10-day forecast for Ottawa, IA: 41° to 76°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
76°
Best day: Sunday, October 25
61° · 0.51 in
Worst day: Saturday, October 31
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 2576° / 54°0
Morning54°feels 53°
Afternoon75°feels 75°
Evening65°feels 64°
Overnight58°feels 57°
76 °
Ottawa, Sunday, 25 October
Overcast. High 76°, low 54°.
Pressure30.33 inHg
Wind3.8 mph SW
Humidity56%
Visibility6.2 mi
Dew point55°
Mon, 2675° / 55°0
Morning55°feels 54°
Afternoon74°feels 73°
Evening63°feels 62°
Overnight60°feels 60°
75 °
Ottawa, Monday, 26 October
Partly cloudy. High 75°, low 55°.
Pressure30.27 inHg
Wind4.6 mph SE
Humidity58%
Visibility6.2 mi
Dew point55°
Tue, 2769° / 56°0.04
Morning58°feels 57°
Afternoon68°feels 67°
Evening61°feels 60°
Overnight58°feels 57°
69 °
Ottawa, Tuesday, 27 October
Light rain. High 69°, low 56°.
Pressure30.15 inHg
Wind9 mph S
Humidity61%
Visibility6.2 mi
Dew point52°
Wed, 2873° / 58°0.06
Morning64°feels 63°
Afternoon70°feels 69°
Evening65°feels 65°
Overnight63°feels 62°
73 °
Ottawa, Wednesday, 28 October
Light rain. High 73°, low 58°.
Pressure30.12 inHg
Wind12.1 mph S
Humidity59%
Visibility—
Dew point54°
Thu, 2975° / 60°0
Morning64°feels 63°
Afternoon73°feels 72°
Evening67°feels 67°
Overnight65°feels 64°
75 °
Ottawa, Thursday, 29 October
Partly cloudy. High 75°, low 60°.
Pressure30.09 inHg
Wind13.1 mph S
Humidity55%
Visibility—
Dew point55°
Fri, 3069° / 61°0.47
Morning63°feels 64°
Afternoon67°feels 67°
Evening64°feels 64°
Overnight62°feels 62°
69 °
Ottawa, Friday, 30 October
Rain. High 69°, low 61°.
Pressure30.06 inHg
Wind14.3 mph SW
Humidity78%
Visibility—
Dew point60°
Sat, 3161° / 56°0.51
Morning56°feels 56°
Afternoon56°feels 56°
Evening58°feels 58°
Overnight59°feels 59°
61 °
Ottawa, Saturday, 31 October
Rain. High 61°, low 56°.
Pressure29.91 inHg
Wind19.7 mph S
Humidity94%
Visibility—
Dew point55°
Sun, 0162° / 45°0.04
Morning56°feels 54°
Afternoon55°feels 53°
Evening47°feels 44°
Overnight47°feels 43°
62 °
Ottawa, Sunday, 1 November
Light rain. High 62°, low 45°.
Pressure30.06 inHg
Wind16.8 mph NW
Humidity46%
Visibility—
Dew point36°
Mon, 0258° / 41°0
Morning46°feels 41°
Afternoon55°feels 53°
Evening48°feels 44°
Overnight45°feels 41°
58 °
Ottawa, Monday, 2 November
Clear. High 58°, low 41°.
Pressure30.21 inHg
Wind11.6 mph NW
Humidity43%
Visibility—
Dew point32°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Ottawa, IA around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.