Dayton, IA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Dayton, IA in one place.
Sunny. High near 90, with temperatures falling to around 88 in the afternoon. Northwest wind around 7 mph.
Local Weather Overview
This forecast page for Dayton, IA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 17, 2026 4:07 PM CDT.
The active forecast window currently covers Jul 18 to Jul 23, 2026 for Dayton, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 18 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 4:07 PM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Dayton
Monday looks like the warmest upcoming period in Dayton at 98 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Tuesday at about 12 to 17 mph NNW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 4:07 PM CDT
- Coverage
- 6 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
Mostly clear, with a low around 64. East northeast wind 3 to 7 mph.
Sunny, with a high near 89. Southeast wind around 6 mph.
Partly cloudy, with a low around 73.
Sunny, with a high near 98.
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 70. Chance of precipitation is 20%.
Sunny, with a high near 85.
Mostly clear, with a low around 60.
Sunny, with a high near 81.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 60.
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 83.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 18
|
Sunny
|
90°F |
7 mph
NW
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
64°F |
3 to 7 mph
ENE
|
|
Sunday
Jul 19
|
Sunny
|
89°F |
6 mph
SE
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
73°F |
5 to 8 mph
SSE
|
|
Monday
Jul 20
|
Sunny
|
98°F |
10 mph
SSW
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms
|
70°F |
7 to 10 mph
WNW
|
|
Tuesday
Jul 21
|
Sunny
|
85°F |
12 to 17 mph
NNW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
60°F |
5 to 14 mph
N
|
|
Wednesday
Jul 22
|
Sunny
|
81°F |
5 mph
N
|
|
Wednesday Night
Jul 22
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
60°F |
5 mph
SE
|
|
Thursday
Jul 23
|
Slight Chance Showers And Thunderstorms
|
83°F |
2 to 6 mph
SSW
|
|
Thursday Night
Jul 23
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
62°F |
5 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Dayton.