Ottawa, IA Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Ottawa, IA in one place.
Showers and thunderstorms before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm. Mostly cloudy. High near 80, with temperatures falling to around 75 in the afternoon. South southwest wind 6 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Local Weather Overview
This forecast page for Ottawa, 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: Jun 11, 2026 12:11 AM CDT.
The active forecast window currently covers Jun 11 to Jun 17, 2026 for Ottawa, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 11 to Jun 17, 2026
- Latest sync
- Jun 11, 2026 12:11 AM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Ottawa
Wednesday looks like the warmest upcoming period in Ottawa at 84 degrees F.
Thursday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Thursday at about 6 to 21 mph SSW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 11, 2026 12:11 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
Clear. Low around 56, with temperatures rising to around 58 overnight. West wind 7 to 17 mph, with gusts as high as 26 mph. New rainfall amounts between a quarter and half of an inch possible.
Sunny, with a high near 81. West southwest wind around 10 mph.
Mostly clear, with a low around 62. South southwest wind 7 to 12 mph, with gusts as high as 18 mph.
A chance of showers and thunderstorms between 7am and 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and thunderstorms likely. Mostly sunny, with a high near 82. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 74. Chance of precipitation is 20%.
Partly cloudy, with a low around 57.
Mostly sunny, with a high near 76.
Partly cloudy, with a low around 57.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 79.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 60.
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 84.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jun 11
|
Showers And Thunderstorms
|
80°F |
6 to 21 mph
SSW
|
|
Thursday Night
Jun 11
|
Clear
|
56°F |
7 to 17 mph
W
|
|
Friday
Jun 12
|
Sunny
|
81°F |
10 mph
WSW
|
|
Friday Night
Jun 12
|
Mostly Clear
|
62°F |
7 to 12 mph
SSW
|
|
Saturday
Jun 13
|
Chance Showers And Thunderstorms
|
82°F |
12 mph
SW
|
|
Saturday Night
Jun 13
|
Showers And Thunderstorms Likely
|
57°F |
7 to 10 mph
NNW
|
|
Sunday
Jun 14
|
Slight Chance Rain Showers then Mostly Sunny
|
74°F |
9 to 13 mph
N
|
|
Sunday Night
Jun 14
|
Partly Cloudy
|
57°F |
3 to 9 mph
NW
|
|
Monday
Jun 15
|
Mostly Sunny
|
76°F |
5 to 9 mph
NW
|
|
Monday Night
Jun 15
|
Partly Cloudy
|
57°F |
8 mph
W
|
|
Tuesday
Jun 16
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
79°F |
6 to 12 mph
W
|
|
Tuesday Night
Jun 16
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
60°F |
6 to 9 mph
WSW
|
|
Wednesday
Jun 17
|
Mostly Sunny then Slight Chance Rain Showers
|
84°F |
8 to 14 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Ottawa.