Saint Peter Hourly Weather Forecast
Next 48 Hours
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Starting off Sunny skies, turning light rain shower later in the day. Extreme heat expected, up to 99°. Breezy wind, shifting from SSE to S at 10.8 mph, as humidity ranges 30% to 98%, and an avg barometric pressure of 30.08 inHg.
Temp
Feel
Humidity
Wind
Pressure
Dew Point
UV
Precip.
7 AM
70°F
69°F
76%
8.3 SSE
30.06
62°F
0
11%
8 AM
74°F
72°F
69%
10.1 SSE
30.07
63°F
0.5
5%
9 AM
79°F
78°F
61%
11.9 SSW
30.08
64°F
1.5
3%
10 AM
85°F
87°F
52%
12.5 SSW
30.08
65°F
3.3
2%
11 AM
89°F
92°F
45%
13.2 SSW
30.08
66°F
5.3
1%
12 PM
93°F
92°F
40%
12.8 SSW
30.06
65°F
6.8
1%
1 PM
96°F
94°F
36%
12.5 SW
30.04
65°F
7.4
1%
2 PM
98°F
96°F
33%
11.4 SW
30.03
63°F
6.7
0%
3 PM
99°F
97°F
31%
10.5 SSW
30.01
62°F
5.1
1%
4 PM
99°F
97°F
30%
10.7 SSW
30
62°F
3
4%
5 PM
97°F
95°F
31%
10.1 S
29.99
62°F
1.3
4%
6 PM
84°F
87°F
59%
14.8 NNW
30.04
68°F
0.3
22%
Rain est. 0.01in
Rain est. 0.01in
7 PM
75°F
75°F
89%
15.7 N
30.06
71°F
0
43%
Rain est. 0.01in
Rain est. 0.01in
8 PM
73°F
76°F
95%
10.7 N
30.15
72°F
0
82%
Rain est. 0.08in
Rain est. 0.08in
9 PM
72°F
76°F
96%
7.2 NNW
30.19
71°F
0
84%
Rain est. 0.09in
Rain est. 0.09in
10 PM
74°F
81°F
96%
4.3 NNE
30.18
73°F
0
83%
Rain est. 0.09in
Rain est. 0.09in
11 PM
74°F
79°F
98%
6.3 S
30.19
73°F
0
92%
Rain est. 0.24in
Rain est. 0.24in
Wed, Sep 16th 2026
Sunny skies early, becoming light rain shower later. Warming trend from 72°F to 91°. Light winds, shifting from E to SW at 4.9 mph, with humidity levels between 47% to 97%, and an avg barometric pressure of 30.18 inHg.
Temp
Feel
Humidity
Wind
Pressure
Dew Point
UV
Precip.
12 AM
75°F
77°F
95%
12.3 E
30.14
73°F
0
83%
Rain est. 0.09in
Rain est. 0.09in
1 AM
75°F
78°F
94%
9.2 SSE
30.14
73°F
0
81%
Rain est. 0.07in
Rain est. 0.07in
2 AM
73°F
76°F
96%
10.5 SE
30.14
72°F
0
33%
3 AM
74°F
78°F
94%
8.3 SE
30.14
72°F
0
21%
4 AM
73°F
79°F
95%
4.7 SSE
30.15
72°F
0
50%
Rain est. 0.01in
Rain est. 0.01in
5 AM
72°F
77°F
96%
5.8 NNW
30.19
71°F
0
35%
6 AM
72°F
77°F
97%
5.4 NNE
30.19
71°F
0
45%
Rain est. 0.01in
Rain est. 0.01in
7 AM
72°F
77°F
97%
5.6 NE
30.21
71°F
0
38%
8 AM
72°F
77°F
93%
4.3 NE
30.23
70°F
0.4
59%
Rain est. 0.02in
Rain est. 0.02in
9 AM
74°F
79°F
88%
4.9 ENE
30.24
70°F
1.2
65%
Rain est. 0.03in
Rain est. 0.03in
10 AM
77°F
82°F
81%
5.4 ENE
30.25
71°F
3.2
22%
11 AM
81°F
84°F
71%
4.5 NE
30.25
71°F
5.1
36%
Rain est. 0.01in
Rain est. 0.01in
12 PM
85°F
90°F
62%
2.5 ENE
30.24
71°F
6.6
4%
1 PM
88°F
94°F
57%
1.6 ESE
30.22
71°F
7.1
3%
2 PM
90°F
96°F
52%
1.3 SSE
30.2
70°F
6.4
2%
3 PM
91°F
97°F
50%
2.2 SW
30.17
70°F
4.8
2%
4 PM
91°F
96°F
48%
2.7 SW
30.15
69°F
2.9
1%
5 PM
91°F
95°F
47%
2.5 SW
30.14
68°F
1.3
2%
6 PM
90°F
97°F
56%
0.4 NE
30.14
72°F
0.3
3%
7 PM
87°F
93°F
60%
3.1 NE
30.16
71°F
0
4%
8 PM
84°F
89°F
65%
5.1 ENE
30.15
71°F
0
4%
9 PM
83°F
87°F
69%
3.4 ESE
30.18
71°F
0
15%
10 PM
82°F
86°F
71%
4.5 SSE
30.18
71°F
0
21%
11 PM
78°F
83°F
84%
6.3 SW
30.19
73°F
0
48%
Rain est. 0.01in
Rain est. 0.01in
Thu, Sep 17th 2026
Clear conditions giving way to Overcast conditions by evening. Temps range from 76° to 79°. Light winds, shifting from SE to WNW at 3.8 mph, with humidity ranging 80% to 86%, and an avg barometric pressure of 30.16 inHg.
Temp
Feel
Humidity
Wind
Pressure
Dew Point
UV
Precip.
12 AM
79°F
84°F
80%
4.3 SE
30.16
73°F
0
23%
1 AM
79°F
84°F
80%
4.7 SE
30.16
72°F
0
18%
2 AM
78°F
84°F
82%
3.6 SSW
30.17
72°F
0
25%
3 AM
78°F
84°F
83%
4 W
30.16
72°F
0
13%
4 AM
77°F
84°F
84%
3.1 WSW
30.15
72°F
0
18%
5 AM
76°F
83°F
86%
3.8 W
30.16
72°F
0
13%
6 AM
76°F
83°F
86%
2.9 WNW
30.16
72°F
0
12%
This hour by hour weather report is valid for ZIP code 62880, accurately covering the area of Saint Peter, IL.
Currently
|
69°F |
30.05 inHg.
Barometer 75%
Humidity SSE 8.3mph Wind |
| Partly Cloudy | ||
National Outlook
Rain and Storms in the West, Heat Persists in the South - 09-14 to 09-16
Mon Sep 14th 2026, 5:26am PDT
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