Regional Weather Roundup
Issued by NWS

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956
ASUS43 KDMX 211010
RWRIA

WEATHER ROUNDUP FOR IOWA
NATIONAL WEATHER SERVICE DES MOINES IA
500 AM CDT THU MAY 21 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>046-211100-
   NORTHWEST IOWA

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CARROLL *      CLOUDY    48  46  93 CALM      30.20S TC   9
CHEROKEE *     MOCLDY    46  46 100 NE3       30.20S TC   8
DENISON *        N/A     48  48 100 CALM      30.22R TC   9
LE MARS *      CLOUDY   N/A N/A N/A NE5       30.19R
MAURICE *      CLOUDY    48  45  87 E9        30.18F TC   9
SHELDON *      MOCLDY    48  48 100 E6        30.18S TC   9
SIOUX CITY     CLOUDY    51  43  74 SE5       30.20R TC  11
SPENCER        MOCLDY    46  44  93 E6        30.21F TC   8
STORM LAKE *   CLOUDY    48  43  81 E9        30.20S TC   9
$$

IAZ055>058-069>071-079>083-090>094-211100-
   SOUTHWEST IOWA

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ATLANTIC *     CLOUDY    52  46  82 NE5       30.19R TC  11
AUDUBON *        N/A     50  46  87 CALM      30.21R TC  10
CLARINDA *     CLOUDY    54  50  87 NE7       30.19S TC  12
COUNCIL BLFS * CLOUDY    50  46  87 E5        30.19R TC  10
CRESTON *      MOCLDY    52  48  87 E9        30.18R TC  11
HARLAN  *      CLOUDY    50  43  76 CALM      30.21R TC  10
LAMONI         MOCLDY    51  48  89 N6        30.16R TC  11
RED OAK *      MOCLDY    50  46  87 NE5       30.19R TC  10
SHENANDOAH *   CLOUDY    52  52 100 NE8       30.16S TC  11
$$

IAZ047>049-059>061-072>074-084-211100-
   CENTRAL IOWA

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
AMES           CLOUDY    53  46  77 E8        30.21R TC  12
ANKENY *       MOCLDY    54  46  76 E13G20    30.21S TC  12
BOONE *        CLOUDY    52  52 100 E9        30.19R TC  11
CHARITON *     MOCLDY    52  52 100 E10       30.19R TC  11
DES MOINES     CLOUDY    54  46  74 E17       30.19S TC  12
GRINNELL*      CLOUDY    51  42  70 E15       30.23F TC  11
KNOXVILLE *    CLOUDY    52  46  82 E13G23    30.18F TC  11
MARSHALLTOWN   CLOUDY    51  44  77 E12       30.22F TC  11
NEWTON *       MOCLDY    52  46  82 E16       30.19F TC  11
PELLA *        CLOUDY    52  44  73 E9G17     30.21F TC  11
PERRY *        CLOUDY    52  47  84 E7        30.19R TC  11
$$

IAZ004>006-015-016-023>025-035-036-211100-
   NORTH CENTRAL IOWA

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
ALGONA *       CLOUDY    50  50 100 E7        30.21F TC  10
CLARION *      CLOUDY    50  50 100 E10       30.22S TC  10
ESTHERVILLE    CLOUDY    48  45  89 NE6       30.21F TC   9
FORT DODGE *   CLOUDY    51  45  79 NE6       30.22S TC  11
MASON CITY     MOCLDY    51  44  77 E12       30.23F TC  11
FOREST CITY *  MOCLDY    50  43  76 E6        30.24S TC  10
WEBSTER CITY * CLOUDY    52  46  82 E12       30.20R TC  11
IOWA FALLS *   CLOUDY    52  46  79 E10       30.24S TC  11
HAMPTON *      MOCLDY    46  43  87 E8        30.24R TC   8
$$

IAZ007>011-017>019-026>030-037>042-050>054-066-211100-
   NORTHEAST IOWA

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CEDAR RAPIDS   MOCLDY    49  38  65 E12       30.25F TC   9
CHARLES CITY * MOCLDY    50  45  81 SE9G15    30.26S TC  10
CLINTON *      PTCLDY    47  37  68 E13       30.29F TC   8
DECORAH *      CLOUDY    50  43  76 E7        30.28S TC  10
DUBUQUE        MOCLDY    46  37  71 NE9       30.31S TC   8
MONTICELLO *   DRZL/FOG  48  39  71 E7        30.27S VSB 1/2 TC   9
OELWEIN *      CLOUDY    48  43  81 E12       30.27F TC   9
WATERLOO       CLOUDY    51  41  68 E9        30.25F TC  11
$$

IAZ064-065-067-068-078-211100-
   EAST CENTRAL IOWA

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
DAVENPORT      PTCLDY    47  36  65 NE8       30.28S TC   8
IOWA CITY      MOCLDY    51  38  60 E7        30.27F TC  11
MT. PLEASANT * PTCLDY    46  37  71 E7        30.25S TC   8
MUSCATINE *    CLEAR     52  36  54 E6        30.27S TC  11
QUAD CITIES    MOCLDY    49  35  58 NE9       30.27S TC   9
$$

IAZ062-063-075>077-085>089-095>099-211100-
   SOUTHEAST IOWA

CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
BURLINGTON     PTCLDY    49  37  63 E10       30.24R TC   9
FORT MADISON * PTCLDY    50  39  66 NE9       30.24S TC  10
KEOKUK *       CLOUDY    50  37  62 E12       30.23S TC  10
OSKALOOSA *    CLOUDY    52  44  74 E14G20    30.21F TC  11
OTTUMWA        CLOUDY    51  41  68 E17       30.20F TC  11
WASHINGTON *   MOCLDY    50  39  66 E8G14     30.24S TC  10
$$

ABBREVIATIONS USED IN REMARKS
   TC - TEMPERATURES IN CELSIUS
  WCI - WIND CHILL INDEX
   HX - HEAT INDEX
  VSB - VISIBILITY
$$