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State Forecast for
Cedar Rapids , IA
Change Zip Code:
381
FPUS63 KDMX 172121
SFTIA
IAZ001>099-181000-
Tabular State Forecast for Iowa
National Weather Service Des Moines IA
420 PM CDT Thu Sep 17 2026
ROWS INCLUDE...
Daily predominant daytime weather 6AM-6PM
Forecast temperatures...early morning low/daytime high
Probability of precipitation nighttime 6PM-6AM/daytime 6AM-6PM
- indicates temperatures below zero
MM indicates missing data
FCST
FCST
FCST
FCST
FCST
FCST
FCST
Fri
Sat
Sun
Mon
Tue
Wed
Thu
Sep 18
Sep 19
Sep 20
Sep 21
Sep 22
Sep 23
Sep 24
...WESTERN IOWA...
Spencer
Mocldy
Mocldy
Mocldy
Mocldy
Mocldy
Ptcldy
Ptcldy
58/76
60/69
53/63
49/59
46/62
45/65
50/68
90/90
60/50
50/50
60/60
30/10
10/10
30/30
Sioux City
Ptcldy
Mocldy
Mocldy
Mocldy
Mocldy
Mocldy
Mocldy
64/86
64/73
58/64
55/60
51/64
51/66
55/70
70/40
50/40
40/40
50/60
30/10
10/30
40/40
Carroll
Mocldy
Shwrs
Shwrs
Shwrs
Mocldy
Mocldy
Mocldy
64/84
68/79
60/67
56/61
52/62
50/66
55/70
50/40
80/70
60/70
60/60
30/10
00/10
30/40
Atlantic
Ptcldy
Shwrs
Shwrs
Shwrs
Mocldy
Ptcldy
Mocldy
66/85
69/79
62/67
57/61
53/62
51/65
56/68
20/10
60/60
70/60
60/50
40/10
00/20
40/40
Shenandoah
Ptcldy
Ptcldy
Mocldy
Mocldy
Mocldy
Mocldy
Mocldy
69/88
70/84
64/70
60/64
56/64
53/67
58/71
10/10
60/60
70/60
50/40
20/20
00/20
40/40
...CENTRAL IOWA...
Mason City
Tstrms
Shwrs
Shwrs
Shwrs
Ptcldy
Ptcldy
Ptcldy
58/68
62/70
56/63
51/58
48/60
46/64
51/67
40/80
90/70
60/50
60/60
40/20
00/10
20/20
Fort Dodge
Tstrms
Shwrs
Shwrs
Shwrs
Mocldy
Ptcldy
Ptcldy
62/78
66/76
59/65
55/60
51/62
49/66
54/69
80/80
80/70
60/60
60/60
40/20
00/10
30/30
Ames
Tstrms
Shwrs
Tstrms
Shwrs
Mocldy
Ptcldy
Mocldy
63/80
68/80
61/67
57/61
53/61
50/66
55/69
50/60
80/80
70/70
70/60
40/30
00/10
30/30
Marshalltown
Tstrms
Shwrs
Tstrms
Shwrs
Mocldy
Ptcldy
Ptcldy
62/76
67/80
60/66
54/60
51/61
48/65
53/68
40/70
70/70
70/70
60/60
40/30
00/00
20/30
Des Moines
Mocldy
Tstrms
Tstrms
Shwrs
Mocldy
Ptcldy
Mocldy
66/83
71/81
63/68
58/61
55/61
52/65
57/68
40/40
60/60
80/70
60/60
40/30
00/10
30/40
Creston
Ptcldy
Tstrms
Tstrms
Shwrs
Mocldy
Ptcldy
Ptcldy
66/85
69/82
64/69
59/61
55/60
51/64
57/68
20/10
60/60
70/70
70/60
30/10
00/10
30/40
Lamoni
Ptcldy
Ptcldy
Tstrms
Shwrs
Mocldy
Ptcldy
Ptcldy
67/85
70/83
65/71
60/62
54/60
51/64
56/68
10/10
40/40
70/70
70/70
20/20
20/10
20/30
...EASTERN IOWA...
Decorah
Mocldy
Mocldy
Mocldy
Mocldy
Ptcldy
Ptcldy
Ptcldy
57/66
60/71
57/64
52/60
48/60
46/65
51/67
10/80
90/90
70/50
50/50
40/20
10/00
10/20
Oelwein
Mocldy
Mocldy
Mocldy
Mocldy
Ptcldy
Ptcldy
Ptcldy
60/70
64/76
60/64
55/60
51/60
48/65
53/67
20/70
90/90
80/60
60/60
40/20
10/00
10/20
Waterloo
Tstrms
Shwrs
Tstrms
Shwrs
Ptcldy
Ptcldy
Ptcldy
61/72
66/78
60/66
55/61
51/61
48/66
53/69
30/70
80/80
70/60
60/60
40/30
00/00
10/20
Dubuque
Mocldy
Mocldy
Mocldy
Mocldy
Ptcldy
Ptcldy
Ptcldy
62/71
65/78
63/66
57/63
53/62
51/67
54/69
10/40
90/90
80/70
60/60
40/20
10/10
10/10
Cedar Rapids
Mocldy
Mocldy
Mocldy
Mocldy
Ptcldy
Ptcldy
Ptcldy
64/75
68/81
64/68
58/62
54/62
51/66
55/69
20/50
70/70
80/80
60/60
50/30
10/00
10/20
Iowa City
Mocldy
Mocldy
Mocldy
Mocldy
Mocldy
Ptcldy
Ptcldy
65/77
68/82
65/70
59/63
55/62
51/67
56/70
20/40
60/70
80/80
70/60
50/30
00/00
10/20
Quad Cities
Mocldy
Mocldy
Mocldy
Mocldy
Mocldy
Ptcldy
Ptcldy
64/76
67/82
64/70
58/64
54/63
51/68
54/70
10/40
50/80
80/80
60/70
50/30
10/00
10/10
Ottumwa
Tstrms
Shwrs
Tstrms
Shwrs
Mocldy
Ptcldy
Ptcldy
67/82
71/84
66/72
60/64
56/62
52/67
56/70
30/60
40/50
80/80
70/60
30/20
00/10
10/20
Burlington
Mocldy
Mocldy
Mocldy
Mocldy
Mocldy
Ptcldy
Ptcldy
66/82
69/85
66/75
60/66
55/63
51/68
55/71
20/50
30/30
80/80
70/60
50/30
20/00
10/10
Keokuk
Mocldy
Mocldy
Mocldy
Mocldy
Mocldy
Ptcldy
Ptcldy
69/85
72/88
69/78
63/68
58/65
54/70
58/72
30/40
10/20
70/70
60/60
40/30
00/10
10/20
$$
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Bryce Anderson
–
DTN Meteorologist
Bio
South Dakota Becomes the Target for Heavy Rain Tonight
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Posted at 11:33AM Thu Sep 17, 2026 CDT
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