Hamilton County, IA Weather Forecast
County weather hub
Mostly Clear
Compare major city weather across Hamilton County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly clear. Low around 48, with temperatures rising to around 50 overnight. West northwest wind around 6 mph. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Hamilton County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Hamilton County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 16 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 4:42 AM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Hamilton County
Friday looks like the warmest upcoming period in Hamilton County at 78 degrees F.
Saturday Night is the coolest period ahead with temperatures near 30 degrees F.
The strongest winds are forecast for Friday at about 17 to 24 mph SSW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 4:42 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- DMX
- Radar station
- KDMX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Sunny. High near 77, with temperatures falling to around 75 in the afternoon. South southwest wind 3 to 14 mph, with gusts as high as 18 mph. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 57. South southeast wind 12 to 16 mph, with gusts as high as 22 mph.
A slight chance of showers and thunderstorms between 7am and 1pm, then showers and thunderstorms likely. Partly sunny. High near 78, with temperatures falling to around 65 in the afternoon. South southwest wind 17 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely. Partly cloudy, with a low around 32. Northwest wind 18 to 22 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of rain showers before 7am. Sunny, with a high near 50. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 30.
Sunny, with a high near 58.
Mostly clear, with a low around 34.
Sunny, with a high near 69.
Mostly clear, with a low around 48.
Sunny, with a high near 74.
Mostly clear, with a low around 48.
Sunny, with a high near 72.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 16
|
Mostly Clear
|
48°F |
6 mph
WNW
|
|
Thursday
Apr 16
|
Sunny
|
77°F |
3 to 14 mph
SSW
|
|
Thursday Night
Apr 16
|
Mostly Clear
|
57°F |
12 to 16 mph
SSE
|
|
Friday
Apr 17
|
Slight Chance Showers And Thunderstorms
|
78°F |
17 to 24 mph
SSW
|
|
Friday Night
Apr 17
|
Showers And Thunderstorms Likely
|
32°F |
18 to 22 mph
NW
|
|
Saturday
Apr 18
|
Slight Chance Rain Showers then Sunny
|
50°F |
18 to 23 mph
NW
|
|
Saturday Night
Apr 18
|
Mostly Clear
|
30°F |
7 to 21 mph
WNW
|
|
Sunday
Apr 19
|
Sunny
|
58°F |
7 to 14 mph
NW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
34°F |
10 mph
ENE
|
|
Monday
Apr 20
|
Sunny
|
69°F |
9 to 21 mph
SSE
|
|
Monday Night
Apr 20
|
Mostly Clear
|
48°F |
13 to 18 mph
SSW
|
|
Tuesday
Apr 21
|
Sunny
|
74°F |
13 to 17 mph
SW
|
|
Tuesday Night
Apr 21
|
Mostly Clear
|
48°F |
10 to 15 mph
S
|
|
Wednesday
Apr 22
|
Sunny
|
72°F |
10 to 17 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Hamilton County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Hamilton County.
Largest mapped city population in this region: 7,671.
