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Current weather in Belknap is clear sky.

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This page shows hourly weather forecast for Belknap, including temperature, wind, precipitation, humidity and cloud cover.

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Weather data for Belknap is updated regularly with the latest available observations and forecasts.

Now · 6:50 AM

Belknap Weather & Hourly Forecast

United States · Illinois · 62908

78°F

Clear night

Feels like: 82°F

💧 Humidity 80% 🌡 Pressure 30.12 inHg 💨 Wind 8 mph 👁 Visibility 17.2 mi ☁ Clouds 0% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Belknap

Today

7:00 AM

Sunny

78° 💧 None 💨 8 mph H 80%30.12 inHg

10:00 AM

Sunny

86° 💧 None 💨 11 mph H 66%30.12 inHg

1:00 PM

Mostly sunny

93° 💧 0.005 in 💨 11 mph H 54%30.06 inHg

4:00 PM

Light thunderstorms

91° 💧 0.060 in 💨 6 mph H 61%30.00 inHg

7:00 PM

Sunny

85° 💧 0.036 in 💨 0 mph H 82%29.97 inHg

10:00 PM

Light rain

80° 💧 0.174 in 💨 4 mph H 92%30.03 inHg

Tomorrow

1:00 AM

Light rain

78° 💧 0.018 in 💨 6 mph H 90%29.97 inHg

4:00 AM

Mostly clear night

77° 💧 0.024 in 💨 9 mph H 85%29.97 inHg

7:00 AM

Light thunderstorms

74° 💧 0.124 in 💨 4 mph H 97%30.00 inHg

10:00 AM

Light thunderstorms

78° 💧 0.044 in 💨 4 mph H 90%30.00 inHg

1:00 PM

Mostly sunny

85° 💧 0.014 in 💨 6 mph H 68%29.97 inHg

4:00 PM

Light thunderstorms

84° 💧 0.047 in 💨 6 mph H 72%29.88 inHg

7:00 PM

Light rain

76° 💧 0.005 in 💨 5 mph H 94%29.91 inHg

10:00 PM

Mostly cloudy night

75° 💧 None 💨 1 mph H 96%29.97 inHg

Friday

1:00 AM

Light thunderstorms

73° 💧 0.119 in 💨 4 mph H 99%29.94 inHg

4:00 AM

Overcast night

73° 💧 0.021 in 💨 1 mph H 99%29.94 inHg

Today

7:00 AM

Sunny

78° 💧 None 💨 8 mph H 80%30.12 inHg

8:00 AM

Sunny

80° 💧 None 💨 8 mph H 76%30.12 inHg

9:00 AM

Sunny

83° 💧 None 💨 10 mph H 71%30.12 inHg

10:00 AM

Sunny

86° 💧 None 💨 11 mph H 66%30.12 inHg

11:00 AM

Sunny

89° 💧 None 💨 11 mph H 61%30.12 inHg

12:00 PM

Mostly sunny

91° 💧 None 💨 11 mph H 57%30.09 inHg

1:00 PM

Mostly sunny

93° 💧 None 💨 11 mph H 54%30.06 inHg

2:00 PM

Strong thunderstorm

94° 💧 0.001 in 💨 10 mph H 51%30.03 inHg

3:00 PM

Light thunderstorms

94° 💧 0.004 in 💨 8 mph H 51%30.03 inHg

4:00 PM

Light thunderstorms

91° 💧 0.038 in 💨 6 mph H 61%30.00 inHg

5:00 PM

Light thunderstorms

89° 💧 0.019 in 💨 5 mph H 65%30.00 inHg

6:00 PM

Mostly sunny

88° 💧 0.003 in 💨 2 mph H 69%30.00 inHg

7:00 PM

Sunny

85° 💧 0.001 in 💨 0 mph H 82%29.97 inHg

8:00 PM

Mostly cloudy night

82° 💧 0.002 in 💨 4 mph H 89%30.00 inHg

9:00 PM

Light rain

81° 💧 0.032 in 💨 3 mph H 91%30.00 inHg

10:00 PM

Light rain

80° 💧 0.036 in 💨 4 mph H 92%30.03 inHg

11:00 PM

Light rain

78° 💧 0.034 in 💨 5 mph H 92%30.00 inHg

Tomorrow

12:00 AM

Thunderstorms

78° 💧 0.104 in 💨 4 mph H 90%30.00 inHg

1:00 AM

Light rain

78° 💧 0.018 in 💨 6 mph H 90%29.97 inHg

2:00 AM

Clear night

78° 💧 0.000 in 💨 8 mph H 90%29.97 inHg

3:00 AM

Mostly clear night

77° 💧 None 💨 9 mph H 88%29.97 inHg

4:00 AM

Mostly clear night

77° 💧 None 💨 9 mph H 85%29.97 inHg

5:00 AM

Mostly clear night

77° 💧 0.000 in 💨 8 mph H 83%29.97 inHg

6:00 AM

Light thunderstorms

74° 💧 0.024 in 💨 11 mph H 92%30.00 inHg

7:00 AM

Light thunderstorms

74° 💧 0.085 in 💨 4 mph H 97%30.00 inHg

8:00 AM

Light rain

75° 💧 0.022 in 💨 2 mph H 96%30.03 inHg

9:00 AM

Light rain

76° 💧 0.017 in 💨 4 mph H 95%30.03 inHg

10:00 AM

Light thunderstorms

78° 💧 0.021 in 💨 4 mph H 90%30.00 inHg

11:00 AM

Light rain

81° 💧 0.019 in 💨 5 mph H 82%30.00 inHg

12:00 PM

Mostly sunny

83° 💧 0.004 in 💨 5 mph H 73%30.00 inHg

1:00 PM

Mostly sunny

85° 💧 0.000 in 💨 6 mph H 68%29.97 inHg

2:00 PM

Light thunderstorms

86° 💧 0.008 in 💨 7 mph H 67%29.94 inHg

3:00 PM

Light thunderstorms

86° 💧 0.006 in 💨 6 mph H 68%29.91 inHg

4:00 PM

Light thunderstorms

84° 💧 0.010 in 💨 6 mph H 72%29.88 inHg

5:00 PM

Light thunderstorms

78° 💧 0.023 in 💨 10 mph H 86%29.91 inHg

6:00 PM

Light rain

77° 💧 0.015 in 💨 6 mph H 90%29.91 inHg

7:00 PM

Light rain

76° 💧 0.005 in 💨 5 mph H 94%29.91 inHg

8:00 PM

Overcast night

75° 💧 0.001 in 💨 3 mph H 96%29.91 inHg

9:00 PM

Mostly cloudy night

75° 💧 None 💨 2 mph H 96%29.94 inHg

10:00 PM

Mostly cloudy night

75° 💧 None 💨 1 mph H 96%29.97 inHg

11:00 PM

Mostly cloudy night

74° 💧 None 💨 3 mph H 97%29.94 inHg

Friday

12:00 AM

Mostly cloudy night

74° 💧 None 💨 4 mph H 98%29.94 inHg

1:00 AM

Light thunderstorms

73° 💧 0.023 in 💨 4 mph H 99%29.94 inHg

2:00 AM

Light rain

74° 💧 0.080 in 💨 1 mph H 99%29.94 inHg

3:00 AM

Light rain

74° 💧 0.016 in 💨 2 mph H 99%29.94 inHg

4:00 AM

Overcast night

73° 💧 0.000 in 💨 1 mph H 99%29.94 inHg

5:00 AM

Overcast night

74° 💧 0.004 in 💨 1 mph H 98%29.94 inHg

6:00 AM

Light rain

74° 💧 0.017 in 💨 1 mph H 97%29.94 inHg

7:00 AM

Light rain

73° 💧 0.016 in 💨 4 mph H 98%29.94 inHg

8:00 AM

Light rain

73° 💧 0.006 in 💨 4 mph H 98%29.94 inHg

9:00 AM

Overcast

74° 💧 0.001 in 💨 4 mph H 93%29.94 inHg

10:00 AM

Overcast

77° 💧 0.003 in 💨 4 mph H 86%29.94 inHg

11:00 AM

Light rain

79° 💧 0.005 in 💨 5 mph H 81%29.94 inHg

12:00 PM

Overcast

80° 💧 0.004 in 💨 3 mph H 78%29.94 inHg

1:00 PM

Overcast

81° 💧 0.002 in 💨 3 mph H 76%29.91 inHg

2:00 PM

Overcast

82° 💧 0.001 in 💨 3 mph H 75%29.91 inHg

3:00 PM

Mostly cloudy

83° 💧 0.000 in 💨 1 mph H 73%29.88 inHg

4:00 PM

Mostly cloudy

84° 💧 0.001 in 💨 3 mph H 71%29.85 inHg

5:00 PM

Partly cloudy

82° 💧 0.003 in 💨 2 mph H 74%29.85 inHg

6:00 PM

Light rain

81° 💧 0.005 in 💨 4 mph H 77%29.85 inHg

7:00 PM

Partly cloudy

79° 💧 0.000 in 💨 3 mph H 87%29.85 inHg

10:00 PM

Partly cloudy night

75° 💧 None 💨 3 mph H 98%29.88 inHg

Saturday

1:00 AM

Clear night

74° 💧 None 💨 3 mph H 99%29.88 inHg

4:00 AM

Clear night

74° 💧 None 💨 3 mph H 99%29.88 inHg

7:00 AM

Mostly sunny

73° 💧 None 💨 2 mph H 100%29.91 inHg

10:00 AM

Sunny

82° 💧 None 💨 3 mph H 82%29.94 inHg

1:00 PM

Mostly sunny

87° 💧 None 💨 3 mph H 67%29.91 inHg

4:00 PM

Mostly sunny

88° 💧 None 💨 5 mph H 63%29.85 inHg

7:00 PM

Sunny

83° 💧 None 💨 2 mph H 77%29.91 inHg

10:00 PM

Clear night

78° 💧 None 💨 6 mph H 89%29.97 inHg

Sunday

1:00 AM

Mostly clear night

75° 💧 None 💨 4 mph H 95%29.97 inHg

4:00 AM

Clear night

73° 💧 None 💨 2 mph H 97%29.97 inHg

7:00 AM

Overcast

72° 💧 None 💨 3 mph H 100%30.00 inHg

10:00 AM

Sunny

81° 💧 None 💨 2 mph H 80%30.03 inHg

1:00 PM

Mostly sunny

88° 💧 None 💨 3 mph H 60%30.00 inHg

4:00 PM

Sunny

89° 💧 None 💨 5 mph H 54%29.94 inHg

7:00 PM

Sunny

83° 💧 None 💨 5 mph H 70%29.94 inHg

10:00 PM

Clear night

80° 💧 None 💨 6 mph H 77%30.00 inHg

Monday

1:00 AM

Clear night

77° 💧 None 💨 4 mph H 86%29.97 inHg

4:00 AM

Clear night

76° 💧 None 💨 4 mph H 90%29.97 inHg

7:00 AM

Sunny

76° 💧 None 💨 6 mph H 89%30.00 inHg

10:00 AM

Sunny

84° 💧 None 💨 8 mph H 74%30.00 inHg

1:00 PM

Mostly sunny

89° 💧 None 💨 8 mph H 61%29.97 inHg

4:00 PM

Sunny

91° 💧 None 💨 8 mph H 58%29.94 inHg

7:00 PM

Sunny

85° 💧 None 💨 4 mph H 72%29.91 inHg

Tuesday

1:00 AM

Clear night

81° 💧 None 💨 6 mph H 78%29.97 inHg

7:00 AM

Moderate rain

77° 💧 None 💨 10 mph H 90%30.06 inHg

1:00 PM

Sunny

90° 💧 None 💨 4 mph H 60%30.06 inHg

7:00 PM

Partly cloudy

81° 💧 None 💨 6 mph H 86%30.03 inHg

Wednesday

1:00 AM

Clear night

77° 💧 None 💨 5 mph H 89%30.12 inHg

7:00 AM

Overcast

73° 💧 None 💨 6 mph H 87%30.15 inHg

1:00 PM

Mostly sunny

86° 💧 None 💨 5 mph H 61%30.15 inHg

7:00 PM

Sunny

82° 💧 None 💨 5 mph H 64%30.09 inHg

Thursday

1:00 AM

Clear night

75° 💧 None 💨 4 mph H 80%30.12 inHg

7:00 AM

Sunny

73° 💧 None 💨 4 mph H 92%30.15 inHg

1:00 PM

Mostly sunny

89° 💧 None 💨 2 mph H 60%30.12 inHg

7:00 PM

Mostly sunny

86° 💧 None 💨 1 mph H 72%30.03 inHg

Friday

1:00 AM

Clear night

79° 💧 None 💨 4 mph H 84%30.03 inHg

7:00 AM

Sunny

76° 💧 None 💨 2 mph H 92%30.09 inHg

1:00 PM

Mostly sunny

92° 💧 None 💨 1 mph H 51%30.03 inHg

7:00 PM

Partly cloudy

87° 💧 None 💨 1 mph H 57%29.97 inHg

Saturday

1:00 AM

Clear night

79° 💧 None 💨 3 mph H 83%29.97 inHg

7:00 AM

Sunny

78° 💧 None 💨 2 mph H 88%29.97 inHg

1:00 PM

Sunny

93° 💧 None 💨 8 mph H 49%29.88 inHg

7:00 PM

Mostly clear night

89° 💧 None 💨 8 mph H 52%29.80 inHg

Sunday

1:00 AM

Clear night

84° 💧 None 💨 8 mph H 63%29.83 inHg

7:00 AM

Sunny

81° 💧 None 💨 8 mph H 66%29.85 inHg

1:00 PM

Mostly sunny

95° 💧 None 💨 11 mph H 44%29.83 inHg

7:00 PM

Moderate rain

74° 💧 None 💨 9 mph H 96%29.85 inHg

Monday

1:00 AM

Overcast night

75° 💧 None 💨 3 mph H 97%29.91 inHg

7:00 AM

Light rain

74° 💧 None 💨 2 mph H 98%29.91 inHg

1:00 PM

Overcast

85° 💧 None 💨 7 mph H 66%29.94 inHg

7:00 PM

Overcast night

83° 💧 None 💨 2 mph H 80%29.91 inHg

Tuesday

1:00 AM

Overcast night

79° 💧 None 💨 7 mph H 87%29.94 inHg

7:00 AM

Mostly sunny

79° 💧 None 💨 8 mph H 78%29.97 inHg

1:00 PM

Light rain

80° 💧 None 💨 4 mph H 88%30.03 inHg

7:00 PM

Mostly cloudy night

83° 💧 None 💨 1 mph H 81%29.97 inHg

Wednesday

1:00 AM

Clear night

78° 💧 None 💨 3 mph H 95%30.03 inHg

7:00 AM

Moderate rain

73° 💧 None 💨 3 mph H 98%30.09 inHg

1:00 PM

Overcast

85° 💧 None 💨 3 mph H 73%30.06 inHg

7:00 PM

Mostly clear night

83° 💧 None 💨 4 mph H 79%29.97 inHg

In Belknap and, more broadly, across the state of Illinois: This morning, the sky is mostly sunny with a few clouds scattered across the sky. Temperatures are expected to be mild, ranging from around 69 to 79 degrees Fahrenheit. The wind is light out of the southwest at about 7 mph, with occasional gusts reaching up to 19 mph.

In the afternoon, conditions will remain generally pleasant with continued mostly sunny skies. There is a possibility of some light rain, with an estimated accumulation of around 0.16 inches, and a high likelihood of rain reaching 100%. Winds will stay relatively gentle but may gust occasionally, maintaining a southwest direction. Overall, it should be a warm day with a slight chance of showers in the late afternoon.

15-Day Weather Outlook for Belknap

TomorrowTomorrow

Thunderstorms 86°/74° 💧 None 💨 11 mph

Friday, Sep 11Fri Sep 11

Light thunderstorms 84°/73° 💧 None 💨 5 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 88°/73° 💧 0.826 in 💨 5 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 89°/72° 💧 None 💨 6 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 91°/76° 💧 0.008 in 💨 8 mph

Tuesday, Sep 15Tue Sep 15

Moderate rain 90°/77° 💧 0.035 in 💨 10 mph

Wednesday, Sep 16Wed Sep 16

Partly cloudy 86°/73° 💧 0.081 in 💨 6 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 89°/73° 💧 0.001 in 💨 5 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 92°/76° 💧 0.006 in 💨 4 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 93°/78° 💧 0.002 in 💨 8 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 95°/81° 💧 0.001 in 💨 11 mph

Monday, Sep 21Mon Sep 21

Moderate rain 85°/74° 💧 0.363 in 💨 9 mph

Tuesday, Sep 22Tue Sep 22

Light rain 83°/79° 💧 0.183 in 💨 8 mph

Wednesday, Sep 23Wed Sep 23

Moderate rain 85°/73° 💧 0.127 in 💨 3 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 83°/83° 💧 None 💨 4 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Belknap

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Belknap

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 7:00 AM

PM2.5 Fine particles Good 5,9µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 6,4µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 55,2µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 2,7µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Belknap

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,9High 😊Good

Tomorrow UV 7,0High 🙂Fair

Friday UV 6,3High 🙂Fair

Saturday UV 7,5High 🙂Fair

Sunday UV 8,0Very high 😊Good

Monday UV 9,0Very high —Unavailable

Tuesday UV 9,0Very high —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,5 9:00 AMUV 1,7 10:00 AMUV 3,6 11:00 AMUV 5,8 12:00 PMUV 7,4 1:00 PMUV 7,9 2:00 PMUV 7,1 3:00 PMUV 5,3 4:00 PMUV 1,5 5:00 PMUV 1,0 6:00 PMUV 0,4

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure. High humidity can make it feel hotter.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Belknap

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · BELKNAP, ILLINOIS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 2:00 AM–3:00 AM.

91/100Best-hour score

BEST TIME TONIGHT 2:00 AM–3:00 AM Astronomical darkness: 8:42 PM–5:04 AM

☁ Cloud cover 9% Real hourly forecast for the best viewing hour.

☾ Moonlight 3% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 57° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min72%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Belknap were last refreshed today at 6:50 AM. The current forecast period extends through 11/09/2026 at 4:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.