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Boulder IL Weather - Clear - 77°F
Clear
77°F
Updated 12:25 pm
Feels Like 67°F
Humidity 36%
Wind N/A N/A mph
Barometer  30.43 in
Dew Point 48°F
Boulder IL Weather - Clear - 25°C
Clear
25°C
Updated 12:25 pm
Feels Like 19°C
Humidity 36%
Wind N/A 0 km/h
Barometer  103 kPa
Dew Point 9°C
Boulder, IL Weather and Current Conditionsboulder il weather forecast

Boulder, IL Weather Forecast

Boulder Illinois WeatherBoulder, Illinois Weather Weather Forecast
14 Day API Boulder, IL Weather Forecast. Note: Our 7 day Boulder, Illinois weather forecast is our most reliable, and specific forecast. This model should only be used as a probable scenario. Forecasting more than 7 days ahead is challenging.
Boulder, IL Weather Forecast Dated: 1225 PM Sun Oct 25 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Sunday, October 25, 2026

Mid-Morning
Boulder Weather - 2026-10-25 - Morning - Overcast
60°F 16°C
Overcast
Mid-Afternoon
Boulder Weather - 2026-10-25 - Afternoon - Overcast
76°F 24°C
Overcast
Early-Evening
Boulder Weather - 2026-10-25 - Evening - Overcast
66°F 19°C
Overcast
Pleasant near 76°F 24°C, overcast throughout the day, with steady humidity and steady pressure.

Monday, October 26, 2026

Mid-Morning
Boulder Weather - 2026-10-26 - Morning - Overcast
62°F 17°C
Overcast
Mid-Afternoon
Boulder Weather - 2026-10-26 - Afternoon - Overcast
75°F 24°C
Overcast
Early-Evening
Boulder Weather - 2026-10-26 - Evening - Partly Cloudy
65°F 18°C
Partly Cloudy
Comfortable with temperatures reaching 75°F 24°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling.

Tuesday, October 27, 2026

Mid-Morning
Boulder Weather - 2026-10-27 - Morning - Overcast
61°F 16°C
Overcast
Mid-Afternoon
Boulder Weather - 2026-10-27 - Afternoon - Overcast
74°F 23°C
Overcast
Early-Evening
Boulder Weather - 2026-10-27 - Evening - Overcast
65°F 19°C
Overcast
Enjoyable around 74°F 23°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds out of the S at 8 mph 13 km/h.

Wednesday, October 28, 2026

Mid-Morning
Boulder Weather - 2026-10-28 - Morning - Sunny
61°F 16°C
Sunny
Mid-Afternoon
Boulder Weather - 2026-10-28 - Afternoon - Sunny
78°F 26°C
Sunny
Early-Evening
Boulder Weather - 2026-10-28 - Evening - Sunny
67°F 20°C
Sunny
Mild temperatures up to 78°F 26°C, sunny throughout the day, with lower humidity and steady pressure. Winds blowing from the S at 11 mph 18 km/h.

Thursday, October 29, 2026

Mid-Morning
Boulder Weather - 2026-10-29 - Morning - Overcast
62°F 16°C
Overcast
Mid-Afternoon
Boulder Weather - 2026-10-29 - Afternoon - Sunny
80°F 27°C
Sunny
Early-Evening
Boulder Weather - 2026-10-29 - Evening - Clear
68°F 20°C
Clear
Very warm with a high of 80°F 27°C, overcast in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds moving from the SSW to the S at 9 mph 14 km/h.

Friday, October 30, 2026

Mid-Morning
Boulder Weather - 2026-10-30 - Morning - Overcast
65°F 19°C
Overcast
Mid-Afternoon
Boulder Weather - 2026-10-30 - Afternoon - Overcast
77°F 25°C
Overcast
Early-Evening
Boulder Weather - 2026-10-30 - Evening - Partly Cloudy
69°F 21°C
Partly Cloudy
Pleasant near 77°F 25°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds swinging from the SSW to the S at 6 mph 10 km/h.

Saturday, October 31, 2026

Mid-Morning
Boulder Weather - 2026-10-31 - Morning - Overcast
66°F 19°C
Overcast
Mid-Afternoon
Boulder Weather - 2026-10-31 - Afternoon - Overcast
69°F 20°C
Overcast
Early-Evening
Boulder Weather - 2026-10-31 - Evening - Drizzle
65°F 19°C
Drizzle
Comfortable with temperatures reaching 69°F 20°C, drier conditions through late afternoon before showers move in, with increasing humidity and steady pressure.

Sunday, November 1, 2026

Mid-Morning
Boulder Weather - 2026-11-01 - Morning - Scattered Showers
64°F 18°C
Scattered Showers
Mid-Afternoon
Boulder Weather - 2026-11-01 - Afternoon - Scattered Showers
68°F 20°C
Scattered Showers
Early-Evening
Boulder Weather - 2026-11-01 - Evening - Partly Cloudy
64°F 18°C
Partly Cloudy
Enjoyable around 68°F 20°C, scattered downpours possible, with lower humidity and steady pressure.

Monday, November 2, 2026

Mid-Morning
Boulder Weather - 2026-11-02 - Morning - Overcast
63°F 17°C
Overcast
Mid-Afternoon
Boulder Weather - 2026-11-02 - Afternoon - Overcast
68°F 20°C
Overcast
Early-Evening
Boulder Weather - 2026-11-02 - Evening - Overcast
64°F 18°C
Overcast
Mild temperatures up to 68°F 20°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and steady pressure.

Tuesday, November 3, 2026

Mid-Morning
Boulder Weather - 2026-11-03 - Morning - Cloudy
63°F 17°C
Cloudy
Mid-Afternoon
Boulder Weather - 2026-11-03 - Afternoon - Partly Cloudy
67°F 19°C
Partly Cloudy
Early-Evening
Boulder Weather - 2026-11-03 - Evening - Partly Cloudy
59°F 15°C
Partly Cloudy
Mildly cool near 67°F 19°C, cloudy throughout the day, with steady humidity and steady pressure.

Wednesday, November 4, 2026

Mid-Morning
Boulder Weather - 2026-11-04 - Morning - Light Showers
59°F 15°C
Light Showers
Mid-Afternoon
Boulder Weather - 2026-11-04 - Afternoon - Light Rain
64°F 18°C
Light Rain
Early-Evening
Boulder Weather - 2026-11-04 - Evening - Light Rain
58°F 15°C
Light Rain
Comfortable at 64°F 18°C, persistent showers off and on through the day, with steady humidity and steady pressure.

Thursday, November 5, 2026

Mid-Morning
Boulder Weather - 2026-11-05 - Morning - Drizzle
58°F 14°C
Drizzle
Mid-Afternoon
Boulder Weather - 2026-11-05 - Afternoon - Scattered Showers
62°F 16°C
Scattered Showers
Early-Evening
Boulder Weather - 2026-11-05 - Evening - Drizzle
56°F 14°C
Drizzle
Cool with a high near 62°F 16°C, locally heavy downpours at times, with increasing humidity and steady pressure.

Friday, November 6, 2026

Mid-Morning
Boulder Weather - 2026-11-06 - Morning - Partly Cloudy
56°F 13°C
Partly Cloudy
Mid-Afternoon
Boulder Weather - 2026-11-06 - Afternoon - Cloudy
62°F 17°C
Cloudy
Early-Evening
Boulder Weather - 2026-11-06 - Evening - Cloudy
57°F 14°C
Cloudy
Refreshing around 62°F 17°C, partly cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds shifting from the WNW to the WSW at 5 mph 8 km/h.

Saturday, November 7, 2026

Mid-Morning
Boulder Weather - 2026-11-07 - Morning - Sunny
57°F 14°C
Sunny
Mid-Afternoon
Boulder Weather - 2026-11-07 - Afternoon - Sunny
65°F 18°C
Sunny
Early-Evening
Boulder Weather - 2026-11-07 - Evening - Clear
59°F 16°C
Clear
Mildly cool near 65°F 18°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling. Winds turning from the S to the SSE at 8 mph 13 km/h. Gusts up to 21 mph 33 km/h.

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Weather by the Numbers

Sun, 25th
Boulder IL Weather - Sunday, Oct 25, 2026 - Overcast
Hi: 76°F 24°C
Lo: 52°F 11°C
Sunrise 07:16 AM
Sunset 06:05 PM
Wind S 5 mph8 km/h
Dew Point 41°F5°C
uv Index 4
Barometric Pressure 30.39 in1029 mb
POP 10% *
Humidity 33%
Mon, 26th
Boulder IL Weather - Monday, Oct 26, 2026 - Overcast
Hi: 75°F 24°C
Lo: 56°F 14°C
Sunrise 07:17 AM
Sunset 06:03 PM
Wind SSW 6 mph10 km/h
Dew Point 44°F6°C
uv Index 3
Barometric Pressure 30.33 in1027 mb
POP 10% *
Humidity 36%
Tue, 27th
Boulder IL Weather - Tuesday, Oct 27, 2026 - Overcast
Hi: 74°F 23°C
Lo: 54°F 12°C
Sunrise 07:18 AM
Sunset 06:02 PM
Wind S 8 mph13 km/h
Dew Point 44°F6°C
uv Index 3
Barometric Pressure 30.27 in1025 mb
POP 10% *
Humidity 37%
Wed, 28th
Boulder IL Weather - Wednesday, Oct 28, 2026 - Sunny
Hi: 78°F 26°C
Lo: 54°F 12°C
Sunrise 07:19 AM
Sunset 06:01 PM
Wind S 10 mph16 km/h
Dew Point 42°F6°C
uv Index 3
Barometric Pressure 30.27 in1025 mb
POP 1% *
Humidity 32%
Thu, 29th
Boulder IL Weather - Thursday, Oct 29, 2026 - Sunny
Hi: 80°F 27°C
Lo: 56°F 13°C
Sunrise 07:20 AM
Sunset 06:00 PM
Wind SSW 14 mph23 km/h
Dew Point 42°F6°C
uv Index 6
Barometric Pressure 30.24 in1024 mb
POP 1% *
Humidity 30%
Fri, 30th
Boulder IL Weather - Friday, Oct 30, 2026 - Overcast
Hi: 78°F 25°C
Lo: 60°F 16°C
Sunrise 07:21 AM
Sunset 05:59 PM
Wind SSW 7 mph12 km/h
Dew Point 50°F10°C
uv Index 5
Barometric Pressure 30.18 in1022 mb
POP 10% *
Humidity 44%
Sat, 31st
Boulder IL Weather - Saturday, Oct 31, 2026 - Overcast
Hi: 70°F 21°C
Lo: 62°F 17°C
Sunrise 07:23 AM
Sunset 05:58 PM
Wind WSW 3 mph4 km/h
Dew Point 51°F11°C
uv Index 5
Barometric Pressure 30.12 in1020 mb
POP 12% *
Humidity 53%
Sun, 1st
Boulder IL Weather - Sunday, Nov 1, 2026 - Overcast
Hi: 68°F 20°C
Lo: 61°F 16°C
Sunrise 07:24 AM
Sunset 05:56 PM
Wind N 7 mph11 km/h
Dew Point 60°F15°C
uv Index 4
Barometric Pressure 29.97 in1015 mb
POP 21% *
Humidity 76%
Mon, 2nd
Boulder IL Weather - Monday, Nov 2, 2026 - Overcast
Hi: 68°F 20°C
Lo: 57°F 14°C
Sunrise 06:24 AM
Sunset 04:55 PM
Wind SE 4 mph6 km/h
Dew Point 57°F14°C
uv Index 5
Barometric Pressure 30.06 in1018 mb
POP 16% *
Humidity 67%
Tue, 3rd
Boulder IL Weather - Tuesday, Nov 3, 2026 - Cloudy
Hi: 67°F 19°C
Lo: 57°F 14°C
Sunrise 06:25 AM
Sunset 04:54 PM
Wind SE 5 mph9 km/h
Dew Point 52°F11°C
uv Index 4
Barometric Pressure 30 in1016 mb
POP 12% *
Humidity 60%
Wed, 4th
Boulder IL Weather - Wednesday, Nov 4, 2026 - Light Rain Shower
Hi: 64°F 18°C
Lo: 54°F 12°C
Sunrise 06:26 AM
Sunset 04:53 PM
Wind S 7 mph11 km/h
Dew Point 49°F9°C
uv Index 4
Barometric Pressure 29.97 in1015 mb
POP 36% *
Humidity 59%
Thu, 5th
Boulder IL Weather - Thursday, Nov 5, 2026 - Patchy Rain Nearby
Hi: 62°F 17°C
Lo: 53°F 12°C
Sunrise 06:28 AM
Sunset 04:52 PM
Wind S 8 mph13 km/h
Dew Point 53°F12°C
uv Index 4
Barometric Pressure 29.85 in1011 mb
POP 24% *
Humidity 73%
Fri, 6th
Boulder IL Weather - Friday, Nov 6, 2026 - Partly Cloudy
Hi: 63°F 17°C
Lo: 49°F 9°C
Sunrise 06:29 AM
Sunset 04:51 PM
Wind WNW 10 mph16 km/h
Dew Point 45°F7°C
uv Index 5
Barometric Pressure 29.91 in1013 mb
POP 6% *
Humidity 52%
Sat, 7th
Boulder IL Weather - Saturday, Nov 7, 2026 - Sunny
Hi: 66°F 19°C
Lo: 47°F 9°C
Sunrise 06:30 AM
Sunset 04:50 PM
Wind S 7 mph12 km/h
Dew Point 47°F8°C
uv Index 5
Barometric Pressure 29.94 in1014 mb
POP 2% *
Humidity 49%
* POP = Probability of Precipitation. Data for 12:00 PM.