What is the weather in St. Peter right now?

Current weather in St. Peter is light rain.

Where can I find the hourly weather forecast for St. Peter?

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

Is the weather forecast for St. Peter updated regularly?

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

Now · 9:07 AM

St. Peter Weather & Hourly Forecast

United States · Illinois · 62880

76°F

Light rain

Feels like: 84°F

💧 Humidity 95% 🌡 Pressure 29.94 inHg 💨 Wind 3 mph 👁 Visibility 3.5 mi ☁ Clouds 62% ☀️ UV index 0.6 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for St. Peter

Today

10:00 AM

Partly cloudy

79° 💧 0.00 in 💨 3 mph H 87%29.97 inHg

1:00 PM

Sunny

91° 💧 0.00 in 💨 4 mph H 55%29.91 inHg

4:00 PM

Partly cloudy

93° 💧 0.00 in 💨 9 mph H 46%29.85 inHg

7:00 PM

Sunny

86° 💧 None 💨 4 mph H 67%29.85 inHg

10:00 PM

Clear night

81° 💧 None 💨 5 mph H 77%29.91 inHg

Tomorrow

1:00 AM

Clear night

78° 💧 None 💨 8 mph H 86%29.91 inHg

4:00 AM

Clear night

74° 💧 None 💨 8 mph H 92%29.94 inHg

7:00 AM

Overcast

72° 💧 0.00 in 💨 8 mph H 96%30.00 inHg

10:00 AM

Mostly sunny

77° 💧 0.00 in 💨 9 mph H 78%30.03 inHg

1:00 PM

Mostly sunny

84° 💧 None 💨 9 mph H 51%30.00 inHg

4:00 PM

Partly cloudy

86° 💧 None 💨 7 mph H 44%29.94 inHg

7:00 PM

Sunny

80° 💧 None 💨 9 mph H 50%29.97 inHg

10:00 PM

Clear night

73° 💧 None 💨 10 mph H 53%30.03 inHg

Monday

1:00 AM

Partly cloudy night

68° 💧 None 💨 8 mph H 67%30.06 inHg

4:00 AM

Mostly clear night

66° 💧 None 💨 7 mph H 78%30.06 inHg

7:00 AM

Sunny

64° 💧 None 💨 7 mph H 83%30.12 inHg

Today

10:00 AM

Partly cloudy

79° 💧 0.00 in 💨 3 mph H 87%29.97 inHg

11:00 AM

Sunny

86° 💧 None 💨 3 mph H 69%29.94 inHg

12:00 PM

Sunny

89° 💧 None 💨 5 mph H 59%29.94 inHg

1:00 PM

Sunny

91° 💧 None 💨 4 mph H 55%29.91 inHg

2:00 PM

Mostly sunny

92° 💧 None 💨 5 mph H 53%29.91 inHg

3:00 PM

Strong thunderstorm

94° 💧 0.00 in 💨 6 mph H 49%29.88 inHg

4:00 PM

Partly cloudy

93° 💧 0.00 in 💨 9 mph H 46%29.85 inHg

5:00 PM

Mostly sunny

91° 💧 None 💨 8 mph H 49%29.85 inHg

6:00 PM

Mostly sunny

90° 💧 None 💨 5 mph H 58%29.85 inHg

7:00 PM

Sunny

86° 💧 None 💨 4 mph H 67%29.85 inHg

8:00 PM

Clear night

83° 💧 None 💨 5 mph H 70%29.85 inHg

9:00 PM

Clear night

82° 💧 None 💨 5 mph H 73%29.88 inHg

10:00 PM

Clear night

81° 💧 None 💨 5 mph H 77%29.91 inHg

11:00 PM

Clear night

81° 💧 None 💨 8 mph H 79%29.91 inHg

Tomorrow

12:00 AM

Clear night

80° 💧 None 💨 9 mph H 81%29.91 inHg

1:00 AM

Clear night

78° 💧 None 💨 8 mph H 86%29.91 inHg

2:00 AM

Clear night

77° 💧 None 💨 8 mph H 87%29.94 inHg

3:00 AM

Clear night

75° 💧 None 💨 8 mph H 89%29.94 inHg

4:00 AM

Clear night

74° 💧 None 💨 8 mph H 92%29.94 inHg

5:00 AM

Clear night

72° 💧 None 💨 7 mph H 95%29.94 inHg

6:00 AM

Overcast night

71° 💧 None 💨 7 mph H 98%29.97 inHg

7:00 AM

Overcast

72° 💧 None 💨 8 mph H 96%30.00 inHg

8:00 AM

Overcast

74° 💧 0.00 in 💨 10 mph H 90%30.00 inHg

9:00 AM

Overcast

75° 💧 0.00 in 💨 9 mph H 85%30.03 inHg

10:00 AM

Mostly sunny

77° 💧 0.00 in 💨 9 mph H 78%30.03 inHg

11:00 AM

Sunny

80° 💧 None 💨 9 mph H 66%30.03 inHg

12:00 PM

Mostly sunny

83° 💧 None 💨 9 mph H 57%30.00 inHg

1:00 PM

Mostly sunny

84° 💧 None 💨 9 mph H 51%30.00 inHg

2:00 PM

Partly cloudy

85° 💧 None 💨 8 mph H 47%29.97 inHg

3:00 PM

Mostly sunny

86° 💧 None 💨 8 mph H 45%29.97 inHg

4:00 PM

Partly cloudy

86° 💧 None 💨 7 mph H 44%29.94 inHg

5:00 PM

Mostly cloudy

85° 💧 None 💨 8 mph H 45%29.94 inHg

6:00 PM

Sunny

83° 💧 None 💨 9 mph H 49%29.97 inHg

7:00 PM

Sunny

80° 💧 None 💨 9 mph H 50%29.97 inHg

8:00 PM

Clear night

77° 💧 None 💨 10 mph H 50%30.00 inHg

9:00 PM

Clear night

75° 💧 None 💨 10 mph H 51%30.03 inHg

10:00 PM

Clear night

73° 💧 None 💨 10 mph H 53%30.03 inHg

11:00 PM

Clear night

71° 💧 None 💨 9 mph H 56%30.06 inHg

Monday

12:00 AM

Mostly cloudy night

69° 💧 None 💨 9 mph H 61%30.06 inHg

1:00 AM

Partly cloudy night

68° 💧 None 💨 8 mph H 67%30.06 inHg

2:00 AM

Overcast night

67° 💧 None 💨 7 mph H 71%30.06 inHg

3:00 AM

Partly cloudy night

67° 💧 None 💨 7 mph H 75%30.06 inHg

4:00 AM

Mostly clear night

66° 💧 None 💨 7 mph H 78%30.06 inHg

5:00 AM

Clear night

65° 💧 None 💨 7 mph H 80%30.09 inHg

6:00 AM

Clear night

64° 💧 None 💨 7 mph H 82%30.09 inHg

7:00 AM

Sunny

64° 💧 None 💨 7 mph H 83%30.12 inHg

8:00 AM

Sunny

67° 💧 None 💨 7 mph H 79%30.12 inHg

9:00 AM

Sunny

71° 💧 None 💨 7 mph H 73%30.12 inHg

10:00 AM

Sunny

74° 💧 None 💨 7 mph H 65%30.12 inHg

11:00 AM

Sunny

77° 💧 None 💨 7 mph H 54%30.12 inHg

12:00 PM

Sunny

80° 💧 None 💨 6 mph H 48%30.12 inHg

1:00 PM

Sunny

81° 💧 None 💨 6 mph H 44%30.09 inHg

2:00 PM

Sunny

82° 💧 None 💨 6 mph H 42%30.09 inHg

3:00 PM

Mostly sunny

83° 💧 None 💨 6 mph H 42%30.06 inHg

4:00 PM

Mostly sunny

83° 💧 None 💨 6 mph H 41%30.06 inHg

5:00 PM

Mostly sunny

83° 💧 None 💨 6 mph H 42%30.03 inHg

6:00 PM

Mostly sunny

82° 💧 None 💨 5 mph H 46%30.03 inHg

7:00 PM

Partly cloudy

78° 💧 None 💨 5 mph H 52%30.06 inHg

Tuesday

4:00 AM

Clear night

68° 💧 None 💨 4 mph H 75%30.06 inHg

7:00 AM

Sunny

67° 💧 None 💨 3 mph H 80%30.09 inHg

10:00 AM

Mostly sunny

81° 💧 None 💨 4 mph H 55%30.12 inHg

1:00 PM

Mostly sunny

90° 💧 None 💨 4 mph H 40%30.09 inHg

4:00 PM

Mostly cloudy

93° 💧 None 💨 4 mph H 35%30.03 inHg

7:00 PM

Mostly cloudy

87° 💧 None 💨 1 mph H 45%30.03 inHg

10:00 PM

Clear night

82° 💧 None 💨 8 mph H 56%30.06 inHg

Wednesday

1:00 AM

Mostly clear night

79° 💧 None 💨 7 mph H 61%30.06 inHg

4:00 AM

Partly cloudy night

78° 💧 None 💨 8 mph H 67%30.06 inHg

7:00 AM

Mostly sunny

77° 💧 None 💨 10 mph H 73%30.09 inHg

10:00 AM

Mostly sunny

87° 💧 None 💨 11 mph H 56%30.09 inHg

1:00 PM

Sunny

95° 💧 None 💨 10 mph H 38%30.06 inHg

4:00 PM

Sunny

97° 💧 None 💨 8 mph H 32%29.97 inHg

7:00 PM

Sunny

90° 💧 None 💨 2 mph H 44%29.94 inHg

10:00 PM

Mostly clear night

85° 💧 None 💨 6 mph H 46%29.97 inHg

Thursday

1:00 AM

Partly cloudy night

79° 💧 None 💨 2 mph H 63%29.97 inHg

4:00 AM

Overcast night

78° 💧 None 💨 7 mph H 67%29.97 inHg

7:00 AM

Light rain

74° 💧 None 💨 7 mph H 91%30.00 inHg

10:00 AM

Moderate rain

73° 💧 None 💨 4 mph H 96%30.03 inHg

1:00 PM

Light rain

78° 💧 None 💨 5 mph H 79%30.00 inHg

4:00 PM

Sunny

82° 💧 None 💨 7 mph H 57%29.91 inHg

7:00 PM

Sunny

78° 💧 None 💨 1 mph H 72%29.91 inHg

10:00 PM

Clear night

72° 💧 None 💨 4 mph H 85%29.94 inHg

Friday

1:00 AM

Clear night

69° 💧 None 💨 4 mph H 89%29.94 inHg

7:00 AM

Sunny

68° 💧 None 💨 5 mph H 74%29.97 inHg

1:00 PM

Sunny

63° 💧 None 💨 5 mph H 73%30.00 inHg

7:00 PM

Mostly sunny

82° 💧 None 💨 5 mph H 32%29.97 inHg

Saturday

1:00 AM

Mostly clear night

77° 💧 None 💨 4 mph H 44%29.88 inHg

7:00 AM

Sunny

69° 💧 None 💨 7 mph H 56%29.88 inHg

1:00 PM

Mostly sunny

67° 💧 None 💨 8 mph H 53%29.88 inHg

7:00 PM

Partly cloudy

90° 💧 None 💨 10 mph H 28%29.83 inHg

Sunday

1:00 AM

Mostly clear night

90° 💧 None 💨 13 mph H 38%29.68 inHg

7:00 AM

Overcast

74° 💧 None 💨 10 mph H 92%29.77 inHg

1:00 PM

Mostly cloudy

68° 💧 None 💨 11 mph H 76%29.91 inHg

7:00 PM

Overcast

74° 💧 None 💨 9 mph H 48%30.03 inHg

Monday

1:00 AM

Clear night

69° 💧 None 💨 6 mph H 48%30.03 inHg

7:00 AM

Sunny

60° 💧 None 💨 5 mph H 67%30.12 inHg

1:00 PM

Sunny

55° 💧 None 💨 3 mph H 79%30.21 inHg

7:00 PM

Sunny

76° 💧 None 💨 5 mph H 35%30.21 inHg

Tuesday

1:00 AM

Mostly clear night

71° 💧 None 💨 4 mph H 52%30.15 inHg

7:00 AM

Sunny

62° 💧 None 💨 2 mph H 70%30.24 inHg

1:00 PM

Sunny

58° 💧 None 💨 4 mph H 80%30.27 inHg

7:00 PM

Mostly sunny

80° 💧 None 💨 4 mph H 36%30.27 inHg

Wednesday

1:00 AM

Clear night

75° 💧 None 💨 2 mph H 51%30.21 inHg

7:00 AM

Sunny

64° 💧 None 💨 4 mph H 68%30.27 inHg

1:00 PM

Sunny

60° 💧 None 💨 4 mph H 74%30.30 inHg

7:00 PM

Partly cloudy

85° 💧 None 💨 6 mph H 29%30.30 inHg

Thursday

1:00 AM

Mostly clear night

77° 💧 None 💨 5 mph H 41%30.21 inHg

7:00 AM

Sunny

71° 💧 None 💨 6 mph H 48%30.18 inHg

1:00 PM

Partly cloudy

66° 💧 None 💨 8 mph H 49%30.18 inHg

7:00 PM

Overcast

89° 💧 None 💨 10 mph H 24%30.12 inHg

Friday

1:00 AM

Partly cloudy night

82° 💧 None 💨 6 mph H 39%30.00 inHg

7:00 AM

Sunny

75° 💧 None 💨 4 mph H 58%30.03 inHg

1:00 PM

Sunny

69° 💧 None 💨 8 mph H 84%30.09 inHg

7:00 PM

Clear night

84° 💧 None 💨 9 mph H 45%30.09 inHg

Saturday

1:00 AM

Clear night

78° 💧 None 💨 5 mph H 50%30.06 inHg

7:00 AM

Sunny

68° 💧 None 💨 8 mph H 65%30.09 inHg

1:00 PM

Sunny

60° 💧 None 💨 5 mph H 78%30.12 inHg

7:00 PM

Mostly cloudy night

79° 💧 None 💨 6 mph H 38%30.06 inHg

Sunday

1:00 AM

Clear night

73° 💧 None 💨 4 mph H 48%30.00 inHg

In St. Peter and, more broadly, across the state of Illinois: Clear skies are expected this morning, with temperatures rising quickly into the high 70s to low 80s. It will feel quite warm as the day progresses. In the afternoon, temperatures are forecasted to reach the upper 80s to low 90s, bringing hot conditions. Winds will be coming from the north at up to 14 mph, with gusts reaching 26 mph, providing some relief from the heat. No precipitation is expected throughout the day, so outdoor plans should be straightforward. It’s advisable to stay hydrated and protect yourself from the sun during peak heat hours. The moderate breeze will create some movement, but it may also cause occasional gusts to be stronger. Overall, a warm and sunny day is on the way.

15-Day Weather Outlook for St. Peter

TomorrowTomorrow

Overcast 86°/71° 💧 None 💨 10 mph

Monday, Sep 7Mon Sep 7

Mostly cloudy 83°/64° 💧 None 💨 10 mph

Tuesday, Sep 8Tue Sep 8

Partly cloudy 93°/67° 💧 0.01 in 💨 5 mph

Wednesday, Sep 9Wed Sep 9

Mostly cloudy 97°/77° 💧 0.00 in 💨 11 mph

Thursday, Sep 10Thu Sep 10

Moderate rain 90°/73° 💧 0.41 in 💨 7 mph

Friday, Sep 11Fri Sep 11

Sunny 78°/63° 💧 None 💨 5 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 82°/67° 💧 None 💨 8 mph

Sunday, Sep 13Sun Sep 13

Overcast 90°/68° 💧 0.35 in 💨 13 mph

Monday, Sep 14Mon Sep 14

Overcast 74°/55° 💧 None 💨 9 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 76°/58° 💧 0.00 in 💨 5 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 80°/60° 💧 None 💨 4 mph

Thursday, Sep 17Thu Sep 17

Partly cloudy 85°/66° 💧 None 💨 8 mph

Friday, Sep 18Fri Sep 18

Overcast 89°/69° 💧 None 💨 10 mph

Saturday, Sep 19Sat Sep 19

Sunny 84°/60° 💧 None 💨 9 mph

Sunday, Sep 20Sun Sep 20

Mostly cloudy 79°/73° 💧 None 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in St. Peter

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for St. Peter

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 10:00 AM

PM2.5 Fine particles Good 5,8µg/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 7,0µg/m³

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

O₃ Ozone Good 29,6µg/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 St. Peter

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 8,2Very high 😊Good

Tomorrow UV 7,9High 🙂Fair

Monday UV 7,9High 😐Moderate

Tuesday UV 7,9High 😐Moderate

Wednesday UV 9,0Very high 🙂Fair

Thursday UV 8,0Very high —Unavailable

Friday UV 9,0Very high —Unavailable

Hourly UV index today

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

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.

Good air quality

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

Comfortable temperature conditions

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

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 St. Peter

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · ST. PETER, ILLINOIS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 1:00 AM–2:00 AM.

98/100Best-hour score

BEST TIME TONIGHT 1:00 AM–2:00 AM Astronomical darkness: 8:52 PM–4:57 AM

☁ Cloud cover 2% Real hourly forecast for the best viewing hour.

☾ Moonlight 32% Last Quarter · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 43° high at the best hour.

✦ Estimated visible meteors 1–3/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min68%

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

AUG 28–SEP 5

AurigidsStart AUG 28 · Peak SEP 1 · End SEP 5 · ZHR 6 · 80% Moon at peak

ACTIVE NOW

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

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.

Wyoming US · Minnesota · 8,087 residents Cooperstown US · New York · 2,220 residents Haywards Heath GB · England · 40,185 residents Chatsworth (NSW) AU · New South Wales · 157 residents Pooler US · Georgia · 28,466 residents Redlands US · Colorado · 8,868 residents Lacadena No. 228 CA · Saskatchewan · 787 residents Derby US · Connecticut · 12,487 residents Farmington Hills US · Michigan · 83,515 residents Marshall US · Illinois · 4,040 residents Langwarrin AU · Victoria · 86,247 residents Hedley US · Texas · 318 residents Glenarden US · Maryland · 6,344 residents Alliance US · Ohio · 21,478 residents Pleasley GB · England · 705 residents Taroom AU · Queensland · 885 residents

Forecast data for St. Peter were last refreshed today at 8:36 AM. The current forecast period extends through 07/09/2026 at 7:00 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.