Current Conditions

Ottawa, Illinois

81°F27°C

Hot

Feels like85°F30°C

Wind

SSW 7 mph12 km/h

Humidity

73%

Cloud Cover

As of Tuesday, September 1, 2026 at 10:14 PM CDT

Today's Outlook

Night

Mostly clear, with a low around 77°F25°C. Breezy from the SSW at 8 mph13 km/h.

7-Day Forecast

Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
Hot	High 97°F36°CFeels 105°F40°C	Low 76°F24°C	Precip 0 in0.1 mm5%	Cloud 21%	Wind SW 8 mph13 km/h	Wednesday: Partly cloudy and hot, with a high of 97°F36°C and morning low of 76°F24°C — feels like 104°F40°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. Heat risk in the afternoon. Wednesday Night: Mostly clear, with a low around 77°F25°C. Breezy from the SSW at 8 mph13 km/h.
Hot	High 93°F34°CFeels 101°F38°C	Low 76°F24°C	Precip 0 in0.1 mm4%	Cloud 24%	Wind SSW 6 mph10 km/h	Thursday: Partly cloudy and hot, with a high of 93°F34°C and morning low of 76°F24°C — feels like 100°F38°C. Breezy from the SW at 6 to 7 mph9 to 11 km/h. Heat risk in the afternoon. Thursday Night: Mostly clear, with a low around 78°F26°C. Breezy from the SSW at 7 to 8 mph11 to 14 km/h.
Drizzle	High 94°F34°CFeels 101°F39°C	Low 75°F24°C	Precip 0.02 in0.4 mm13%	Cloud 32%	Wind SSE 5 mph9 km/h	Friday: Partly cloudy and hot, with a high of 94°F34°C and morning low of 75°F24°C — feels like 102°F39°C. Light wind from the S around 6 mph9 km/h. 13% chance of drizzle in the afternoon. Heat risk in the afternoon. Friday Night: Partly cloudy, with a low around 76°F24°C. Light wind from the SSE around 5 mph8 km/h.
Showers	High 90°F32°CFeels 98°F37°C	Low 74°F23°C	Precip 0.11 in2.8 mm28%	Cloud 52%	Wind E 6 mph9 km/h	Saturday: Mostly cloudy and hot, with a high of 90°F32°C and morning low of 74°F23°C — feels like 99°F37°C. Light wind from the E around 6 mph9 km/h. 27% chance of showers throughout the day. Heat risk in the afternoon. Saturday Night: Mostly cloudy, with a low around 75°F24°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. 28% chance of showers throughout the night.
Drizzle	High 85°F29°CFeels 88°F31°C	Low 71°F21°C	Precip 0.09 in2.2 mm13%	Cloud 58%	Wind E 6 mph9 km/h	Sunday: Mostly cloudy and warm, with a high of 85°F29°C and morning low of 71°F21°C. Light wind from the E around 6 mph10 km/h. 13% chance of drizzle throughout the day. Humid. Sunday Night: Mostly cloudy, with a low around 71°F22°C. Light wind from the E around 6 mph9 km/h. 11% chance of drizzle throughout the night.
Drizzle	High 84°F29°C	Low 67°F19°C	Precip 0.04 in1 mm11%	Cloud 67%	Wind ESE 6 mph10 km/h	Monday: Mostly cloudy and warm, with a high of 84°F29°C and morning low of 67°F19°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. 11% chance of drizzle throughout the day. Monday Night: Mostly cloudy, with a low around 68°F20°C. Breezy from the ESE at 6 to 7 mph10 to 12 km/h.
Drizzle	High 88°F31°CFeels 92°F33°C	Low 69°F20°C	Precip 0.07 in1.9 mm14%	Cloud 60%	Wind SSE 8 mph13 km/h	Tuesday: Mostly cloudy and hot, with a high of 88°F31°C and morning low of 69°F20°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. 14% chance of drizzle throughout the day. Humid. Tuesday Night: Mostly cloudy, with a low around 70°F21°C. Breezy from the SSE at 7 to 8 mph12 to 13 km/h. 10% chance of drizzle before dawn.

15-Day Forecast

	Day	High	Low	Precip	Cloud Cover	Condition	Wind
	WednesdaySep 2	97°F36°C Feels 105°F40°C	76°F24°C	0 in0.1 mm· 5%	21%	Hot	SW 8 mph13 km/h
DayPartly cloudy and hot, with a high of 97°F36°C and morning low of 76°F24°C — feels like 104°F40°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 77°F25°C. Breezy from the SSW at 8 mph13 km/h.
	ThursdaySep 3	93°F34°C Feels 101°F38°C	76°F24°C	0 in0.1 mm· 4%	24%	Hot	SSW 6 mph10 km/h
DayPartly cloudy and hot, with a high of 93°F34°C and morning low of 76°F24°C — feels like 100°F38°C. Breezy from the SW at 6 to 7 mph9 to 11 km/h. Heat risk in the afternoon. NightMostly clear, with a low around 78°F26°C. Breezy from the SSW at 7 to 8 mph11 to 14 km/h.
	FridaySep 4	94°F34°C Feels 101°F39°C	75°F24°C	0.02 in0.4 mm· 13%	32%	Drizzle	SSE 5 mph9 km/h
DayPartly cloudy and hot, with a high of 94°F34°C and morning low of 75°F24°C — feels like 102°F39°C. Light wind from the S around 6 mph9 km/h. 13% chance of drizzle in the afternoon. Heat risk in the afternoon. NightPartly cloudy, with a low around 76°F24°C. Light wind from the SSE around 5 mph8 km/h.
	SaturdaySep 5	90°F32°C Feels 98°F37°C	74°F23°C	0.11 in2.8 mm· 28%	52%	Showers	E 6 mph9 km/h
DayMostly cloudy and hot, with a high of 90°F32°C and morning low of 74°F23°C — feels like 99°F37°C. Light wind from the E around 6 mph9 km/h. 27% chance of showers throughout the day. Heat risk in the afternoon. NightMostly cloudy, with a low around 75°F24°C. Breezy from the E at 6 to 7 mph10 to 11 km/h. 28% chance of showers throughout the night.
	SundaySep 6	85°F29°C Feels 88°F31°C	71°F21°C	0.09 in2.2 mm· 13%	58%	Drizzle	E 6 mph9 km/h
DayMostly cloudy and warm, with a high of 85°F29°C and morning low of 71°F21°C. Light wind from the E around 6 mph10 km/h. 13% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Light wind from the E around 6 mph9 km/h. 11% chance of drizzle throughout the night.
	MondaySep 7	84°F29°C	67°F19°C	0.04 in1 mm· 11%	67%	Drizzle	ESE 6 mph10 km/h
DayMostly cloudy and warm, with a high of 84°F29°C and morning low of 67°F19°C. Breezy from the SE at 6 to 7 mph10 to 11 km/h. 11% chance of drizzle throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the ESE at 6 to 7 mph10 to 12 km/h.
	TuesdaySep 8	88°F31°C Feels 92°F33°C	69°F20°C	0.07 in1.9 mm· 14%	60%	Drizzle	SSE 8 mph13 km/h
DayMostly cloudy and hot, with a high of 88°F31°C and morning low of 69°F20°C. Breezy from the SSE at 8 to 9 mph13 to 15 km/h. 14% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 70°F21°C. Breezy from the SSE at 7 to 8 mph12 to 13 km/h. 10% chance of drizzle before dawn.
	WednesdaySep 9	91°F33°C Feels 98°F37°C	75°F24°C	0.05 in1.2 mm· 10%	43%	Drizzle	SSW 8 mph13 km/h
DayPartly cloudy and hot, with a high of 91°F33°C and morning low of 75°F24°C — feels like 99°F37°C. Breezy from the SW at 9 to 10 mph14 to 16 km/h. Heat risk in the afternoon. NightPartly cloudy, with a low around 76°F24°C. Breezy from the SSW at 8 to 9 mph13 to 14 km/h. 10% chance of drizzle throughout the night.
	ThursdaySep 10	87°F31°C Feels 90°F32°C	73°F23°C	0.17 in4.2 mm· 22%	52%	Showers	SW 8 mph13 km/h
DayMostly cloudy and hot, with a high of 87°F31°C and morning low of 73°F23°C. Breezy from the WSW at 9 mph14 km/h. 17% chance of drizzle throughout the day. Humid. NightMostly cloudy, with a low around 75°F24°C. Breezy from the SSW at 8 mph12 km/h. 22% chance of showers throughout the night.
	FridaySep 11	83°F28°C	69°F21°C	0.23 in5.8 mm· 30%	58%	Showers	SW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 83°F28°C and morning low of 69°F21°C. Breezy from the WSW at 8 to 9 mph13 to 15 km/h. 30% chance of showers throughout the day. Humid. NightMostly cloudy, with a low around 71°F22°C. Breezy from the SSW at 8 mph12 km/h. 29% chance of showers throughout the night.
	SaturdaySep 12	80°F27°C	66°F19°C	0.16 in4 mm· 16%	56%	Showers	SW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 66°F19°C. Breezy from the WSW at 9 to 10 mph14 to 16 km/h. 15% chance of showers throughout the day. NightMostly cloudy, with a low around 68°F20°C. Breezy from the SSW at 8 mph12 km/h. 16% chance of showers throughout the night.
	SundaySep 13	80°F27°C	64°F18°C	0.15 in3.7 mm· 18%	59%	Showers	S 8 mph13 km/h
DayMostly cloudy and warm, with a high of 80°F27°C and morning low of 64°F18°C. Breezy from the S at 9 mph14 km/h. 18% chance of showers throughout the day. NightMostly cloudy, with a low around 65°F19°C. Breezy from the SSE at 8 mph12 km/h. 18% chance of showers throughout the night.
	MondaySep 14	79°F26°C	64°F18°C	0.1 in2.6 mm· 17%	59%	Showers	SSW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 64°F18°C. Breezy from the SW at 9 to 10 mph15 to 16 km/h. 16% chance of drizzle throughout the day. NightMostly cloudy, with a low around 66°F19°C. Breezy from the S at 8 mph12 km/h. 17% chance of showers throughout the night.
	TuesdaySep 15	79°F26°C	63°F17°C	0.15 in3.7 mm· 21%	52%	Showers	SW 8 mph12 km/h
DayMostly cloudy and warm, with a high of 79°F26°C and morning low of 63°F17°C. Breezy from the SW at 8 to 9 mph13 to 15 km/h. 21% chance of drizzle throughout the day. NightPartly cloudy, with a low around 64°F18°C. Breezy from the SSW at 7 mph11 km/h. 20% chance of showers throughout the night.
	WednesdaySep 16	78°F25°C	61°F16°C	0.11 in2.7 mm· 15%	49%	Showers	WSW 8 mph13 km/h
DayMostly cloudy and warm, with a high of 78°F25°C and morning low of 61°F16°C. Breezy from the WSW at 8 to 9 mph14 to 15 km/h. 14% chance of showers throughout the day. NightPartly cloudy, with a low around 63°F17°C. Breezy from the WSW at 7 mph11 km/h. 15% chance of showers throughout the night.

Nearby Cities

Yorkville29 mi47 km Oswego34 mi55 km Shorewood35 mi57 km Montgomery37 mi60 km Plainfield38 mi62 km Aurora39 mi63 km

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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Pattern	Example	Description
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/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=11.5	Find 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