Weather in O'Fallon Missouri, United States. 15 days forecast
Current weather conditions
Sky / Temperature 63°F | Wind Calm | Atmospheric pressure1014 hPa | Humidity100% | Wind chill63°F | Dewpoint63°F |
Updated: 4/25/2025 at 08:32 (Local time)
Weather Station: St. Louis, Spirit Of St. Louis Airport
°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 25
79°F62°F
6:1619:47
04:5017:34
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 09:00 | 68°F |  3 mi/h | 1016 hPa | 83% | 67% | 41% | 0.3 mm |
| 12:00 | 75°F | 7 mi/h | 1017 hPa | 66% | 68% | 49% | 0.3 mm |
| 13:00 | 77°F | 7 mi/h | 1016 hPa | 61% | 71% | 44% | 0.3 mm |
| 15:00 | 79°F |  9 mi/h | 1016 hPa | 61% | 61% | 38% | 0.2 mm |
| 16:00 | 79°F | 10 mi/h | 1015 hPa | 60% | 56% | 36% | 0.2 mm |
| 18:00 | 77°F | 12 mi/h | 1016 hPa | 61% | 52% | 25% | 0.2 mm |
| 21:00 | 66°F |  12 mi/h | 1017 hPa | 74% | 61% | 18% | 0 mm |
Tomorrow, april 26
66°F52°F
6:1419:48
05:1718:51
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 61°F | 11 mi/h | 1019 hPa | 75% | 59% | 9% | 0 mm |
| 03:00 | 55°F | 9 mi/h | 1021 hPa | 81% | 63% | 2% | 0 mm |
| 06:00 | 52°F | 9 mi/h | 1023 hPa | 83% | 75% | 2% | 0 mm |
| 09:00 | 55°F |  7 mi/h | 1024 hPa | 73% | 59% | 1% | 0 mm |
| 12:00 | 61°F | 7 mi/h | 1025 hPa | 60% | 30% | 0% | 0 mm |
| 15:00 | 64°F | 7 mi/h | 1024 hPa | 51% | 24% | 0% | 0 mm |
| 18:00 | 64°F | 6 mi/h | 1023 hPa | 51% | 31% | 0% | 0 mm |
| 21:00 | 61°F | 5 mi/h | 1024 hPa | 59% | 46% | 0% | 0 mm |
Sunday, april 27
70°F51°F
6:1319:49
05:4720:11
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 55°F | 5 mi/h | 1024 hPa | 65% | 46% | 0% | 0 mm |
| 03:00 | 52°F |  6 mi/h | 1024 hPa | 69% | 43% | 0% | 0 mm |
| 06:00 | 52°F | 6 mi/h | 1024 hPa | 71% | 52% | 5% | 0 mm |
| 09:00 | 57°F | 6 mi/h | 1024 hPa | 65% | 54% | 14% | 0 mm |
| 12:00 | 64°F |  7 mi/h | 1022 hPa | 57% | 49% | 0% | 0 mm |
| 15:00 | 70°F | 7 mi/h | 1020 hPa | 54% | 44% | 0% | 0 mm |
| 18:00 | 70°F | 7 mi/h | 1018 hPa | 56% | 41% | 0% | 0 mm |
| 21:00 | 68°F | 7 mi/h | 1018 hPa | 64% | 37% | 0% | 0 mm |
Monday, april 28
82°F60°F
6:1219:50
06:2121:33
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 63°F | 6 mi/h | 1018 hPa | 74% | 32% | 0% | 0 mm |
| 03:00 | 61°F | 7 mi/h | 1017 hPa | 81% | 35% | 0% | 0 mm |
| 06:00 | 61°F | 7 mi/h | 1016 hPa | 85% | 40% | 0% | 0 mm |
| 09:00 | 68°F | 9 mi/h | 1015 hPa | 77% | 40% | 0% | 0 mm |
| 12:00 | 79°F | 12 mi/h | 1013 hPa | 64% | 38% | 0% | 0 mm |
| 15:00 | 82°F |  12 mi/h | 1011 hPa | 58% | 43% | 0% | 0 mm |
| 18:00 | 82°F | 11 mi/h | 1010 hPa | 57% | 52% | 7% | 0 mm |
| 21:00 | 79°F | 12 mi/h | 1010 hPa | 61% | 60% | 9% | 0 mm |
Tuesday, april 29
78°F66°F
6:1019:51
07:0422:51
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 75°F | 12 mi/h | 1010 hPa | 67% | 67% | 9% | 0 mm |
| 03:00 | 73°F |  12 mi/h | 1009 hPa | 73% | 74% | 9% | 0.2 mm |
| 06:00 | 70°F | 11 mi/h | 1010 hPa | 78% | 79% | 9% | 0.3 mm |
| 09:00 | 73°F | 11 mi/h | 1011 hPa | 75% | 77% | 33% | 0.3 mm |
| 12:00 | 77°F | 11 mi/h | 1011 hPa | 68% | 70% | 33% | 0.2 mm |
| 15:00 | 77°F | 10 mi/h | 1012 hPa | 66% | 70% | 33% | 0.3 mm |
| 18:00 | 73°F | 9 mi/h | 1012 hPa | 66% | 73% | 33% | 1.3 mm |
| 21:00 | 70°F | 7 mi/h | 1014 hPa | 70% | 74% | 60% | 0.5 mm |
Wednesday, april 30
69°F57°F
6:0919:52
07:57----
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 64°F | 6 mi/h | 1015 hPa | 75% | 74% | 60% | 0.5 mm |
| 03:00 | 61°F | 6 mi/h | 1015 hPa | 78% | 75% | 60% | 0.3 mm |
| 06:00 | 57°F | 6 mi/h | 1015 hPa | 80% | 76% | 60% | 0.3 mm |
| 09:00 | 61°F | 6 mi/h | 1016 hPa | 74% | 71% | 46% | 0.3 mm |
| 12:00 | 66°F | 7 mi/h | 1015 hPa | 63% | 64% | 46% | 0.1 mm |
| 15:00 | 68°F | 6 mi/h | 1013 hPa | 59% | 64% | 46% | 0.3 mm |
| 18:00 | 70°F | 5 mi/h | 1011 hPa | 59% | 68% | 46% | 0.5 mm |
| 21:00 | 66°F | 4 mi/h | 1011 hPa | 65% | 67% | 32% | 0.3 mm |
Thursday, may 1
72°F58°F
6:0819:53
08:5900:02
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 61°F | 4 mi/h | 1009 hPa | 75% | 65% | 32% | 0.3 mm |
| 03:00 | 59°F | 4 mi/h | 1006 hPa | 81% | 67% | 32% | 0.4 mm |
| 06:00 | 59°F | 4 mi/h | 1006 hPa | 85% | 73% | 32% | 0.3 mm |
| 09:00 | 63°F | 5 mi/h | 1008 hPa | 81% | 71% | 38% | 0.5 mm |
| 12:00 | 68°F | 6 mi/h | 1010 hPa | 73% | 64% | 38% | 0.3 mm |
| 15:00 | 72°F | 7 mi/h | 1011 hPa | 63% | 57% | 17% | 0.3 mm |
| 18:00 | 70°F | 7 mi/h | 1011 hPa | 62% | 56% | 17% | 0.8 mm |
| 21:00 | 66°F | 6 mi/h | 1013 hPa | 72% | 57% | 17% | 0.3 mm |
Friday, may 2
69°F56°F
6:0719:54
10:0701:00
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 61°F | 5 mi/h | 1013 hPa | 81% | 57% | 17% | 0.3 mm |
| 03:00 | 57°F | 5 mi/h | 1013 hPa | 86% | 53% | 17% | 0.3 mm |
| 06:00 | 55°F | 5 mi/h | 1014 hPa | 86% | 46% | 0% | 0 mm |
| 09:00 | 61°F | 6 mi/h | 1015 hPa | 75% | 33% | 0% | 0 mm |
| 12:00 | 66°F | 8 mi/h | 1016 hPa | 57% | 25% | 0% | 0 mm |
| 15:00 | 68°F | 7 mi/h | 1016 hPa | 51% | 23% | 0% | 0 mm |
| 18:00 | 68°F | 7 mi/h | 1016 hPa | 50% | 23% | 0% | 0 mm |
| 21:00 | 63°F | 6 mi/h | 1016 hPa | 57% | 19% | 0% | 0 mm |
Saturday, may 3
69°F51°F
6:0519:55
11:1801:46
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 57°F | 4 mi/h | 1016 hPa | 69% | 13% | 0% | 0 mm |
| 03:00 | 54°F | 4 mi/h | 1016 hPa | 75% | 13% | 0% | 0 mm |
| 06:00 | 52°F | 4 mi/h | 1016 hPa | 79% | 15% | 0% | 0 mm |
| 09:00 | 57°F | 6 mi/h | 1016 hPa | 66% | 15% | 0% | 0 mm |
| 12:00 | 66°F | 7 mi/h | 1015 hPa | 49% | 14% | 0% | 0 mm |
| 15:00 | 68°F | 4 mi/h | 1013 hPa | 45% | 17% | 0% | 0 mm |
| 18:00 | 68°F | 4 mi/h | 1012 hPa | 46% | 21% | 0% | 0 mm |
| 21:00 | 64°F | 4 mi/h | 1012 hPa | 54% | 22% | 0% | 0 mm |
Sunday, may 4
71°F53°F
6:0419:56
12:2602:22
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 57°F | 4 mi/h | 1011 hPa | 67% | 20% | 0% | 0 mm |
| 03:00 | 55°F | 4 mi/h | 1010 hPa | 74% | 20% | 0% | 0 mm |
| 06:00 | 54°F | 4 mi/h | 1011 hPa | 79% | 21% | 0% | 0 mm |
| 09:00 | 59°F | 5 mi/h | 1011 hPa | 69% | 26% | 0% | 0 mm |
| 12:00 | 68°F | 7 mi/h | 1010 hPa | 56% | 32% | 0% | 0 mm |
| 15:00 | 72°F | 4 mi/h | 1008 hPa | 52% | 33% | 0% | 0 mm |
| 18:00 | 70°F | 4 mi/h | 1008 hPa | 53% | 31% | 0% | 0 mm |
| 21:00 | 66°F | 3 mi/h | 1009 hPa | 60% | 31% | 0% | 0 mm |
Monday, may 5
73°F55°F
6:0319:57
13:3202:51
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 61°F | 3 mi/h | 1009 hPa | 71% | 31% | 0% | 0 mm |
| 03:00 | 57°F | 4 mi/h | 1009 hPa | 77% | 34% | 0% | 0 mm |
| 06:00 | 55°F | 5 mi/h | 1010 hPa | 80% | 39% | 0% | 0 mm |
| 09:00 | 61°F | 6 mi/h | 1011 hPa | 71% | 37% | 0% | 0 mm |
| 12:00 | 70°F | 7 mi/h | 1011 hPa | 59% | 33% | 0% | 0 mm |
| 15:00 | 70°F | 7 mi/h | 1010 hPa | 52% | 10% | 0% | 0 mm |
| 18:00 | 66°F | 9 mi/h | 1011 hPa | 63% | 0% | 0% | 0 mm |
| 21:00 | 59°F | 7 mi/h | 1012 hPa | 78% | 0% | 0% | 0 mm |
Tuesday, may 6
73°F51°F
6:0219:58
14:3403:15
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 54°F | 6 mi/h | 1013 hPa | 84% | 0% | 0% | 0 mm |
| 03:00 | 52°F | 6 mi/h | 1014 hPa | 88% | 0% | 0% | 0 mm |
| 06:00 | 52°F | 5 mi/h | 1015 hPa | 88% | 1% | 0% | 0 mm |
| 09:00 | 61°F | 6 mi/h | 1016 hPa | 71% | 0% | 0% | 0 mm |
| 12:00 | 70°F | 7 mi/h | 1016 hPa | 58% | 0% | 0% | 0 mm |
| 15:00 | 73°F | 7 mi/h | 1015 hPa | 51% | 0% | 0% | 0 mm |
| 18:00 | 72°F | 4 mi/h | 1015 hPa | 60% | 26% | 0% | 0 mm |
| 21:00 | 64°F | 2 mi/h | 1016 hPa | 71% | 22% | 0% | 0 mm |
Wednesday, may 7
79°F56°F
6:0119:59
15:3403:37
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 59°F | 3 mi/h | 1017 hPa | 76% | 8% | 0% | 0 mm |
| 03:00 | 57°F | 4 mi/h | 1017 hPa | 81% | 5% | 0% | 0 mm |
| 06:00 | 57°F | 4 mi/h | 1018 hPa | 83% | 2% | 0% | 0 mm |
| 09:00 | 66°F | 4 mi/h | 1018 hPa | 69% | 1% | 0% | 0 mm |
| 12:00 | 73°F | 6 mi/h | 1017 hPa | 53% | 13% | 0% | 0 mm |
| 15:00 | 79°F | 7 mi/h | 1015 hPa | 47% | 67% | 0% | 0 mm |
| 18:00 | 75°F | 7 mi/h | 1013 hPa | 60% | 97% | 0% | 0 mm |
| 21:00 | 68°F | 8 mi/h | 1014 hPa | 74% | 100% | 0% | 0 mm |
Thursday, may 8
82°F64°F
6:0020:00
16:3203:57
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 66°F | 9 mi/h | 1013 hPa | 72% | 100% | 0% | 0 mm |
| 03:00 | 64°F | 10 mi/h | 1013 hPa | 70% | 100% | 0% | 0 mm |
| 06:00 | 64°F | 11 mi/h | 1012 hPa | 73% | 100% | 0% | 0 mm |
| 09:00 | 66°F | 11 mi/h | 1012 hPa | 73% | 100% | 0% | 0 mm |
| 12:00 | 75°F | 14 mi/h | 1010 hPa | 57% | 74% | 0% | 0 mm |
| 15:00 | 81°F | 13 mi/h | 1009 hPa | 50% | 54% | 0% | 0 mm |
| 18:00 | 79°F | 11 mi/h | 1008 hPa | 60% | 21% | 0% | 0 mm |
| 21:00 | 72°F | 11 mi/h | 1008 hPa | 69% | 11% | 0% | 0 mm |
Friday, may 9
68°F53°F
5:5920:01
17:3104:16
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 68°F | 9 mi/h | 1009 hPa | 80% | 71% | 0% | 0 mm |
| 03:00 | 66°F | 9 mi/h | 1009 hPa | 86% | 63% | 0% | 0 mm |
| 06:00 | 64°F | 7 mi/h | 1009 hPa | 87% | 25% | 0% | 0 mm |
| 09:00 | 66°F | 6 mi/h | 1010 hPa | 86% | 72% | 17% | 0.1 mm |
| 12:00 | 64°F | 7 mi/h | 1011 hPa | 90% | 100% | 20% | 1.3 mm |
| 15:00 | 61°F | 12 mi/h | 1013 hPa | 93% | 100% | 17% | 0.2 mm |
| 18:00 | 57°F | 12 mi/h | 1015 hPa | 91% | 56% | 0% | 0 mm |
| 21:00 | 55°F | 7 mi/h | 1017 hPa | 92% | 78% | 0% | 0 mm |
