Current Conditions

Ottawa, Illinois

63°F17°C
Clear

Wind

SSW 9 mph14 km/h

Humidity

79%

Cloud Cover

56%

As of Monday, October 12, 2026 at 3:14 AM CDT

Today's Outlook

Night

Mostly clear, with a low around 66°F19°C. Breezy from the S at 7 to 8 mph11 to 13 km/h.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
ClearHigh 70°F21°CLow 66°F19°CPrecip 0 in0 mm—Cloud 11%Wind S 7 mph11 km/hSunday Night: Mostly clear, with a low around 66°F19°C. Breezy from the S at 7 to 8 mph11 to 13 km/h.
ClearHigh 84°F29°CLow 62°F17°CPrecip 0 in0 mm—Cloud 40%Wind SSW 11 mph18 km/hMonday: Partly cloudy and warm, with a high of 84°F29°C and morning low of 62°F17°C. Breezy from the SSW at 11 to 13 mph18 to 20 km/h. Monday Night: Mostly cloudy, with a low around 62°F17°C. Breezy from the SSW at 11 to 13 mph17 to 21 km/h.
DrizzleHigh 78°F26°CLow 68°F20°CPrecip 0.03 in0.7 mm30%Cloud 21%Wind W 9 mph14 km/hTuesday: Mostly clear and warm, with a high of 78°F26°C and morning low of 70°F21°C. Breezy from the W at 9 to 10 mph15 to 16 km/h. Tuesday Night: Mostly clear, with a low around 68°F20°C. Breezy from the WSW at 9 to 13 mph14 to 21 km/h. 30% chance of drizzle in the evening.
Light RainHigh 66°F19°CLow 59°F15°CPrecip 0.22 in5.7 mm66%Cloud 94%Wind NE 8 mph13 km/hWednesday: Overcast and mild, with a high of 66°F19°C. Breezy from the NE at 8 to 9 mph13 to 15 km/h. 62% chance of light rain in the morning. Wednesday Night: Overcast, with a low around 59°F15°C. Breezy from the NE at 8 to 10 mph13 to 16 km/h. 66% chance of light rain overnight.
RainHigh 61°F16°CLow 56°F14°CPrecip 0.49 in12.5 mm80%Cloud 97%Wind ENE 9 mph14 km/hThursday: Overcast and mild, with a high of 61°F16°C. Breezy from the E at 8 to 9 mph13 to 14 km/h. 80% chance of rain in the morning. Thursday Night: Overcast, with a low around 56°F14°C. Breezy from the N at 10 to 12 mph16 to 20 km/h. 64% chance of light rain overnight.
DrizzleHigh 56°F13°CLow 44°F7°CFeels 39°F4°CPrecip 0.03 in0.8 mm19%Cloud 56%Wind NW 14 mph22 km/hFriday: Mostly cloudy and mild, with a high of 55°F13°C and morning low of 48°F9°C. Windy from the NW at 15 to 17 mph24 to 28 km/h. 12% chance of drizzle. Dry air. Friday Night: Partly cloudy, with a low around 44°F7°C. Breezy from the NW at 12 to 14 mph19 to 23 km/h. 19% chance of drizzle overnight.
ClearHigh 56°F13°CLow 35°F2°CFeels 29°F-2°CPrecip 0 in0 mm—Cloud 5%Wind WSW 7 mph12 km/hSaturday: Mostly clear and mild, with a high of 56°F13°C and morning low of 35°F2°C. Breezy from the WSW at 7 to 8 mph11 to 13 km/h. Dry air. Saturday Night: Mostly clear, with a low around 35°F2°C. Frost likely. Breezy from the W at 8 to 9 mph12 to 14 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
SundayOct 1170°F21°C66°F19°C0 in0 mm· —11%ClearS 7 mph11 km/h
MondayOct 1284°F29°C62°F17°C0 in0 mm· —40%ClearSSW 11 mph18 km/h
TuesdayOct 1378°F26°C68°F20°C0.03 in0.7 mm· 30%21%DrizzleW 9 mph14 km/h
WednesdayOct 1466°F19°C59°F15°C0.22 in5.7 mm· 66%94%Light RainNE 8 mph13 km/h
ThursdayOct 1561°F16°C56°F14°C0.49 in12.5 mm· 80%97%RainENE 9 mph14 km/h
FridayOct 1656°F13°C44°F7°C
Feels 39°F4°C
0.03 in0.8 mm· 19%56%DrizzleNW 14 mph22 km/h
SaturdayOct 1756°F13°C35°F2°C
Feels 29°F-2°C
0 in0 mm· —5%ClearWSW 7 mph12 km/h
SundayOct 1862°F16°C39°F4°C
Feels 33°F1°C
0.01 in0.2 mm· 2%25%ClearS 9 mph15 km/h
MondayOct 1965°F18°C49°F9°C
Feels 45°F7°C
0.02 in0.6 mm· 12%52%DrizzleSSW 8 mph14 km/h
TuesdayOct 2068°F20°C50°F10°C0.01 in0.3 mm· 4%33%ClearSSE 8 mph12 km/h
WednesdayOct 2169°F21°C55°F13°C0.11 in2.9 mm· 24%55%ShowersSSE 9 mph15 km/h
ThursdayOct 2267°F19°C58°F14°C0.24 in6.1 mm· 29%69%ShowersSSW 10 mph16 km/h
FridayOct 2363°F17°C54°F12°C0.2 in5 mm· 31%68%ShowersSSW 10 mph15 km/h
SaturdayOct 2462°F16°C50°F10°C
Feels 47°F8°C
0.13 in3.4 mm· 22%55%ShowersSW 9 mph15 km/h
SundayOct 2559°F15°C47°F8°C
Feels 43°F6°C
0.1 in2.5 mm· 14%57%DrizzleW 9 mph14 km/h

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