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Nelson IL Weather - Clear - 83°F
Clear
83°F
Updated 9:20 am
Feels Like 86°F
Humidity 72%
Wind SW 9 mph
Barometer  29.95 in
Dew Point 73°F
Nelson IL Weather - Clear - 28°C
Clear
28°C
Updated 9:20 am
Feels Like 30°C
Humidity 72%
Wind SW 14 km/h
Barometer  101.4 kPa
Dew Point 23°C
Nelson, IL Weather and Current Conditionsnelson il weather forecast

Nelson, IL Weather Forecast

Nelson Illinois WeatherNelson, Illinois Weather Weather Forecast
14 day API weather forecast for Nelson, Illinois. Note: The 7-day weather forecast for Nelson, IL is the most reliable and accurate weather forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days ahead.
Nelson, IL Weather Forecast Dated: 920 AM Fri Sep 04 2026
Expect a very warm period with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.

Friday, September 4, 2026

Mid-Morning
Nelson Weather - 2026-09-04 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Nelson Weather - 2026-09-04 - Afternoon - Sunny
93°F 34°C
Sunny
Early-Evening
Nelson Weather - 2026-09-04 - Evening - Nearby Thunderstorms
88°F 31°C
Nearby Thunderstorms
Sizzling hot near 93°F 34°C with a heat index reaching 102°F 39°C, periods of heavy thunderstorms, with steady humidity and steady pressure. Winds turning from the ENE to the S at 8 mph 13 km/h.

Saturday, September 5, 2026

Mid-Morning
Nelson Weather - 2026-09-05 - Morning - Scattered Showers
79°F 26°C
Scattered Showers
Mid-Afternoon
Nelson Weather - 2026-09-05 - Afternoon - Sunny
87°F 31°C
Sunny
Early-Evening
Nelson Weather - 2026-09-05 - Evening - Sunny
79°F 26°C
Sunny
Quite warm reaching 87°F 31°C, feeling like 94°F 34°C during peak afternoon, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the WNW to the ENE at 11 mph 16 km/h.

Sunday, September 6, 2026

Mid-Morning
Nelson Weather - 2026-09-06 - Morning - Sunny
70°F 21°C
Sunny
Mid-Afternoon
Nelson Weather - 2026-09-06 - Afternoon - Overcast
78°F 26°C
Overcast
Early-Evening
Nelson Weather - 2026-09-06 - Evening - Overcast
72°F 22°C
Overcast
Enjoyable around 78°F 26°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds moving from the ESE to the ENE at 11 mph 17 km/h. Gusts up to 21 mph 34 km/h.

Monday, September 7, 2026

Mid-Morning
Nelson Weather - 2026-09-07 - Morning - Overcast
67°F 19°C
Overcast
Mid-Afternoon
Nelson Weather - 2026-09-07 - Afternoon - Overcast
69°F 21°C
Overcast
Early-Evening
Nelson Weather - 2026-09-07 - Evening - Overcast
69°F 21°C
Overcast
Mild temperatures up to 69°F 21°C, overcast throughout the day, with steady humidity and steady pressure. Winds swinging from the SE to the E at 9 mph 13 km/h.

Tuesday, September 8, 2026

Mid-Morning
Nelson Weather - 2026-09-08 - Morning - Partly Cloudy
68°F 20°C
Partly Cloudy
Mid-Afternoon
Nelson Weather - 2026-09-08 - Afternoon - Partly Cloudy
82°F 28°C
Partly Cloudy
Early-Evening
Nelson Weather - 2026-09-08 - Evening - Sunny
83°F 29°C
Sunny
Very warm with a high of 82°F 28°C, partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling. Winds blowing from the S at 13 mph 21 km/h. Gusts up to 31 mph 51 km/h.

Wednesday, September 9, 2026

Mid-Morning
Nelson Weather - 2026-09-09 - Morning - Overcast
83°F 29°C
Overcast
Mid-Afternoon
Nelson Weather - 2026-09-09 - Afternoon - Sunny
94°F 35°C
Sunny
Early-Evening
Nelson Weather - 2026-09-09 - Evening - Sunny
87°F 31°C
Sunny
Very hot with a high of 94°F 35°C, feeling closer to 100°F 38°C in the humidity, cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with increasing humidity and steady pressure.

Thursday, September 10, 2026

Mid-Morning
Nelson Weather - 2026-09-10 - Morning - Sunny
79°F 26°C
Sunny
Mid-Afternoon
Nelson Weather - 2026-09-10 - Afternoon - Sunny
88°F 31°C
Sunny
Early-Evening
Nelson Weather - 2026-09-10 - Evening - Sunny
80°F 27°C
Sunny
Warm and summery around 88°F 31°C (feels like 94°F 35°C), partly cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds ESE at 12 mph 19 km/h. Gusts up to 24 mph 38 km/h.

Friday, September 11, 2026

Mid-Morning
Nelson Weather - 2026-09-11 - Morning - Sunny
78°F 25°C
Sunny
Mid-Afternoon
Nelson Weather - 2026-09-11 - Afternoon - Scattered Showers
92°F 33°C
Scattered Showers
Early-Evening
Nelson Weather - 2026-09-11 - Evening - Sunny
87°F 30°C
Sunny
Hot and sweltering around 92°F 33°C (heat index 98°F 36°C), scattered downpours possible, with lower humidity and barometric pressure falling. Winds switching from the SSE to the SE at 8 mph 12 km/h.

Saturday, September 12, 2026

Mid-Morning
Nelson Weather - 2026-09-12 - Morning - Sunny
82°F 28°C
Sunny
Mid-Afternoon
Nelson Weather - 2026-09-12 - Afternoon - Sunny
89°F 31°C
Sunny
Early-Evening
Nelson Weather - 2026-09-12 - Evening - Scattered Showers
84°F 29°C
Scattered Showers
Very warm near 89°F 31°C, though humidity makes it feel like 92°F 33°C, locally heavy downpours at times, with steady humidity and steady pressure. Winds moving from the SSW to the S at 6 mph 10 km/h.

Sunday, September 13, 2026

Mid-Morning
Nelson Weather - 2026-09-13 - Morning - Scattered Showers
78°F 26°C
Scattered Showers
Mid-Afternoon
Nelson Weather - 2026-09-13 - Afternoon - Sunny
89°F 32°C
Sunny
Early-Evening
Nelson Weather - 2026-09-13 - Evening - Scattered Showers
72°F 23°C
Scattered Showers
Warm and summery around 89°F 32°C (feels like 92°F 34°C), periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds swinging from the S to the SW at 17 mph 27 km/h. Gusts up to 38 mph 61 km/h.

Monday, September 14, 2026

Mid-Morning
Nelson Weather - 2026-09-14 - Morning - Sunny
62°F 17°C
Sunny
Mid-Afternoon
Nelson Weather - 2026-09-14 - Afternoon - Sunny
75°F 24°C
Sunny
Early-Evening
Nelson Weather - 2026-09-14 - Evening - Sunny
69°F 21°C
Sunny
Pleasant near 75°F 24°C, sunny throughout the day, with lower humidity and steady pressure.

Tuesday, September 15, 2026

Mid-Morning
Nelson Weather - 2026-09-15 - Morning - Sunny
69°F 21°C
Sunny
Mid-Afternoon
Nelson Weather - 2026-09-15 - Afternoon - Cloudy
86°F 30°C
Cloudy
Early-Evening
Nelson Weather - 2026-09-15 - Evening - Scattered Showers
84°F 29°C
Scattered Showers
Very warm near 86°F 30°C, though humidity makes it feel like 90°F 32°C, locally heavy downpours at times, with lower humidity and barometric pressure falling. Winds out of the SSW at 18 mph 29 km/h. Gusts up to 33 mph 52 km/h.

Wednesday, September 16, 2026

Mid-Morning
Nelson Weather - 2026-09-16 - Morning - Overcast
79°F 26°C
Overcast
Mid-Afternoon
Nelson Weather - 2026-09-16 - Afternoon - Scattered Showers
93°F 34°C
Scattered Showers
Early-Evening
Nelson Weather - 2026-09-16 - Evening - Nearby Thunderstorms
86°F 30°C
Nearby Thunderstorms
Sizzling hot near 93°F 34°C with a heat index reaching 97°F 36°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds blowing from the SSW at 15 mph 24 km/h.

Thursday, September 17, 2026

Mid-Morning
Nelson Weather - 2026-09-17 - Morning - Overcast
74°F 23°C
Overcast
Mid-Afternoon
Nelson Weather - 2026-09-17 - Afternoon - Scattered Showers
72°F 22°C
Scattered Showers
Early-Evening
Nelson Weather - 2026-09-17 - Evening - Scattered Showers
67°F 19°C
Scattered Showers
Mild temperatures up to 72°F 22°C, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the SW to the NNW at 8 mph 13 km/h.

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Weather by the Numbers

Fri, 4th
Nelson IL Weather - Friday, Sep 4, 2026 - Sunny
Hi: 95°F 35°C
Lo: 73°F 23°C
Sunrise 06:28 AM
Sunset 07:27 PM
Wind SW 10 mph16 km/h
Dew Point 69°F21°C
uv Index 7
Barometric Pressure 29.88 in1012 mb
POP 3% *
Humidity 57%
Sat, 5th
Nelson IL Weather - Saturday, Sep 5, 2026 - Sunny
Hi: 87°F 31°C
Lo: 70°F 21°C
Sunrise 06:29 AM
Sunset 07:25 PM
Wind NNE 6 mph9 km/h
Dew Point 70°F21°C
uv Index 7
Barometric Pressure 29.88 in1012 mb
POP 3% *
Humidity 59%
Sun, 6th
Nelson IL Weather - Sunday, Sep 6, 2026 - Partly Cloudy
Hi: 78°F 26°C
Lo: 66°F 19°C
Sunrise 06:30 AM
Sunset 07:24 PM
Wind ESE 11 mph18 km/h
Dew Point 60°F16°C
uv Index 7
Barometric Pressure 30.06 in1018 mb
POP 7% *
Humidity 59%
Mon, 7th
Nelson IL Weather - Monday, Sep 7, 2026 - Overcast
Hi: 73°F 23°C
Lo: 63°F 17°C
Sunrise 06:31 AM
Sunset 07:22 PM
Wind ESE 9 mph15 km/h
Dew Point 59°F15°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 15% *
Humidity 61%
Tue, 8th
Nelson IL Weather - Tuesday, Sep 8, 2026 - Overcast
Hi: 88°F 31°C
Lo: 63°F 17°C
Sunrise 06:32 AM
Sunset 07:20 PM
Wind SSE 12 mph19 km/h
Dew Point 64°F18°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 15% *
Humidity 61%
Wed, 9th
Nelson IL Weather - Wednesday, Sep 9, 2026 - Patchy Rain Nearby
Hi: 96°F 36°C
Lo: 83°F 28°C
Sunrise 06:33 AM
Sunset 07:18 PM
Wind W 5 mph9 km/h
Dew Point 63°F17°C
uv Index 7
Barometric Pressure 29.94 in1014 mb
POP 2% *
Humidity 44%
Thu, 10th
Nelson IL Weather - Thursday, Sep 10, 2026 - Partly Cloudy
Hi: 88°F 31°C
Lo: 71°F 22°C
Sunrise 06:34 AM
Sunset 07:17 PM
Wind ESE 13 mph22 km/h
Dew Point 70°F21°C
uv Index 7
Barometric Pressure 30 in1016 mb
POP 5% *
Humidity 63%
Fri, 11th
Nelson IL Weather - Friday, Sep 11, 2026 - Patchy Rain Nearby
Hi: 93°F 34°C
Lo: 70°F 21°C
Sunrise 06:35 AM
Sunset 07:15 PM
Wind S 9 mph15 km/h
Dew Point 68°F20°C
uv Index 7
Barometric Pressure 29.88 in1012 mb
POP 17% *
Humidity 54%
Sat, 12th
Nelson IL Weather - Saturday, Sep 12, 2026 - Sunny
Hi: 91°F 33°C
Lo: 77°F 25°C
Sunrise 06:36 AM
Sunset 07:13 PM
Wind SW 13 mph20 km/h
Dew Point 65°F18°C
uv Index 8
Barometric Pressure 29.85 in1011 mb
POP 1% *
Humidity 45%
Sun, 13th
Nelson IL Weather - Sunday, Sep 13, 2026 - Patchy Rain Nearby
Hi: 90°F 32°C
Lo: 67°F 19°C
Sunrise 06:37 AM
Sunset 07:12 PM
Wind SSW 18 mph30 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 29.77 in1008 mb
POP 3% *
Humidity 51%
Mon, 14th
Nelson IL Weather - Monday, Sep 14, 2026 - Sunny
Hi: 76°F 25°C
Lo: 56°F 14°C
Sunrise 06:38 AM
Sunset 07:10 PM
Wind W 6 mph9 km/h
Dew Point 50°F10°C
uv Index 6
Barometric Pressure 30.09 in1019 mb
POP 2% *
Humidity 49%
Tue, 15th
Nelson IL Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 87°F 31°C
Lo: 61°F 16°C
Sunrise 06:39 AM
Sunset 07:08 PM
Wind S 19 mph30 km/h
Dew Point 66°F19°C
uv Index 7
Barometric Pressure 29.91 in1013 mb
POP 8% *
Humidity 63%
Wed, 16th
Nelson IL Weather - Wednesday, Sep 16, 2026 - Patchy Rain Nearby
Hi: 93°F 34°C
Lo: 75°F 24°C
Sunrise 06:40 AM
Sunset 07:06 PM
Wind SSW 18 mph28 km/h
Dew Point 67°F19°C
uv Index 7
Barometric Pressure 29.94 in1014 mb
POP 17% *
Humidity 51%
Thu, 17th
Nelson IL Weather - Thursday, Sep 17, 2026 - Overcast
Hi: 77°F 25°C
Lo: 63°F 17°C
Sunrise 06:41 AM
Sunset 07:04 PM
Wind W 10 mph16 km/h
Dew Point 68°F20°C
uv Index 5
Barometric Pressure 30.09 in1019 mb
POP 24% *
Humidity 81%
* POP = Probability of Precipitation. Data for 12:00 PM.