Current Conditions

Ottawa, Illinois

76°F25°C
Partly Cloudy

Wind

ESE 3 mph5 km/h

Humidity

39%

Cloud Cover

71%

As of Thursday, July 23, 2026 at 12:42 PM CDT

Today's Outlook

Day

Partly cloudy and warm, with a high of 77°F25°C and morning low of 57°F14°C. Light wind from the ESE around 3 mph5 km/h.

Night

Mostly cloudy, with a low around 66°F19°C. Light wind from the SE around 3 mph5 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ThursdayJul 23Partly CloudyHigh 77°F25°CLow 57°F14°CPrecip 0 in0 mmCloud 53%Wind SE 3 mph5 km/hThursday: Partly cloudy and warm, with a high of 77°F25°C and morning low of 57°F14°C. Light wind from the ESE around 3 mph5 km/h. Thursday Night: Mostly cloudy, with a low around 66°F19°C. Light wind from the SE around 3 mph5 km/h.
FridayJul 24DrizzleHigh 79°F26°CLow 61°F16°CPrecip 0.01 in0.2 mm13%Cloud 61%Wind SSE 5 mph8 km/hFriday: Mostly cloudy and warm, with a high of 79°F26°C and morning low of 62°F17°C. Light wind from the SSE around 5 mph8 km/h. 13% chance of drizzle. Friday Night: Mostly cloudy, with a low around 61°F16°C. Light wind from the S around 5 mph7 km/h.
SaturdayJul 25Partly CloudyHigh 82°F28°CFeels 85°F29°CLow 65°F18°CPrecip 0.01 in0.3 mm9%Cloud 60%Wind SSW 5 mph9 km/hSaturday: Overcast and warm, with a high of 82°F28°C and morning low of 67°F19°C. Breezy from the SSW at 6 to 7 mph9 to 11 km/h. Humid. Saturday Night: Partly cloudy, with a low around 65°F18°C. Light wind from the SW around 5 mph8 km/h.
SundayJul 26HotHigh 91°F33°CFeels 99°F37°CLow 71°F22°CPrecip 0.01 in0.3 mm4%Cloud 64%Wind SW 5 mph8 km/hSunday: Mostly cloudy and hot, with a high of 91°F33°C and morning low of 72°F22°C — feels like 99°F37°C. Breezy from the SW at 5 to 7 mph8 to 11 km/h. Heat risk in the afternoon. Sunday Night: Mostly cloudy, with a low around 71°F22°C. Light wind from the SSW around 5 mph8 km/h.
MondayJul 27ShowersHigh 93°F34°CFeels 103°F40°CLow 76°F25°CPrecip 0.15 in3.7 mm21%Cloud 45%Wind SW 8 mph13 km/hMonday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 76°F25°C — feels like 104°F40°C. Breezy from the SW at 9 to 10 mph15 to 17 km/h. 21% chance of showers throughout the day. Heat risk in the afternoon. Monday Night: Partly cloudy, with a low around 77°F25°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h. 19% chance of showers throughout the night.
TuesdayJul 28DrizzleHigh 90°F32°CFeels 93°F34°CLow 76°F24°CPrecip 0.04 in1 mm10%Cloud 29%Wind N 7 mph11 km/hTuesday: Partly cloudy and hot, with a high of 90°F32°C and morning low of 76°F24°C. Breezy from the N at 7 to 8 mph12 to 12 km/h. Humid. Tuesday Night: Mostly clear, with a low around 76°F25°C. Breezy from the N at 7 mph11 km/h. 10% chance of drizzle throughout the night.
WednesdayJul 29ClearHigh 89°F32°CLow 68°F20°CPrecip 0.02 in0.6 mm4%Cloud 18%Wind ENE 6 mph9 km/hWednesday: Mostly clear and hot, with a high of 89°F32°C and morning low of 69°F20°C. Light wind from the NNE around 6 mph9 km/h. Wednesday Night: Mostly clear, with a low around 68°F20°C. Light wind from the ENE around 6 mph9 km/h.

15-Day Forecast

Day High (°F) Low (°F) Precip (mm) Cloud Cover (%) Condition Wind (mph)

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

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Coordinates: 41.3456°N, 88.8426°W·Elevation: 147m·Timezone: America/Chicago·Population: 18,342