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Pecatonica IL Weather - Clear - 87°F
Clear
87°F
Updated 7:20 pm
Feels Like 91°F
Humidity 78%
Wind S 3 mph
Barometer  29.91 in
Dew Point 80°F
Pecatonica IL Weather - Clear - 31°C
Clear
31°C
Updated 7:20 pm
Feels Like 33°C
Humidity 78%
Wind S 5 km/h
Barometer  101.3 kPa
Dew Point 26°C
Pecatonica, IL Weather and Current Conditionspecatonica il weather forecast

Pecatonica, IL Weather Forecast

Pecatonica Illinois WeatherPecatonica, Illinois Weather Weather Forecast
14 day API Pecatonica, IL weather forecast. Note. Our 7-day weather forecast for Pecatonica, Illinois is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Pecatonica, IL Weather Forecast Dated: 720 PM Thu Sep 03 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate. Isolated storms at times.

Thursday, September 3, 2026

Mid-Morning
Pecatonica Weather - 2026-09-03 - Morning - Drizzle
80°F 27°C
Drizzle
Mid-Afternoon
Pecatonica Weather - 2026-09-03 - Afternoon - Rain Showers
95°F 35°C
Rain Showers
Early-Evening
Pecatonica Weather - 2026-09-03 - Evening - Rain Showers
88°F 31°C
Rain Showers
Sizzling hot near 95°F 35°C with a heat index reaching 103°F 40°C, rounds of showers expected off and on all day, with lower humidity and steady pressure. Winds turning from the SW to the S at 6 mph 10 km/h.

Friday, September 4, 2026

Mid-Morning
Pecatonica Weather - 2026-09-04 - Morning - Scattered Showers
72°F 22°C
Scattered Showers
Mid-Afternoon
Pecatonica Weather - 2026-09-04 - Afternoon - Nearby Thunderstorms
88°F 31°C
Nearby Thunderstorms
Early-Evening
Pecatonica Weather - 2026-09-04 - Evening - Nearby Thunderstorms
83°F 28°C
Nearby Thunderstorms
Quite warm reaching 88°F 31°C, feeling like 92°F 33°C during peak afternoon, scattered downpours possible, with lower humidity and steady pressure. A stray shower or storm late in the day. Winds switching from the SE to the ESE at 4 mph 7 km/h.

Saturday, September 5, 2026

Mid-Morning
Pecatonica Weather - 2026-09-05 - Morning - Sunny
70°F 21°C
Sunny
Mid-Afternoon
Pecatonica Weather - 2026-09-05 - Afternoon - Sunny
84°F 29°C
Sunny
Early-Evening
Pecatonica Weather - 2026-09-05 - Evening - Sunny
77°F 25°C
Sunny
Very warm near 84°F 29°C, though humidity makes it feel like 88°F 31°C, sunny throughout the day, with lower humidity and steady pressure. Winds NE at 7 mph 11 km/h.

Sunday, September 6, 2026

Mid-Morning
Pecatonica Weather - 2026-09-06 - Morning - Sunny
69°F 21°C
Sunny
Mid-Afternoon
Pecatonica Weather - 2026-09-06 - Afternoon - Sunny
81°F 27°C
Sunny
Early-Evening
Pecatonica Weather - 2026-09-06 - Evening - Sunny
72°F 23°C
Sunny
Warm temperatures up to 81°F 27°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds out of the E at 8 mph 13 km/h.

Monday, September 7, 2026

Mid-Morning
Pecatonica Weather - 2026-09-07 - Morning - Partly Cloudy
67°F 19°C
Partly Cloudy
Mid-Afternoon
Pecatonica Weather - 2026-09-07 - Afternoon - Cloudy
78°F 25°C
Cloudy
Early-Evening
Pecatonica Weather - 2026-09-07 - Evening - Partly Cloudy
72°F 22°C
Partly Cloudy
Mild with a high of 78°F 25°C, partly cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds shifting from the SSE to the ESE at 10 mph 15 km/h.

Tuesday, September 8, 2026

Mid-Morning
Pecatonica Weather - 2026-09-08 - Morning - Overcast
67°F 20°C
Overcast
Mid-Afternoon
Pecatonica Weather - 2026-09-08 - Afternoon - Scattered Showers
80°F 27°C
Scattered Showers
Early-Evening
Pecatonica Weather - 2026-09-08 - Evening - Sunny
80°F 27°C
Sunny
Warm and summery near 80°F 27°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds S at 18 mph 29 km/h. Gusts up to 34 mph 55 km/h.

Wednesday, September 9, 2026

Mid-Morning
Pecatonica Weather - 2026-09-09 - Morning - Sunny
76°F 24°C
Sunny
Mid-Afternoon
Pecatonica Weather - 2026-09-09 - Afternoon - Overcast
83°F 28°C
Overcast
Early-Evening
Pecatonica Weather - 2026-09-09 - Evening - Sunny
76°F 25°C
Sunny
Balmy with temperatures reaching 83°F 28°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds switching from the NW to the WNW at 7 mph 11 km/h.

Thursday, September 10, 2026

Mid-Morning
Pecatonica Weather - 2026-09-10 - Morning - Scattered Showers
70°F 21°C
Scattered Showers
Mid-Afternoon
Pecatonica Weather - 2026-09-10 - Afternoon - Light Showers
80°F 27°C
Light Showers
Early-Evening
Pecatonica Weather - 2026-09-10 - Evening - Partly Cloudy
77°F 25°C
Partly Cloudy
Quite warm around 80°F 27°C, scattered downpours possible, with lower humidity and steady pressure.

Friday, September 11, 2026

Mid-Morning
Pecatonica Weather - 2026-09-11 - Morning - Overcast
62°F 17°C
Overcast
Mid-Afternoon
Pecatonica Weather - 2026-09-11 - Afternoon - Cloudy
76°F 25°C
Cloudy
Early-Evening
Pecatonica Weather - 2026-09-11 - Evening - Sunny
69°F 21°C
Sunny
Mild temperatures up to 76°F 25°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds blowing from the ESE at 16 mph 26 km/h. Gusts up to 26 mph 41 km/h.

Saturday, September 12, 2026

Mid-Morning
Pecatonica Weather - 2026-09-12 - Morning - Partly Cloudy
70°F 21°C
Partly Cloudy
Mid-Afternoon
Pecatonica Weather - 2026-09-12 - Afternoon - Sunny
90°F 32°C
Sunny
Early-Evening
Pecatonica Weather - 2026-09-12 - Evening - Sunny
88°F 31°C
Sunny
Sizzling hot near 90°F 32°C with a heat index reaching 93°F 34°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds S at 12 mph 19 km/h. Gusts up to 22 mph 36 km/h.

Sunday, September 13, 2026

Mid-Morning
Pecatonica Weather - 2026-09-13 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Pecatonica Weather - 2026-09-13 - Afternoon - Sunny
93°F 34°C
Sunny
Early-Evening
Pecatonica Weather - 2026-09-13 - Evening - Sunny
85°F 30°C
Sunny
Very hot with temperatures reaching 93°F 34°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds shifting from the WSW to the SSW at 15 mph 24 km/h. Gusts up to 28 mph 45 km/h.

Monday, September 14, 2026

Mid-Morning
Pecatonica Weather - 2026-09-14 - Morning - Scattered Showers
70°F 21°C
Scattered Showers
Mid-Afternoon
Pecatonica Weather - 2026-09-14 - Afternoon - Scattered Showers
72°F 22°C
Scattered Showers
Early-Evening
Pecatonica Weather - 2026-09-14 - Evening - Light Showers
69°F 21°C
Light Showers
Comfortable with temperatures reaching 72°F 22°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds turning from the SW to the W at 11 mph 19 km/h. Gusts up to 25 mph 40 km/h.

Tuesday, September 15, 2026

Mid-Morning
Pecatonica Weather - 2026-09-15 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
Pecatonica Weather - 2026-09-15 - Afternoon - Sunny
65°F 18°C
Sunny
Early-Evening
Pecatonica Weather - 2026-09-15 - Evening - Cloudy
59°F 15°C
Cloudy
Refreshing around 65°F 18°C, sunny in the morning, partly cloudy in the afternoon, and sunny this evening, with increasing humidity and barometric pressure rising. Winds switching from the WNW to the NW at 12 mph 18 km/h. Gusts up to 22 mph 35 km/h.

Wednesday, September 16, 2026

Mid-Morning
Pecatonica Weather - 2026-09-16 - Morning - Sunny
55°F 13°C
Sunny
Mid-Afternoon
Pecatonica Weather - 2026-09-16 - Afternoon - Sunny
65°F 18°C
Sunny
Early-Evening
Pecatonica Weather - 2026-09-16 - Evening - Overcast
59°F 16°C
Overcast
Mildly cool near 65°F 18°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds moving from the NNW to the N at 8 mph 12 km/h.

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Weather by the Numbers

Thu, 3rd
Pecatonica IL Weather - Thursday, Sep 3, 2026 - Moderate Rain At Times
Hi: 95°F 35°C
Lo: 74°F 23°C
Sunrise 06:25 AM
Sunset 07:28 PM
Wind SW 4 mph6 km/h
Dew Point 74°F24°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 38% *
Humidity 58%
Fri, 4th
Pecatonica IL Weather - Friday, Sep 4, 2026 - Patchy Rain Nearby
Hi: 88°F 31°C
Lo: 72°F 22°C
Sunrise 06:26 AM
Sunset 07:27 PM
Wind SW 9 mph15 km/h
Dew Point 66°F19°C
uv Index 4
Barometric Pressure 29.88 in1012 mb
POP 14% *
Humidity 55%
Sat, 5th
Pecatonica IL Weather - Saturday, Sep 5, 2026 - Sunny
Hi: 85°F 29°C
Lo: 67°F 20°C
Sunrise 06:27 AM
Sunset 07:25 PM
Wind ENE 5 mph8 km/h
Dew Point 67°F20°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 4% *
Humidity 65%
Sun, 6th
Pecatonica IL Weather - Sunday, Sep 6, 2026 - Sunny
Hi: 81°F 27°C
Lo: 64°F 18°C
Sunrise 06:28 AM
Sunset 07:23 PM
Wind ESE 8 mph13 km/h
Dew Point 59°F15°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 3% *
Humidity 53%
Mon, 7th
Pecatonica IL Weather - Monday, Sep 7, 2026 - Overcast
Hi: 78°F 25°C
Lo: 65°F 18°C
Sunrise 06:29 AM
Sunset 07:21 PM
Wind SE 9 mph14 km/h
Dew Point 56°F13°C
uv Index 5
Barometric Pressure 30.15 in1021 mb
POP 12% *
Humidity 51%
Tue, 8th
Pecatonica IL Weather - Tuesday, Sep 8, 2026 - Patchy Rain Nearby
Hi: 81°F 27°C
Lo: 64°F 18°C
Sunrise 06:30 AM
Sunset 07:20 PM
Wind S 15 mph24 km/h
Dew Point 58°F14°C
uv Index 5
Barometric Pressure 30 in1016 mb
POP 10% *
Humidity 55%
Wed, 9th
Pecatonica IL Weather - Wednesday, Sep 9, 2026 - Sunny
Hi: 84°F 29°C
Lo: 70°F 21°C
Sunrise 06:31 AM
Sunset 07:18 PM
Wind NW 15 mph25 km/h
Dew Point 60°F16°C
uv Index 7
Barometric Pressure 29.97 in1015 mb
POP 7% *
Humidity 50%
Thu, 10th
Pecatonica IL Weather - Thursday, Sep 10, 2026 - Patchy Rain Nearby
Hi: 80°F 27°C
Lo: 67°F 19°C
Sunrise 06:32 AM
Sunset 07:16 PM
Wind W 5 mph9 km/h
Dew Point 60°F15°C
uv Index 5
Barometric Pressure 30 in1016 mb
POP 17% *
Humidity 57%
Fri, 11th
Pecatonica IL Weather - Friday, Sep 11, 2026 - Cloudy
Hi: 78°F 25°C
Lo: 61°F 16°C
Sunrise 06:33 AM
Sunset 07:14 PM
Wind ESE 17 mph28 km/h
Dew Point 54°F12°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 9% *
Humidity 58%
Sat, 12th
Pecatonica IL Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 92°F 33°C
Lo: 64°F 18°C
Sunrise 06:34 AM
Sunset 07:13 PM
Wind SSE 12 mph19 km/h
Dew Point 61°F16°C
uv Index 7
Barometric Pressure 29.85 in1011 mb
POP 2% *
Humidity 50%
Sun, 13th
Pecatonica IL Weather - Sunday, Sep 13, 2026 - Partly Cloudy
Hi: 94°F 34°C
Lo: 75°F 24°C
Sunrise 06:35 AM
Sunset 07:11 PM
Wind SW 15 mph24 km/h
Dew Point 61°F16°C
uv Index 8
Barometric Pressure 29.85 in1011 mb
POP 2% *
Humidity 39%
Mon, 14th
Pecatonica IL Weather - Monday, Sep 14, 2026 - Patchy Rain Nearby
Hi: 76°F 25°C
Lo: 66°F 19°C
Sunrise 06:36 AM
Sunset 07:09 PM
Wind SW 15 mph24 km/h
Dew Point 68°F20°C
uv Index 5
Barometric Pressure 29.85 in1011 mb
POP 24% *
Humidity 81%
Tue, 15th
Pecatonica IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 66°F 19°C
Lo: 54°F 12°C
Sunrise 06:37 AM
Sunset 07:07 PM
Wind WNW 21 mph33 km/h
Dew Point 43°F6°C
uv Index 5
Barometric Pressure 29.77 in1008 mb
POP 2% *
Humidity 45%
Wed, 16th
Pecatonica IL Weather - Wednesday, Sep 16, 2026 - Sunny
Hi: 65°F 18°C
Lo: 49°F 10°C
Sunrise 06:39 AM
Sunset 07:05 PM
Wind NNW 9 mph14 km/h
Dew Point 44°F6°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 2% *
Humidity 51%
* POP = Probability of Precipitation. Data for 12:00 PM.