednesday
Sunny
65°/ 52° 18°/ 11°
0%
Thursday
Rain Showers
68°20°
20%

Night: Mostly cloudy. Patchy fog after midnight. Lows around 60. Northeast winds 5 to 10 mph.

Ames, IA

Tonight
Thunderstorms
65°18°
50%
Friday
Thunderstorms
78°/ 68° 26°/ 20°
90%
Saturday
Thunderstorms
80°/ 62° 27°/ 17°
70%
Sunday
Thunderstorms
65°/ 58° 18°/ 14°
70%
Monday
Rain Showers
58°/ 55° 14°/ 13°
50%
Tuesday
Mostly Cloudy
62°/ 52° 17°/ 11°
0%
Wednesday
Partly Cloudy
65°/ 55° 18°/ 13°
30%
Thursday
Rain Showers
68°20°
30%

Night: Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the mid 60s. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

Boone, IA

Tonight
Thunderstorms
62°17°
50%
Friday
Thunderstorms
80°/ 68° 27°/ 20°
80%
Saturday
Thunderstorms
78°/ 62° 26°/ 17°
70%
Sunday
Thunderstorms
62°/ 55° 17°/ 13°
70%
Monday
Rain Showers
58°/ 52° 14°/ 11°
50%
Tuesday
Mostly Cloudy
62°/ 50° 17°/ 10°
0%
Wednesday
Partly Cloudy
65°/ 55° 18°/ 13°
30%
Thursday
Rain Showers
68°20°
30%

Night: Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the lower 60s. East winds 5 to 10 mph. Chance of rain 50 percent.

Names listed above may include county names.

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