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Current weather in Sullivan is clear sky.

Where can I find the hourly weather forecast for Sullivan?

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

Is the weather forecast for Sullivan updated regularly?

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

Now · 11:01 PM

Sullivan Weather & Hourly Forecast

United States · Indiana · 47882

79°F

Clear night

Feels like: 80°F

💧 Humidity 73% 🌡 Pressure 30.00 inHg 💨 Wind 10 mph 👁 Visibility 6.2 mi ☁ Clouds 4% ☀️ UV index 0.0 · Low 🌅 Sunrise 7:17 AM 🌇 Sunset 8:22 PM

Hourly Forecast for Sullivan

Tomorrow

12:00 AM

Clear night

79° 💧 None 💨 10 mph H 73%30.00 inHg

3:00 AM

Clear night

76° 💧 None 💨 7 mph H 72%30.00 inHg

6:00 AM

Clear night

74° 💧 None 💨 7 mph H 73%30.00 inHg

9:00 AM

Mostly cloudy

79° 💧 None 💨 7 mph H 64%30.06 inHg

12:00 PM

Partly cloudy

91° 💧 None 💨 8 mph H 40%30.03 inHg

3:00 PM

Sunny

99° 💧 None 💨 7 mph H 31%29.97 inHg

6:00 PM

Sunny

99° 💧 None 💨 6 mph H 30%29.94 inHg

9:00 PM

Clear night

85° 💧 None 💨 8 mph H 52%29.97 inHg

Wednesday

12:00 AM

Clear night

82° 💧 None 💨 8 mph H 58%29.97 inHg

3:00 AM

Clear night

79° 💧 None 💨 7 mph H 61%29.97 inHg

6:00 AM

Clear night

77° 💧 None 💨 7 mph H 65%30.00 inHg

9:00 AM

Sunny

81° 💧 None 💨 8 mph H 62%30.03 inHg

12:00 PM

Sunny

94° 💧 None 💨 10 mph H 38%30.03 inHg

3:00 PM

Sunny

101° 💧 None 💨 9 mph H 29%29.94 inHg

6:00 PM

Sunny

100° 💧 None 💨 9 mph H 30%29.91 inHg

9:00 PM

Partly cloudy night

90° 💧 None 💨 10 mph H 43%29.91 inHg

Tomorrow

12:00 AM

Clear night

79° 💧 None 💨 10 mph H 73%30.00 inHg

1:00 AM

Clear night

78° 💧 None 💨 9 mph H 72%30.00 inHg

2:00 AM

Clear night

77° 💧 None 💨 8 mph H 71%30.00 inHg

3:00 AM

Clear night

76° 💧 None 💨 7 mph H 72%30.00 inHg

4:00 AM

Clear night

75° 💧 None 💨 7 mph H 71%30.00 inHg

5:00 AM

Clear night

74° 💧 None 💨 7 mph H 72%30.00 inHg

6:00 AM

Clear night

74° 💧 None 💨 7 mph H 73%30.00 inHg

7:00 AM

Clear night

73° 💧 None 💨 8 mph H 71%30.03 inHg

8:00 AM

Mostly sunny

74° 💧 None 💨 7 mph H 71%30.03 inHg

9:00 AM

Mostly cloudy

79° 💧 None 💨 7 mph H 64%30.06 inHg

10:00 AM

Mostly cloudy

83° 💧 None 💨 10 mph H 54%30.03 inHg

11:00 AM

Partly cloudy

88° 💧 None 💨 9 mph H 47%30.03 inHg

12:00 PM

Partly cloudy

91° 💧 None 💨 8 mph H 40%30.03 inHg

1:00 PM

Partly cloudy

94° 💧 None 💨 8 mph H 35%30.03 inHg

2:00 PM

Mostly sunny

97° 💧 None 💨 8 mph H 33%30.00 inHg

3:00 PM

Sunny

99° 💧 None 💨 7 mph H 31%29.97 inHg

4:00 PM

Sunny

99° 💧 None 💨 7 mph H 29%29.97 inHg

5:00 PM

Sunny

100° 💧 None 💨 7 mph H 28%29.94 inHg

6:00 PM

Sunny

99° 💧 None 💨 6 mph H 30%29.94 inHg

7:00 PM

Sunny

95° 💧 None 💨 7 mph H 38%29.94 inHg

8:00 PM

Sunny

88° 💧 None 💨 9 mph H 46%29.94 inHg

9:00 PM

Clear night

85° 💧 None 💨 8 mph H 52%29.97 inHg

10:00 PM

Clear night

83° 💧 None 💨 8 mph H 53%29.97 inHg

11:00 PM

Clear night

82° 💧 None 💨 8 mph H 56%29.97 inHg

Wednesday

12:00 AM

Clear night

82° 💧 None 💨 8 mph H 58%29.97 inHg

1:00 AM

Clear night

82° 💧 None 💨 8 mph H 58%29.97 inHg

2:00 AM

Clear night

80° 💧 None 💨 8 mph H 59%30.00 inHg

3:00 AM

Clear night

79° 💧 None 💨 7 mph H 61%29.97 inHg

4:00 AM

Clear night

78° 💧 None 💨 7 mph H 62%29.97 inHg

5:00 AM

Clear night

78° 💧 None 💨 7 mph H 64%30.00 inHg

6:00 AM

Clear night

77° 💧 None 💨 7 mph H 65%30.00 inHg

7:00 AM

Clear night

76° 💧 None 💨 7 mph H 66%30.00 inHg

8:00 AM

Sunny

77° 💧 None 💨 7 mph H 67%30.03 inHg

9:00 AM

Sunny

81° 💧 None 💨 8 mph H 62%30.03 inHg

10:00 AM

Sunny

86° 💧 None 💨 10 mph H 53%30.03 inHg

11:00 AM

Sunny

91° 💧 None 💨 10 mph H 45%30.03 inHg

12:00 PM

Sunny

94° 💧 None 💨 10 mph H 38%30.03 inHg

1:00 PM

Sunny

97° 💧 None 💨 10 mph H 34%30.00 inHg

2:00 PM

Sunny

101° 💧 None 💨 10 mph H 31%29.97 inHg

3:00 PM

Sunny

101° 💧 None 💨 9 mph H 29%29.94 inHg

4:00 PM

Sunny

102° 💧 None 💨 9 mph H 28%29.94 inHg

5:00 PM

Sunny

102° 💧 None 💨 8 mph H 28%29.91 inHg

6:00 PM

Sunny

100° 💧 None 💨 9 mph H 30%29.91 inHg

7:00 PM

Mostly sunny

97° 💧 None 💨 11 mph H 36%29.91 inHg

8:00 PM

Mostly sunny

93° 💧 None 💨 11 mph H 38%29.91 inHg

9:00 PM

Partly cloudy night

90° 💧 None 💨 10 mph H 43%29.91 inHg

10:00 PM

Mostly clear night

85° 💧 None 💨 8 mph H 51%29.94 inHg

11:00 PM

Partly cloudy night

84° 💧 None 💨 8 mph H 54%29.94 inHg

Thursday

12:00 AM

Partly cloudy night

84° 💧 None 💨 8 mph H 54%29.94 inHg

1:00 AM

Partly cloudy night

81° 💧 None 💨 9 mph H 58%29.94 inHg

2:00 AM

Partly cloudy night

79° 💧 None 💨 8 mph H 60%29.94 inHg

3:00 AM

Mostly cloudy night

79° 💧 None 💨 9 mph H 60%29.94 inHg

4:00 AM

Mostly cloudy night

78° 💧 None 💨 8 mph H 60%29.94 inHg

5:00 AM

Mostly cloudy night

78° 💧 None 💨 7 mph H 61%29.94 inHg

6:00 AM

Mostly cloudy night

77° 💧 None 💨 7 mph H 61%29.94 inHg

7:00 AM

Partly cloudy night

77° 💧 None 💨 7 mph H 61%29.94 inHg

8:00 AM

Partly cloudy

77° 💧 None 💨 7 mph H 62%29.94 inHg

9:00 AM

Sunny

82° 💧 None 💨 7 mph H 57%29.97 inHg

10:00 AM

Sunny

87° 💧 None 💨 9 mph H 47%29.97 inHg

11:00 AM

Sunny

92° 💧 None 💨 8 mph H 41%29.97 inHg

12:00 PM

Sunny

96° 💧 None 💨 8 mph H 36%29.97 inHg

1:00 PM

Sunny

99° 💧 None 💨 8 mph H 32%29.94 inHg

2:00 PM

Sunny

101° 💧 None 💨 8 mph H 29%29.94 inHg

3:00 PM

Sunny

102° 💧 None 💨 8 mph H 27%29.91 inHg

4:00 PM

Partly cloudy

101° 💧 None 💨 7 mph H 27%29.88 inHg

5:00 PM

Partly cloudy

101° 💧 None 💨 14 mph H 27%29.88 inHg

6:00 PM

Partly cloudy

92° 💧 None 💨 16 mph H 41%29.88 inHg

7:00 PM

Partly cloudy

91° 💧 None 💨 11 mph H 40%29.88 inHg

8:00 PM

Partly cloudy

89° 💧 None 💨 6 mph H 41%29.88 inHg

9:00 PM

Partly cloudy night

88° 💧 None 💨 6 mph H 42%29.88 inHg

10:00 PM

Partly cloudy night

85° 💧 None 💨 5 mph H 47%29.91 inHg

11:00 PM

Partly cloudy night

85° 💧 None 💨 6 mph H 48%29.91 inHg

Friday

12:00 AM

Mostly cloudy night

85° 💧 None 💨 7 mph H 47%29.91 inHg

1:00 AM

Mostly cloudy night

85° 💧 None 💨 7 mph H 49%29.91 inHg

2:00 AM

Mostly cloudy night

84° 💧 None 💨 8 mph H 49%29.91 inHg

3:00 AM

Partly cloudy night

81° 💧 None 💨 7 mph H 54%29.91 inHg

4:00 AM

Mostly clear night

79° 💧 None 💨 7 mph H 56%29.91 inHg

5:00 AM

Clear night

79° 💧 None 💨 6 mph H 58%29.94 inHg

6:00 AM

Clear night

78° 💧 None 💨 7 mph H 59%29.94 inHg

7:00 AM

Clear night

77° 💧 None 💨 6 mph H 61%29.94 inHg

8:00 AM

Sunny

78° 💧 None 💨 5 mph H 62%29.94 inHg

9:00 AM

Sunny

82° 💧 None 💨 6 mph H 56%29.97 inHg

10:00 AM

Sunny

87° 💧 None 💨 6 mph H 48%29.97 inHg

11:00 AM

Sunny

91° 💧 None 💨 7 mph H 42%29.97 inHg

12:00 PM

Sunny

95° 💧 None 💨 7 mph H 38%29.97 inHg

1:00 PM

Sunny

98° 💧 None 💨 7 mph H 34%29.97 inHg

2:00 PM

Sunny

99° 💧 None 💨 7 mph H 32%29.94 inHg

3:00 PM

Sunny

101° 💧 None 💨 6 mph H 30%29.91 inHg

4:00 PM

Mostly sunny

102° 💧 None 💨 6 mph H 28%29.88 inHg

5:00 PM

Partly cloudy

100° 💧 None 💨 7 mph H 31%29.88 inHg

6:00 PM

Partly cloudy

98° 💧 None 💨 4 mph H 34%29.85 inHg

7:00 PM

Partly cloudy

96° 💧 None 💨 6 mph H 40%29.85 inHg

8:00 PM

Mostly cloudy

87° 💧 None 💨 3 mph H 53%29.88 inHg

9:00 PM

Mostly cloudy night

86° 💧 None 💨 5 mph H 53%29.88 inHg

10:00 PM

Light rain

84° 💧 0.01 in 💨 5 mph H 59%29.91 inHg

11:00 PM

Overcast night

84° 💧 None 💨 1 mph H 61%29.91 inHg

In Sullivan and, more broadly, across the state of Indiana: This evening will feature mostly sunny skies with a few clouds, maintaining the warm temperatures that have been felt throughout the day. Temperatures are expected to stay in the mid to upper 80s, with the warmest readings approaching 88 degrees. Winds will be light, coming from the southwest at around 8 mph, with occasional gusts reaching up to 27 mph. No precipitation is expected during the evening hours, so dry conditions will persist. The weather remains quite warm and relatively calm, making for a typical summer evening. Residents can expect clear skies and comfortable conditions despite the continued warmth.

15-Day Weather Outlook for Sullivan

TomorrowTomorrow

Partly cloudy 100°/73° 💧 None 💨 10 mph

Wednesday, Sep 2Wed Sep 2

Sunny 102°/76° 💧 None 💨 11 mph

Thursday, Sep 3Thu Sep 3

Sunny 102°/77° 💧 None 💨 16 mph

Friday, Sep 4Fri Sep 4

Light rain 100°/78° 💧 0.02 in 💨 8 mph

Saturday, Sep 5Sat Sep 5

Light rain 97°/74° 💧 0.17 in 💨 11 mph

Sunday, Sep 6Sun Sep 6

Light rain 85°/63° 💧 0.01 in 💨 15 mph

Monday, Sep 7Mon Sep 7

Overcast 90°/58° 💧 None 💨 8 mph

Tuesday, Sep 8Tue Sep 8

Overcast 92°/71° 💧 None 💨 13 mph

Wednesday, Sep 9Wed Sep 9

Light rain 98°/70° 💧 0.07 in 💨 19 mph

Thursday, Sep 10Thu Sep 10

Light rain 94°/71° 💧 0.09 in 💨 15 mph

Friday, Sep 11Fri Sep 11

Very heavy rain 72°/65° 💧 3.36 in 💨 15 mph

Saturday, Sep 12Sat Sep 12

Heavy rain 78°/69° 💧 1.44 in 💨 15 mph

Sunday, Sep 13Sun Sep 13

Light rain 82°/70° 💧 0.16 in 💨 12 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 88°/75° 💧 None 💨 18 mph

Tuesday, Sep 15Tue Sep 15

Heavy rain 88°/70° 💧 0.71 in 💨 17 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Sullivan

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Sullivan

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 12:00 AM

PM2.5 Fine particles Good 6,9µg/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 7,5µg/m³

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

O₃ Ozone Fair 66,3µg/m³

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

NO₂ Nitrogen dioxide Good 3,9µg/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 Sullivan

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 8,3Very high —Unavailable

Tomorrow UV 8,4Very high 😐Moderate

Wednesday UV 8,3Very high 🙂Fair

Thursday UV 8,8Very high 😐Moderate

Friday UV 8,3Very high 🙂Fair

Saturday UV 9,0Very high —Unavailable

Sunday UV 7,0High —Unavailable

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

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Acceptable air quality

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

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Sullivan

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 3.89 Population: 4,252

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Forecast data for Sullivan were last refreshed today at 11:01 PM. The current forecast period extends through 02/09/2026 at 9:00 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.