Weather World
Hamilton, IA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Hamilton Weather Forecast
| REST OF TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 | |  |  | |  |  | |  |  | | |
| Patchy Fog | Patchy Fog | Partly Cloudy | Mostly Sunny | Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers |
| Lo: 55°FLo: 13°C | Hi: 61°FHi: 16°C | Lo: 50°FLo: 10°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 65°FHi: 18°C | Lo: 59°FLo: 15°C | Hi: 75°FHi: 24°C |
| POP: 20% | POP: 20% | POP: 40% | POP: 50% | POP: 70% | POP: 50% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 153 AM CDT Tue Sep 22 2026 
Hamilton Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Hamilton Weather Map
Hamilton Quick Facts
Hamilton Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 228 AM CDT Tue Sep 22 2026
Key Messages
- Drizzle and fog this morning will gradually diminish from northwest to southeast through the day today.
- Sunny and cool Wednesday for the first day of fall.
- Cooler temperatures in the 60s to finish the week with rain returning Thursday and lasting into the weekend.
Aviation
/06Z TAFS THROUGH 06Z WEDNESDAY/... Issued at 1159 PM CDT Mon Sep 21 2026
MVFR to LIFR ceilings and visibilities are impacting much of the area early this morning. Fog and drizzle are spanning much of western into cen...