Alton, IA Weather Forecast & Current Conditions

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Alton, IA Weather Maps

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Alton Weather Map
UTC Time: 10/30/2026, 06:37
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Alton, IA Regional Weather

Expires:202610300700;;949296
ASUS43 KFSD 300610
RWRFSD

WEATHER ROUNDUP FOR SE SOUTH DAKOTA/SW MINNESOTA/NW IOWA
NATIONAL WEATHER SERVICE SIOUX FALLS SD
100 AM CDT FRI OCT 30 2026

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



IAZ001>003-012>014-020>022-031-032-NEZ013-014-SDZ071-300700-
NORTHWEST IOWA
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHEROKEE       CLOUDY    45  41  87 NE9       30.23F TC   7           
DENISON        CLOUDY    50  43  76 E9        30.21F TC  10           
ESTHERVILLE    CLEAR     37  36  96 CALM      30.27R TC   3           
LE MARS        CLOUDY    52  39  62 E9G15     30.20F TC  11           
MAURICE        CLOUDY    46  39  76 E9        30.22F TC   8           
SHELDON        CLEAR     43  43 100 E9        30.22F TC   6           
SIOUX CITY     CLOUDY    50  42  74 E7        30.21S TC  10           
6HR MIN TEMP:  46; 6HR MAX TEMP:  57;                                

SPENCER        CLEAR     37  35  92 NE6       30.26S TC   3           
6HR MIN TEMP:  36; 6HR MAX TEMP:  49;                                

STORM LAKE     CLOUDY    46  39  76 E12       30.23F TC   8           
$$
 
ABBREVIATIONS USED IN REMARKS
   TC - TEMPERATURE IN CELSIUS
  WCI - WIND CHILL INDEX
   HX - HEAT INDEX
  VSB - VISIBILITY

  

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

Alton, IA

Overnight
Cloudy
42°6°
0%
Friday
Rain Showers
52°/ 48° 11°/ 9°
70%
Saturday
Rain Showers
62°/ 52° 17°/ 11°
50%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
70%
Monday
Thunderstorms
62°/ 52° 17°/ 11°
90%
Tuesday
Rain Showers
60°/ 45° 16°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
50%
Thursday
Mostly Cloudy
48°9°
0%

Night: Clear late this evening, then becoming partly cloudy. Near steady temperature in the lower 40s. East winds 5 to 10 mph.

Le Mars, IA

Overnight
Mostly Cloudy
45°7°
0%
Friday
Rain Showers
52°/ 48° 11°/ 9°
70%
Saturday
Rain Showers
62°/ 52° 17°/ 11°
40%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
70%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
90%
Tuesday
Rain Showers
60°/ 45° 16°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
50%
Thursday
Partly Cloudy
50°10°
0%

Night: Clear late this evening, then becoming mostly cloudy. Near steady temperature in the mid 40s. East winds 5 to 10 mph.

Sheldon, IA

Overnight
Cloudy
42°6°
0%
Friday
Rain Showers
50°/ 45° 10°/ 7°
60%
Saturday
Rain Showers
62°/ 50° 17°/ 10°
50%
Sunday
Mostly Cloudy
62°/ 52° 17°/ 11°
50%
Monday
Thunderstorms
62°/ 52° 17°/ 11°
90%
Tuesday
Rain Showers
62°/ 45° 17°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
50%
Thursday
Rain Showers
48°9°
30%

Night: Clear late this evening, then becoming partly cloudy. Near steady temperature in the lower 40s. East winds 5 to 10 mph.

Cherokee, IA

Overnight
Cloudy
45°7°
0%
Friday
Rain Showers
52°/ 48° 11°/ 9°
60%
Saturday
Rain Showers
62°/ 50° 17°/ 10°
50%
Sunday
Mostly Cloudy
65°/ 52° 18°/ 11°
60%
Monday
Thunderstorms
62°/ 52° 17°/ 11°
90%
Tuesday
Rain Showers
62°/ 45° 17°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
50%
Thursday
Rain Showers
48°9°
30%

Night: Partly cloudy. Near steady temperature in the mid 40s. East winds 5 to 10 mph.

Rock Rapids, IA

Overnight
Cloudy
42°6°
0%
Friday
Mostly Cloudy
52°/ 45° 11°/ 7°
60%
Saturday
Rain Showers
62°/ 50° 17°/ 10°
50%
Sunday
Rain Showers
62°/ 52° 17°/ 11°
70%
Monday
Thunderstorms
62°/ 52° 17°/ 11°
90%
Tuesday
Rain Showers
58°/ 45° 14°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
50%
Thursday
Mostly Cloudy
48°9°
0%

Night: Clear late this evening, then becoming partly cloudy. Near steady temperature in the lower 40s. East winds around 5 mph.

Canton, SD

Overnight
Cloudy
42°6°
0%
Friday
Mostly Cloudy
52°/ 48° 11°/ 9°
50%
Saturday
Rain Showers
62°/ 52° 17°/ 11°
50%
Sunday
Mostly Cloudy
62°/ 55° 17°/ 13°
70%
Monday
Thunderstorms
62°/ 52° 17°/ 11°
90%
Tuesday
Rain Showers
58°/ 45° 14°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
40%
Thursday
Partly Cloudy
48°9°
0%

Night: Clear late this evening, then becoming partly cloudy. Near steady temperature in the lower 40s. East winds 5 to 10 mph.

Sibley, IA

Overnight
Cloudy
40°4°
0%
Friday
Mostly Cloudy
50°/ 45° 10°/ 7°
70%
Saturday
Rain Showers
60°/ 50° 16°/ 10°
50%
Sunday
Mostly Cloudy
62°/ 52° 17°/ 11°
50%
Monday
Thunderstorms
62°/ 52° 17°/ 11°
90%
Tuesday
Rain Showers
62°/ 45° 17°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
50%
Thursday
Rain Showers
48°9°
30%

Night: Clear late this evening, then becoming partly cloudy. Near steady temperature around 40. East winds 5 to 10 mph.

North Sioux City, SD

Overnight
Mostly Cloudy
45°7°
0%
Friday
Rain Showers
55°/ 48° 13°/ 9°
50%
Saturday
Rain Showers
62°/ 52° 17°/ 11°
40%
Sunday
Mostly Cloudy
65°/ 55° 18°/ 13°
70%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
90%
Tuesday
Rain Showers
58°/ 45° 14°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
40%
Thursday
Partly Cloudy
50°10°
0%

Night: Clear late this evening, then becoming mostly cloudy. Near steady temperature in the mid 40s. East winds 5 to 10 mph.

Sioux City, IA

Overnight
Rain Showers
48°9°
20%
Friday
Rain Showers
55°/ 48° 13°/ 9°
50%
Saturday
Rain Showers
65°/ 50° 18°/ 10°
50%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
70%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
90%
Tuesday
Rain Showers
62°/ 45° 17°/ 7°
70%
Wednesday
Rain Showers
55°/ 38° 13°/ 3°
50%
Thursday
Partly Cloudy
52°11°
0%

Night: Mostly clear late this evening, then mostly cloudy with a slight chance of showers. Near steady temperature in the upper 40s. East winds 5 to 10 mph. Chance of rain 20 percent.

Spencer, IA

Overnight
Cloudy
42°6°
0%
Friday
Rain Showers
50°/ 45° 10°/ 7°
70%
Saturday
Rain Showers
62°/ 48° 17°/ 9°
50%
Sunday
Mostly Cloudy
65°/ 52° 18°/ 11°
50%
Monday
Rain Showers
62°/ 52° 17°/ 11°
90%
Tuesday
Rain Showers
62°/ 45° 17°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
50%
Thursday
Rain Showers
48°9°
30%

Night: Clear late this evening, then becoming partly cloudy. Near steady temperature in the lower 40s. East winds around 5 mph.

Worthington, MN

Overnight
Cloudy
38°3°
0%
Friday
Mostly Cloudy
50°/ 45° 10°/ 7°
60%
Saturday
Rain Showers
58°/ 48° 14°/ 9°
50%
Sunday
Mostly Cloudy
62°/ 52° 17°/ 11°
50%
Monday
Rain Showers
60°/ 52° 16°/ 11°
90%
Tuesday
Rain Showers
58°/ 45° 14°/ 7°
70%
Wednesday
Rain Showers
50°/ 38° 10°/ 3°
50%
Thursday
Rain Showers
45°7°
30%

Night: Mostly clear late this evening, then becoming partly cloudy. Near steady temperature in the upper 30s. East winds around 5 mph.

Luverne, MN

Overnight
Clear
40°4°
0%
Friday
Mostly Cloudy
52°/ 45° 11°/ 7°
70%
Saturday
Rain Showers
60°/ 50° 16°/ 10°
50%
Sunday
Mostly Cloudy
62°/ 52° 17°/ 11°
60%
Monday
Thunderstorms
62°/ 52° 17°/ 11°
90%
Tuesday
Rain Showers
58°/ 45° 14°/ 7°
60%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
50%
Thursday
Mostly Cloudy
48°9°
0%

Night: Mostly clear. Near steady temperature around 40. East winds around 5 mph.

Storm Lake, IA

Overnight
Cloudy
45°7°
0%
Friday
Rain Showers
52°/ 48° 11°/ 9°
70%
Saturday
Rain Showers
62°/ 48° 17°/ 9°
50%
Sunday
Partly Cloudy
65°/ 52° 18°/ 11°
50%
Monday
Thunderstorms
62°/ 52° 17°/ 11°
90%
Tuesday
Rain Showers
62°/ 45° 17°/ 7°
70%
Wednesday
Rain Showers
55°/ 38° 13°/ 3°
50%
Thursday
Rain Showers
50°10°
30%

Night: Clear late this evening, then becoming partly cloudy. Near steady temperature in the mid 40s. East winds 5 to 10 mph.

South Sioux City, NE

Overnight
Mostly Cloudy
48°9°
0%
Friday
Rain Showers
55°/ 48° 13°/ 9°
70%
Saturday
Rain Showers
65°/ 50° 18°/ 10°
30%
Sunday
Mostly Cloudy
65°/ 55° 18°/ 13°
70%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
90%
Tuesday
Rain Showers
60°/ 45° 16°/ 7°
70%
Wednesday
Rain Showers
55°/ 38° 13°/ 3°
40%
Thursday
Partly Cloudy
52°11°
0%

Night: Clear late this evening, then becoming mostly cloudy. Near steady temperature in the upper 40s. East winds 5 to 10 mph.

Ida Grove, IA

Overnight
Mostly Cloudy
48°9°
0%
Friday
Rain Showers
52°/ 45° 11°/ 7°
70%
Saturday
Rain Showers
65°/ 50° 18°/ 10°
50%
Sunday
Partly Cloudy
65°/ 55° 18°/ 13°
60%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
90%
Tuesday
Rain Showers
62°/ 45° 17°/ 7°
70%
Wednesday
Rain Showers
55°/ 38° 13°/ 3°
50%
Thursday
Rain Showers
52°11°
30%

Night: Mostly clear late this evening, then becoming mostly cloudy. Near steady temperature in the upper 40s. East winds 5 to 10 mph.

Vermillion, SD

Overnight
Cloudy
45°7°
0%
Friday
Rain Showers
55°/ 48° 13°/ 9°
50%
Saturday
Rain Showers
62°/ 52° 17°/ 11°
40%
Sunday
Mostly Cloudy
65°/ 55° 18°/ 13°
70%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
90%
Tuesday
Rain Showers
58°/ 45° 14°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
40%
Thursday
Partly Cloudy
50°10°
0%

Night: Partly cloudy. Near steady temperature in the mid 40s. East winds 5 to 10 mph.

Wakefield, NE

Overnight
Mostly Cloudy
48°9°
0%
Friday
Rain Showers
55°/ 48° 13°/ 9°
60%
Saturday
Rain Showers
62°/ 50° 17°/ 10°
40%
Sunday
Mostly Cloudy
65°/ 55° 18°/ 13°
70%
Monday
Thunderstorms
65°/ 52° 18°/ 11°
90%
Tuesday
Rain Showers
58°/ 45° 14°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
40%
Thursday
Partly Cloudy
50°10°
0%

Night: Clear late this evening, then becoming mostly cloudy. Near steady temperature in the upper 40s. East winds 5 to 10 mph.

Sioux Falls, SD

Overnight
Clear
40°4°
0%
Friday
Mostly Cloudy
52°/ 45° 11°/ 7°
70%
Saturday
Rain Showers
62°/ 50° 17°/ 10°
50%
Sunday
Mostly Cloudy
62°/ 52° 17°/ 11°
70%
Monday
Thunderstorms
62°/ 52° 17°/ 11°
90%
Tuesday
Rain Showers
58°/ 45° 14°/ 7°
60%
Wednesday
Rain Showers
50°/ 38° 10°/ 3°
50%
Thursday
Partly Cloudy
48°9°
0%

Night: Mostly clear. Lows around 40. East winds 5 to 10 mph.

Spirit Lake, IA

Overnight
Clear
38°3°
0%
Friday
Cloudy
48°/ 45° 9°/ 7°
60%
Saturday
Rain Showers
58°/ 48° 14°/ 9°
60%
Sunday
Mostly Cloudy
62°/ 52° 17°/ 11°
40%
Monday
Rain Showers
62°/ 52° 17°/ 11°
90%
Tuesday
Rain Showers
62°/ 45° 17°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
50%
Thursday
Rain Showers
48°9°
30%

Night: Mostly clear. Lows in the upper 30s. East winds around 5 mph.

Parker, SD

Overnight
Cloudy
42°6°
0%
Friday
Mostly Cloudy
55°/ 48° 13°/ 9°
50%
Saturday
Rain Showers
62°/ 52° 17°/ 11°
40%
Sunday
Mostly Cloudy
62°/ 55° 17°/ 13°
70%
Monday
Thunderstorms
62°/ 52° 17°/ 11°
90%
Tuesday
Rain Showers
58°/ 45° 14°/ 7°
70%
Wednesday
Rain Showers
52°/ 38° 11°/ 3°
40%
Thursday
Partly Cloudy
48°9°
0%

Night: Mostly clear late this evening, then becoming partly cloudy. Lows in the lower 40s. East winds 5 to 10 mph.

Names listed above may include county names.

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