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Current weather in Rochester is broken clouds.

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

Now · 1:38 AM

Rochester Weather & Hourly Forecast

United States · Illinois · 62563

71°F

Mostly cloudy night

Feels like: 68°F

💧 Humidity 64% 🌡 Pressure 30.03 inHg 💨 Wind 11 mph 👁 Visibility 20.0 mi ☁ Clouds 89% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Rochester

Today

2:00 AM

Mostly cloudy night

71° 💧 None 💨 11 mph H 64%30.03 inHg

5:00 AM

Overcast night

72° 💧 None 💨 11 mph H 72%30.00 inHg

8:00 AM

Sunny

75° 💧 None 💨 11 mph H 73%30.03 inHg

11:00 AM

Sunny

87° 💧 None 💨 11 mph H 60%30.06 inHg

2:00 PM

Sunny

93° 💧 0.039 in 💨 9 mph H 47%30.03 inHg

5:00 PM

Light rain

84° 💧 0.034 in 💨 4 mph H 77%30.03 inHg

8:00 PM

Clear night

78° 💧 None 💨 3 mph H 90%30.06 inHg

11:00 PM

Clear night

77° 💧 None 💨 4 mph H 82%30.12 inHg

Tomorrow

2:00 AM

Partly cloudy night

76° 💧 0.000 in 💨 2 mph H 86%30.12 inHg

5:00 AM

Partly cloudy night

73° 💧 0.010 in 💨 3 mph H 95%30.15 inHg

8:00 AM

Mostly cloudy

76° 💧 0.001 in 💨 6 mph H 88%30.21 inHg

11:00 AM

Sunny

88° 💧 0.000 in 💨 7 mph H 59%30.21 inHg

2:00 PM

Strong thunderstorm

94° 💧 0.006 in 💨 8 mph H 48%30.18 inHg

5:00 PM

Sunny

91° 💧 0.001 in 💨 6 mph H 51%30.12 inHg

8:00 PM

Clear night

83° 💧 None 💨 5 mph H 68%30.15 inHg

11:00 PM

Clear night

80° 💧 None 💨 6 mph H 75%30.18 inHg

Today

2:00 AM

Mostly cloudy night

71° 💧 None 💨 11 mph H 64%30.03 inHg

3:00 AM

Mostly cloudy night

72° 💧 None 💨 12 mph H 66%30.00 inHg

4:00 AM

Mostly cloudy night

72° 💧 None 💨 12 mph H 69%30.00 inHg

5:00 AM

Overcast night

72° 💧 None 💨 11 mph H 72%30.00 inHg

6:00 AM

Clear night

72° 💧 None 💨 12 mph H 74%30.00 inHg

7:00 AM

Sunny

73° 💧 None 💨 11 mph H 76%30.03 inHg

8:00 AM

Sunny

75° 💧 None 💨 11 mph H 73%30.03 inHg

9:00 AM

Sunny

79° 💧 None 💨 10 mph H 70%30.03 inHg

10:00 AM

Sunny

83° 💧 None 💨 11 mph H 64%30.06 inHg

11:00 AM

Sunny

87° 💧 None 💨 11 mph H 60%30.06 inHg

12:00 PM

Partly cloudy

90° 💧 None 💨 10 mph H 56%30.03 inHg

1:00 PM

Sunny

92° 💧 None 💨 10 mph H 51%30.03 inHg

2:00 PM

Sunny

93° 💧 None 💨 9 mph H 47%30.03 inHg

3:00 PM

Mostly sunny

94° 💧 0.000 in 💨 7 mph H 47%30.00 inHg

4:00 PM

Light thunderstorms

85° 💧 0.039 in 💨 11 mph H 68%30.03 inHg

5:00 PM

Light rain

84° 💧 0.033 in 💨 4 mph H 77%30.03 inHg

6:00 PM

Sunny

84° 💧 0.000 in 💨 2 mph H 73%30.03 inHg

7:00 PM

Sunny

81° 💧 None 💨 2 mph H 85%30.03 inHg

8:00 PM

Clear night

78° 💧 None 💨 3 mph H 90%30.06 inHg

9:00 PM

Clear night

78° 💧 None 💨 3 mph H 89%30.09 inHg

10:00 PM

Clear night

77° 💧 None 💨 4 mph H 88%30.09 inHg

11:00 PM

Clear night

77° 💧 None 💨 4 mph H 82%30.12 inHg

Tomorrow

12:00 AM

Mostly clear night

77° 💧 None 💨 4 mph H 81%30.12 inHg

1:00 AM

Mostly clear night

77° 💧 None 💨 2 mph H 81%30.12 inHg

2:00 AM

Partly cloudy night

76° 💧 None 💨 2 mph H 86%30.12 inHg

3:00 AM

Partly cloudy night

75° 💧 None 💨 2 mph H 89%30.12 inHg

4:00 AM

Partly cloudy night

73° 💧 0.000 in 💨 3 mph H 93%30.12 inHg

5:00 AM

Partly cloudy night

73° 💧 0.002 in 💨 3 mph H 95%30.15 inHg

6:00 AM

Light thunderstorms

73° 💧 0.006 in 💨 6 mph H 96%30.18 inHg

7:00 AM

Mostly cloudy

73° 💧 0.001 in 💨 7 mph H 93%30.18 inHg

8:00 AM

Mostly cloudy

76° 💧 0.001 in 💨 6 mph H 88%30.21 inHg

9:00 AM

Mostly sunny

81° 💧 None 💨 8 mph H 78%30.21 inHg

10:00 AM

Sunny

85° 💧 None 💨 8 mph H 66%30.21 inHg

11:00 AM

Sunny

88° 💧 None 💨 7 mph H 59%30.21 inHg

12:00 PM

Sunny

91° 💧 None 💨 6 mph H 55%30.21 inHg

1:00 PM

Sunny

92° 💧 0.000 in 💨 7 mph H 53%30.21 inHg

2:00 PM

Strong thunderstorm

94° 💧 0.001 in 💨 8 mph H 48%30.18 inHg

3:00 PM

Mostly sunny

93° 💧 0.002 in 💨 8 mph H 47%30.15 inHg

4:00 PM

Mostly sunny

93° 💧 0.002 in 💨 7 mph H 48%30.15 inHg

5:00 PM

Sunny

91° 💧 0.001 in 💨 6 mph H 51%30.12 inHg

6:00 PM

Sunny

89° 💧 0.000 in 💨 5 mph H 58%30.12 inHg

7:00 PM

Sunny

86° 💧 None 💨 7 mph H 62%30.15 inHg

8:00 PM

Clear night

83° 💧 None 💨 5 mph H 68%30.15 inHg

9:00 PM

Clear night

81° 💧 None 💨 4 mph H 73%30.15 inHg

10:00 PM

Clear night

81° 💧 None 💨 5 mph H 74%30.18 inHg

11:00 PM

Clear night

80° 💧 None 💨 6 mph H 75%30.18 inHg

Thursday

12:00 AM

Clear night

81° 💧 None 💨 7 mph H 72%30.18 inHg

1:00 AM

Clear night

81° 💧 None 💨 8 mph H 66%30.18 inHg

2:00 AM

Clear night

80° 💧 None 💨 9 mph H 65%30.15 inHg

3:00 AM

Clear night

79° 💧 None 💨 9 mph H 64%30.15 inHg

4:00 AM

Clear night

79° 💧 None 💨 9 mph H 66%30.15 inHg

5:00 AM

Clear night

79° 💧 None 💨 10 mph H 66%30.18 inHg

6:00 AM

Clear night

78° 💧 None 💨 9 mph H 67%30.18 inHg

7:00 AM

Sunny

78° 💧 None 💨 9 mph H 69%30.18 inHg

8:00 AM

Mostly sunny

80° 💧 None 💨 8 mph H 65%30.21 inHg

9:00 AM

Sunny

83° 💧 None 💨 7 mph H 61%30.21 inHg

10:00 AM

Sunny

86° 💧 None 💨 8 mph H 56%30.21 inHg

11:00 AM

Sunny

90° 💧 None 💨 8 mph H 52%30.21 inHg

12:00 PM

Sunny

92° 💧 None 💨 8 mph H 50%30.18 inHg

1:00 PM

Sunny

93° 💧 None 💨 7 mph H 48%30.15 inHg

2:00 PM

Sunny

95° 💧 0.000 in 💨 7 mph H 45%30.15 inHg

3:00 PM

Sunny

95° 💧 None 💨 7 mph H 45%30.12 inHg

4:00 PM

Mostly sunny

95° 💧 None 💨 6 mph H 44%30.12 inHg

5:00 PM

Light thunderstorms

90° 💧 0.041 in 💨 6 mph H 56%30.12 inHg

6:00 PM

Light thunderstorms

89° 💧 0.009 in 💨 4 mph H 63%30.12 inHg

7:00 PM

Partly cloudy

86° 💧 0.000 in 💨 3 mph H 70%30.12 inHg

10:00 PM

Clear night

79° 💧 None 💨 3 mph H 89%30.12 inHg

Friday

1:00 AM

Clear night

76° 💧 None 💨 6 mph H 96%30.15 inHg

4:00 AM

Clear night

73° 💧 None 💨 7 mph H 96%30.15 inHg

7:00 AM

Partly cloudy

70° 💧 None 💨 7 mph H 98%30.21 inHg

10:00 AM

Sunny

77° 💧 None 💨 8 mph H 77%30.21 inHg

1:00 PM

Overcast

85° 💧 None 💨 6 mph H 63%30.12 inHg

4:00 PM

Light rain

85° 💧 None 💨 7 mph H 63%30.06 inHg

7:00 PM

Sunny

80° 💧 None 💨 7 mph H 75%30.06 inHg

10:00 PM

Clear night

76° 💧 None 💨 10 mph H 78%30.06 inHg

Saturday

1:00 AM

Clear night

73° 💧 None 💨 9 mph H 81%30.03 inHg

4:00 AM

Mostly cloudy night

72° 💧 None 💨 8 mph H 84%29.97 inHg

7:00 AM

Partly cloudy

72° 💧 None 💨 8 mph H 87%29.97 inHg

10:00 AM

Mostly sunny

82° 💧 None 💨 9 mph H 72%29.94 inHg

1:00 PM

Mostly sunny

91° 💧 None 💨 9 mph H 50%29.88 inHg

4:00 PM

Mostly cloudy

92° 💧 None 💨 9 mph H 42%29.85 inHg

7:00 PM

Mostly cloudy

84° 💧 None 💨 5 mph H 60%29.80 inHg

10:00 PM

Light rain

74° 💧 None 💨 10 mph H 88%29.88 inHg

Sunday

1:00 AM

Partly cloudy night

73° 💧 None 💨 3 mph H 96%29.85 inHg

4:00 AM

Partly cloudy night

72° 💧 None 💨 1 mph H 97%29.85 inHg

7:00 AM

Mostly cloudy

72° 💧 None 💨 4 mph H 97%29.88 inHg

10:00 AM

Overcast

80° 💧 None 💨 6 mph H 83%29.91 inHg

1:00 PM

Partly cloudy

85° 💧 None 💨 4 mph H 66%29.88 inHg

7:00 PM

Light rain

79° 💧 None 💨 6 mph H 79%29.91 inHg

Monday

1:00 AM

Moderate rain

74° 💧 None 💨 3 mph H 96%29.91 inHg

7:00 AM

Overcast

68° 💧 None 💨 7 mph H 83%29.94 inHg

1:00 PM

Overcast

67° 💧 None 💨 8 mph H 85%30.00 inHg

7:00 PM

Overcast night

72° 💧 None 💨 12 mph H 67%30.03 inHg

Tuesday

1:00 AM

Overcast night

69° 💧 None 💨 11 mph H 67%30.03 inHg

7:00 AM

Overcast

64° 💧 None 💨 11 mph H 72%30.09 inHg

1:00 PM

Overcast

60° 💧 None 💨 11 mph H 77%30.15 inHg

7:00 PM

Overcast night

69° 💧 None 💨 13 mph H 53%30.18 inHg

Wednesday

1:00 AM

Overcast night

67° 💧 None 💨 10 mph H 54%30.15 inHg

7:00 AM

Overcast

63° 💧 None 💨 13 mph H 54%30.18 inHg

1:00 PM

Overcast

58° 💧 None 💨 10 mph H 70%30.24 inHg

7:00 PM

Clear night

70° 💧 None 💨 10 mph H 62%30.21 inHg

Thursday

1:00 AM

Overcast night

71° 💧 None 💨 7 mph H 66%30.18 inHg

7:00 AM

Overcast

66° 💧 None 💨 7 mph H 80%30.21 inHg

1:00 PM

Mostly sunny

65° 💧 None 💨 7 mph H 84%30.24 inHg

7:00 PM

Clear night

77° 💧 None 💨 5 mph H 63%30.24 inHg

Friday

1:00 AM

Overcast night

75° 💧 None 💨 4 mph H 72%30.18 inHg

7:00 AM

Overcast

71° 💧 None 💨 3 mph H 83%30.21 inHg

1:00 PM

Light rain

69° 💧 None 💨 5 mph H 87%30.24 inHg

7:00 PM

Mostly clear night

80° 💧 None 💨 4 mph H 62%30.24 inHg

Saturday

1:00 AM

Mostly cloudy night

74° 💧 None 💨 5 mph H 74%30.18 inHg

7:00 AM

Mostly sunny

66° 💧 None 💨 4 mph H 87%30.18 inHg

1:00 PM

Overcast

63° 💧 None 💨 3 mph H 88%30.18 inHg

7:00 PM

Overcast night

79° 💧 None 💨 3 mph H 51%30.15 inHg

Sunday

1:00 AM

Overcast night

73° 💧 None 💨 5 mph H 59%30.06 inHg

7:00 AM

Overcast

64° 💧 None 💨 4 mph H 77%30.03 inHg

1:00 PM

Overcast

62° 💧 None 💨 4 mph H 88%30.00 inHg

7:00 PM

Mostly cloudy night

81° 💧 None 💨 7 mph H 48%29.94 inHg

Monday

1:00 AM

Clear night

76° 💧 None 💨 6 mph H 60%29.88 inHg

7:00 AM

Sunny

71° 💧 None 💨 9 mph H 61%29.85 inHg

1:00 PM

Partly cloudy

69° 💧 None 💨 8 mph H 77%29.88 inHg

7:00 PM

Overcast night

85° 💧 None 💨 6 mph H 53%29.88 inHg

Tuesday

1:00 AM

Mostly clear night

79° 💧 None 💨 4 mph H 70%29.85 inHg

7:00 AM

Sunny

70° 💧 None 💨 3 mph H 85%29.91 inHg

1:00 PM

Sunny

65° 💧 None 💨 1 mph H 97%29.97 inHg

In Rochester and, more broadly, across the state of Illinois: The evening will feature mostly cloudy skies with temperatures remaining mild to warm, ranging from 75 to 77 degrees Fahrenheit. Winds will be moderate from the southeast, reaching up to 16 mph, with gusts that could peak at 38 mph. No rain is expected during these hours, so the night should be dry. Expect the wind to be noticeable, especially with gusts, but otherwise, it should be a calm evening overall. Temperatures are unlikely to drop significantly, providing a relatively comfortable night ahead.

15-Day Weather Outlook for Rochester

TomorrowTomorrow

Light thunderstorms 94°/73° 💧 None 💨 8 mph

Thursday, Sep 17Thu Sep 17

Light thunderstorms 95°/78° 💧 0.002 in 💨 10 mph

Friday, Sep 18Fri Sep 18

Light rain 85°/70° 💧 0.267 in 💨 10 mph

Saturday, Sep 19Sat Sep 19

Light rain 92°/72° 💧 0.065 in 💨 10 mph

Sunday, Sep 20Sun Sep 20

Light rain 85°/72° 💧 0.255 in 💨 6 mph

Monday, Sep 21Mon Sep 21

Moderate rain 74°/67° 💧 0.576 in 💨 12 mph

Tuesday, Sep 22Tue Sep 22

Overcast 69°/60° 💧 0.002 in 💨 13 mph

Wednesday, Sep 23Wed Sep 23

Overcast 70°/58° 💧 0.008 in 💨 13 mph

Thursday, Sep 24Thu Sep 24

Overcast 77°/65° 💧 None 💨 7 mph

Friday, Sep 25Fri Sep 25

Light rain 80°/69° 💧 0.036 in 💨 5 mph

Saturday, Sep 26Sat Sep 26

Mostly cloudy 79°/63° 💧 0.016 in 💨 5 mph

Sunday, Sep 27Sun Sep 27

Overcast 81°/62° 💧 0.001 in 💨 7 mph

Monday, Sep 28Mon Sep 28

Partly cloudy 85°/69° 💧 0.006 in 💨 9 mph

Tuesday, Sep 29Tue Sep 29

Mostly sunny 79°/65° 💧 0.002 in 💨 4 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Rochester

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Rochester

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 2:00 AM

PM2.5 Fine particles Good 8,7µg/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 9,8µg/m³

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

O₃ Ozone Fair 83,0µg/m³

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

NO₂ Nitrogen dioxide Good 3,5µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Rochester

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 5,4Moderate 🙂Fair

Tomorrow UV 6,6High 🙂Fair

Thursday UV 8,0Very high 🙂Fair

Friday UV 8,0Very high 😐Moderate

Saturday UV 9,0Very high 😊Good

Sunday UV 8,0Very high —Unavailable

Monday UV 7,0High —Unavailable

Hourly UV index today

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

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

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 Rochester

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · ROCHESTER, ILLINOIS

Tonight's Stargazing & Shooting Stars

Local night-sky conditions and meteor activity for Jasper.

43/100Best-hour score

No good viewing window tonight Astronomical darkness exists, but current sky conditions are unfavorable.

☁ Cloud cover 79% Real hourly forecast for the best viewing hour.

☾ Moonlight 13% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 84° high at the best hour.

✦ Estimated visible meteors Poor visibility Meteor activity may occur above the clouds, but local viewing conditions are not suitable.

Chance ≥1 meteor in 30 minNot meaningful

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

Explore current conditions and forecasts for other locations.

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Forecast data for Rochester were last refreshed today at 1:38 AM. The current forecast period extends through 16/09/2026 at 11:00 PM. 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.