Weather in O'Fallon Illinois, United States. 15 days forecast
Current weather conditions
Sky / Temperature 77°F | Wind 23 > 29 mi/h | Atmospheric pressure1000 hPa | Humidity69% | Wind chill73°F | Dewpoint66°F |
Updated: 4/02/2025 at 11:55 (Local time)
Weather Station: Scott Air Force Base / Belleville
°F°C
mi/hkm/h
Weather forecast 15 days
15-day weather forecast with temperatures, sky state, wind speed and direction, cloud percentage, probability of precipitation, accumulated precipitation, humidity, atmospheric pressure, sunrise and sunset times, moonrise and moonset times, and daily moon phase. Weather forecast for O'Fallon.
Today, april 2
77°F54°F
6:4619:22
09:13----
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 12:00 | 72°F | 27 mi/h | 1000 hPa | 79% | 100% | 0% | 0 mm |
| 14:00 | 73°F | 25 mi/h | 1000 hPa | 77% | 100% | 57% | 0 mm |
| 15:00 | 72°F | 26 mi/h | 999 hPa | 76% | 100% | 77% | 0 mm |
| 16:00 | 70°F | 25 mi/h | 1000 hPa | 81% | 100% | 73% | 0 mm |
| 17:00 | 70°F | 22 mi/h | 1000 hPa | 78% | 100% | 73% | 0 mm |
| 18:00 | 70°F | 19 mi/h | 1000 hPa | 79% | 100% | 63% | 2 mm |
| 21:00 | 66°F | 14 mi/h | 1003 hPa | 78% | 97% | 27% | 0.2 mm |
Tomorrow, april 3
62°F52°F
6:4519:23
10:0801:09
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 61°F | 10 mi/h | 1006 hPa | 80% | 100% | 11% | 0.2 mm |
| 03:00 | 57°F |  7 mi/h | 1011 hPa | 83% | 31% | 0% | 0 mm |
| 06:00 | 54°F |  4 mi/h | 1013 hPa | 83% | 30% | 0% | 0 mm |
| 09:00 | 57°F |  4 mi/h | 1015 hPa | 73% | 65% | 13% | 0 mm |
| 12:00 | 61°F | 8 mi/h | 1018 hPa | 63% | 89% | 36% | 0 mm |
| 15:00 | 61°F | 8 mi/h | 1018 hPa | 62% | 93% | 45% | 0.4 mm |
| 18:00 | 59°F | 8 mi/h | 1017 hPa | 69% | 93% | 65% | 0.4 mm |
| 21:00 | 55°F | 10 mi/h | 1019 hPa | 78% | 100% | 70% | 0.4 mm |
Friday, april 4
62°F51°F
6:4319:24
11:1102:12
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 54°F | 8 mi/h | 1019 hPa | 82% | 100% | 70% | 0.4 mm |
| 03:00 | 54°F | 7 mi/h | 1019 hPa | 84% | 100% | 44% | 0 mm |
| 06:00 | 52°F | 7 mi/h | 1020 hPa | 86% | 100% | 44% | 0 mm |
| 09:00 | 54°F | 8 mi/h | 1021 hPa | 84% | 100% | 60% | 1 mm |
| 12:00 | 57°F | 9 mi/h | 1020 hPa | 81% | 100% | 60% | 1 mm |
| 15:00 | 59°F |  9 mi/h | 1017 hPa | 81% | 100% | 95% | 2.9 mm |
| 18:00 | 61°F | 10 mi/h | 1014 hPa | 79% | 100% | 95% | 2.9 mm |
| 21:00 | 63°F | 10 mi/h | 1012 hPa | 82% | 100% | 99% | 8.2 mm |
Saturday, april 5
62°F50°F
6:4219:25
12:1803:04
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 61°F | 10 mi/h | 1010 hPa | 87% | 100% | 99% | 8.2 mm |
| 03:00 | 61°F |  10 mi/h | 1009 hPa | 90% | 100% | 99% | 3.8 mm |
| 06:00 | 57°F | 10 mi/h | 1010 hPa | 92% | 100% | 99% | 3.8 mm |
| 09:00 | 55°F | 11 mi/h | 1013 hPa | 90% | 100% | 99% | 3.5 mm |
| 12:00 | 55°F | 11 mi/h | 1015 hPa | 87% | 100% | 99% | 3.2 mm |
| 15:00 | 54°F |  12 mi/h | 1013 hPa | 83% | 100% | 99% | 3.6 mm |
| 18:00 | 54°F | 12 mi/h | 1011 hPa | 79% | 100% | 99% | 3.8 mm |
| 21:00 | 52°F | 12 mi/h | 1015 hPa | 79% | 100% | 96% | 3.1 mm |
Sunday, april 6
51°F44°F
6:4019:26
13:2703:45
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 48°F | 11 mi/h | 1014 hPa | 82% | 100% | 96% | 1.8 mm |
| 03:00 | 46°F | 11 mi/h | 1014 hPa | 82% | 94% | 96% | 1.1 mm |
| 06:00 | 45°F | 11 mi/h | 1012 hPa | 80% | 86% | 96% | 0.7 mm |
| 09:00 | 45°F | 12 mi/h | 1015 hPa | 75% | 77% | 76% | 0.3 mm |
| 12:00 | 48°F | 13 mi/h | 1015 hPa | 68% | 69% | 76% | 0.3 mm |
| 15:00 | 48°F | 11 mi/h | 1014 hPa | 61% | 57% | 76% | 0.3 mm |
| 18:00 | 50°F | 9 mi/h | 1014 hPa | 54% | 45% | 0% | 0 mm |
| 21:00 | 48°F | 7 mi/h | 1016 hPa | 58% | 34% | 0% | 0 mm |
Monday, april 7
51°F36°F
6:3919:27
14:3304:17
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 43°F | 6 mi/h | 1016 hPa | 67% | 23% | 0% | 0 mm |
| 03:00 | 39°F | 6 mi/h | 1016 hPa | 71% | 15% | 0% | 0 mm |
| 06:00 | 37°F | 6 mi/h | 1015 hPa | 73% | 10% | 0% | 0 mm |
| 09:00 | 41°F | 8 mi/h | 1015 hPa | 64% | 11% | 0% | 0 mm |
| 12:00 | 48°F | 11 mi/h | 1014 hPa | 48% | 17% | 0% | 0 mm |
| 15:00 | 50°F | 10 mi/h | 1011 hPa | 44% | 19% | 0% | 0 mm |
| 18:00 | 50°F | 9 mi/h | 1011 hPa | 46% | 20% | 0% | 0 mm |
| 21:00 | 46°F | 7 mi/h | 1015 hPa | 53% | 15% | 0% | 0 mm |
Tuesday, april 8
53°F33°F
6:3719:28
15:3604:43
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 39°F | 5 mi/h | 1018 hPa | 63% | 8% | 0% | 0 mm |
| 03:00 | 37°F | 4 mi/h | 1020 hPa | 69% | 6% | 0% | 0 mm |
| 06:00 | 34°F | 4 mi/h | 1022 hPa | 74% | 7% | 0% | 0 mm |
| 09:00 | 39°F | 4 mi/h | 1024 hPa | 65% | 7% | 0% | 0 mm |
| 12:00 | 48°F | 6 mi/h | 1024 hPa | 49% | 6% | 0% | 0 mm |
| 15:00 | 52°F | 6 mi/h | 1023 hPa | 46% | 7% | 0% | 0 mm |
| 18:00 | 54°F | 5 mi/h | 1022 hPa | 49% | 9% | 0% | 0 mm |
| 21:00 | 45°F | 4 mi/h | 1022 hPa | 57% | 27% | 0% | 0 mm |
Wednesday, april 9
60°F38°F
6:3619:29
16:3705:07
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 41°F | 5 mi/h | 1023 hPa | 69% | 34% | 0% | 0 mm |
| 03:00 | 39°F | 5 mi/h | 1022 hPa | 77% | 39% | 0% | 0 mm |
| 06:00 | 37°F | 6 mi/h | 1022 hPa | 81% | 38% | 0% | 0 mm |
| 09:00 | 45°F |  7 mi/h | 1023 hPa | 70% | 33% | 0% | 0 mm |
| 12:00 | 54°F | 10 mi/h | 1024 hPa | 57% | 33% | 0% | 0 mm |
| 15:00 | 59°F | 10 mi/h | 1025 hPa | 50% | 32% | 0% | 0 mm |
| 18:00 | 59°F | 8 mi/h | 1026 hPa | 53% | 37% | 0% | 0 mm |
| 21:00 | 54°F | 7 mi/h | 1028 hPa | 62% | 46% | 0% | 0 mm |
Thursday, april 10
65°F47°F
6:3419:30
17:3705:28
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 50°F | 7 mi/h | 1029 hPa | 71% | 54% | 0% | 0 mm |
| 03:00 | 48°F | 7 mi/h | 1029 hPa | 75% | 51% | 17% | 0.1 mm |
| 06:00 | 48°F | 7 mi/h | 1030 hPa | 80% | 43% | 0% | 0 mm |
| 09:00 | 54°F | 7 mi/h | 1032 hPa | 70% | 36% | 0% | 0 mm |
| 12:00 | 63°F | 10 mi/h | 1031 hPa | 57% | 30% | 0% | 0 mm |
| 15:00 | 64°F | 9 mi/h | 1029 hPa | 53% | 31% | 0% | 0 mm |
| 18:00 | 63°F | 7 mi/h | 1029 hPa | 53% | 35% | 0% | 0 mm |
| 21:00 | 59°F | 7 mi/h | 1029 hPa | 59% | 32% | 0% | 0 mm |
Friday, april 11
64°F47°F
6:3319:30
18:3505:48
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 54°F | 6 mi/h | 1029 hPa | 69% | 26% | 0% | 0 mm |
| 03:00 | 50°F | 6 mi/h | 1029 hPa | 74% | 22% | 0% | 0 mm |
| 06:00 | 48°F | 7 mi/h | 1029 hPa | 77% | 20% | 0% | 0 mm |
| 09:00 | 54°F | 8 mi/h | 1029 hPa | 66% | 20% | 0% | 0 mm |
| 12:00 | 61°F | 10 mi/h | 1028 hPa | 51% | 21% | 0% | 0 mm |
| 15:00 | 64°F | 9 mi/h | 1026 hPa | 47% | 22% | 0% | 0 mm |
| 18:00 | 63°F | 7 mi/h | 1024 hPa | 47% | 21% | 0% | 0 mm |
| 21:00 | 59°F | 4 mi/h | 1025 hPa | 55% | 20% | 0% | 0 mm |
Saturday, april 12
67°F47°F
6:3119:31
19:3406:08
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 54°F | 4 mi/h | 1025 hPa | 67% | 18% | 0% | 0 mm |
| 03:00 | 50°F | 6 mi/h | 1025 hPa | 74% | 16% | 0% | 0 mm |
| 06:00 | 48°F | 6 mi/h | 1025 hPa | 77% | 16% | 0% | 0 mm |
| 09:00 | 54°F | 7 mi/h | 1025 hPa | 66% | 15% | 0% | 0 mm |
| 12:00 | 64°F | 9 mi/h | 1024 hPa | 51% | 15% | 0% | 0 mm |
| 15:00 | 66°F | 9 mi/h | 1022 hPa | 48% | 16% | 0% | 0 mm |
| 18:00 | 66°F | 7 mi/h | 1021 hPa | 51% | 19% | 0% | 0 mm |
| 21:00 | 63°F | 7 mi/h | 1021 hPa | 57% | 21% | 0% | 0 mm |
Sunday, april 13
76°F50°F
6:3019:32
20:3406:30
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 55°F | 7 mi/h | 1021 hPa | 67% | 23% | 0% | 0 mm |
| 03:00 | 52°F | 7 mi/h | 1021 hPa | 83% | 8% | 0% | 0 mm |
| 06:00 | 50°F | 7 mi/h | 1021 hPa | 88% | 0% | 0% | 0 mm |
| 09:00 | 59°F | 10 mi/h | 1021 hPa | 77% | 0% | 0% | 0 mm |
| 12:00 | 72°F | 14 mi/h | 1019 hPa | 62% | 0% | 0% | 0 mm |
| 15:00 | 75°F | 15 mi/h | 1017 hPa | 57% | 0% | 0% | 0 mm |
| 18:00 | 72°F | 15 mi/h | 1015 hPa | 66% | 0% | 0% | 0 mm |
| 21:00 | 64°F | 16 mi/h | 1015 hPa | 77% | 0% | 0% | 0 mm |
Monday, april 14
73°F49°F
6:2819:33
21:3606:54
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 61°F | 14 mi/h | 1015 hPa | 78% | 1% | 0% | 0 mm |
| 03:00 | 59°F | 12 mi/h | 1014 hPa | 78% | 67% | 0% | 0 mm |
| 06:00 | 57°F | 11 mi/h | 1014 hPa | 83% | 100% | 0% | 0 mm |
| 09:00 | 64°F | 14 mi/h | 1014 hPa | 73% | 59% | 0% | 0 mm |
| 12:00 | 72°F | 16 mi/h | 1014 hPa | 61% | 66% | 0% | 0 mm |
| 15:00 | 63°F | 14 mi/h | 1016 hPa | 65% | 93% | 0% | 0 mm |
| 18:00 | 55°F | 11 mi/h | 1019 hPa | 64% | 100% | 0% | 0 mm |
| 21:00 | 52°F | 7 mi/h | 1021 hPa | 69% | 46% | 0% | 0 mm |
Tuesday, april 15
63°F43°F
6:2719:34
22:3807:23
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 48°F | 7 mi/h | 1023 hPa | 69% | 6% | 0% | 0 mm |
| 03:00 | 45°F | 6 mi/h | 1024 hPa | 65% | 0% | 0% | 0 mm |
| 06:00 | 43°F | 5 mi/h | 1025 hPa | 66% | 0% | 0% | 0 mm |
| 09:00 | 52°F | 6 mi/h | 1026 hPa | 56% | 0% | 0% | 0 mm |
| 12:00 | 59°F | 7 mi/h | 1025 hPa | 40% | 0% | 0% | 0 mm |
| 15:00 | 63°F | 9 mi/h | 1023 hPa | 36% | 1% | 0% | 0 mm |
| 18:00 | 59°F | 7 mi/h | 1022 hPa | 50% | 1% | 0% | 0 mm |
| 21:00 | 54°F | 5 mi/h | 1023 hPa | 55% | 1% | 0% | 0 mm |
Wednesday, april 16
68°F46°F
6:2519:35
23:3907:57
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 50°F | 5 mi/h | 1024 hPa | 60% | 0% | 0% | 0 mm |
| 03:00 | 48°F | 4 mi/h | 1025 hPa | 68% | 0% | 0% | 0 mm |
| 06:00 | 46°F | 1 mi/h | 1025 hPa | 72% | 1% | 0% | 0 mm |
| 09:00 | 54°F | 4 mi/h | 1026 hPa | 64% | 1% | 0% | 0 mm |
| 12:00 | 63°F | 7 mi/h | 1025 hPa | 51% | 2% | 0% | 0 mm |
| 15:00 | 68°F | 9 mi/h | 1023 hPa | 48% | 4% | 0% | 0 mm |
| 18:00 | 63°F | 9 mi/h | 1022 hPa | 62% | 61% | 0% | 0 mm |
| 21:00 | 59°F | 8 mi/h | 1022 hPa | 70% | 87% | 0% | 0 mm |
