Weather in O'Fallon Missouri, United States. 15 days forecast
Current weather conditions
Sky / Temperature 48°F | Wind 7 mi/h | Atmospheric pressure1019 hPa | Humidity43% | Wind chill43°F | Dewpoint27°F |
Updated: 2/23/2025 at 13:54 (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, february 23
54°F23°F
6:4717:47
03:5912:52
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 14:00 | 54°F | 8 mi/h | 1018 hPa | 41% | 10% | 0% | 0 mm |
| 15:00 | 54°F | 8 mi/h | 1017 hPa | 42% | 10% | 0% | 0 mm |
| 16:00 | 54°F | 7 mi/h | 1017 hPa | 44% | 5% | 0% | 0 mm |
| 17:00 | 52°F | 6 mi/h | 1016 hPa | 48% | 5% | 0% | 0 mm |
| 18:00 | 46°F |  6 mi/h | 1017 hPa | 61% | 4% | 0% | 0 mm |
| 19:00 | 43°F | 6 mi/h | 1017 hPa | 68% | 3% | 0% | 0 mm |
| 21:00 | 41°F | 6 mi/h | 1017 hPa | 70% | 3% | 0% | 0 mm |
Tomorrow, february 24
60°F37°F
6:4517:48
04:4814:00
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 37°F | 7 mi/h | 1017 hPa | 75% | 6% | 0% | 0 mm |
| 03:00 | 37°F | 7 mi/h | 1014 hPa | 75% | 24% | 0% | 0 mm |
| 06:00 | 37°F | 6 mi/h | 1014 hPa | 77% | 27% | 0% | 0 mm |
| 09:00 | 45°F | 10 mi/h | 1014 hPa | 68% | 21% | 0% | 0 mm |
| 12:00 | 55°F | 10 mi/h | 1013 hPa | 55% | 47% | 0% | 0 mm |
| 15:00 | 61°F | 9 mi/h | 1010 hPa | 48% | 53% | 1% | 0 mm |
| 18:00 | 52°F |  7 mi/h | 1010 hPa | 64% | 31% | 0% | 0 mm |
| 21:00 | 45°F | 4 mi/h | 1011 hPa | 77% | 38% | 0% | 0 mm |
Tuesday, february 25
61°F37°F
6:4417:49
05:3015:13
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 41°F | 6 mi/h | 1011 hPa | 83% | 27% | 0% | 0 mm |
| 03:00 | 39°F | 6 mi/h | 1011 hPa | 86% | 26% | 0% | 0 mm |
| 06:00 | 37°F | 6 mi/h | 1013 hPa | 94% | 19% | 0% | 0 mm |
| 09:00 | 45°F | 4 mi/h | 1015 hPa | 76% | 23% | 0% | 0 mm |
| 12:00 | 57°F | 4 mi/h | 1014 hPa | 57% | 31% | 0% | 0 mm |
| 15:00 | 61°F | 4 mi/h | 1012 hPa | 47% | 34% | 0% | 0 mm |
| 18:00 | 55°F | 2 mi/h | 1012 hPa | 59% | 49% | 0% | 0 mm |
| 21:00 | 50°F | 4 mi/h | 1013 hPa | 72% | 54% | 0% | 0 mm |
Wednesday, february 26
58°F45°F
6:4317:50
06:0516:28
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 45°F | 5 mi/h | 1011 hPa | 84% | 59% | 0% | 0 mm |
| 03:00 | 45°F | 6 mi/h | 1011 hPa | 87% | 67% | 0% | 0 mm |
| 06:00 | 45°F | 6 mi/h | 1011 hPa | 90% | 75% | 4% | 0 mm |
| 09:00 | 52°F | 8 mi/h | 1011 hPa | 79% | 73% | 4% | 0 mm |
| 12:00 | 59°F | 10 mi/h | 1011 hPa | 67% | 71% | 4% | 0 mm |
| 15:00 | 55°F | 9 mi/h | 1011 hPa | 66% | 66% | 4% | 0 mm |
| 18:00 | 54°F |  9 mi/h | 1013 hPa | 66% | 61% | 33% | 0 mm |
| 21:00 | 48°F | 8 mi/h | 1014 hPa | 75% | 48% | 33% | 0 mm |
Thursday, february 27
48°F37°F
6:4117:51
06:3517:43
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 43°F | 8 mi/h | 1016 hPa | 84% | 35% | 0% | 0 mm |
| 03:00 | 39°F | 8 mi/h | 1016 hPa | 86% | 42% | 0% | 0 mm |
| 06:00 | 37°F | 8 mi/h | 1017 hPa | 89% | 49% | 0% | 0 mm |
| 09:00 | 43°F | 9 mi/h | 1019 hPa | 75% | 41% | 0% | 0 mm |
| 12:00 | 48°F | 10 mi/h | 1018 hPa | 61% | 32% | 0% | 0 mm |
| 15:00 | 48°F | 7 mi/h | 1016 hPa | 59% | 26% | 0% | 0 mm |
| 18:00 | 48°F | 4 mi/h | 1017 hPa | 58% | 19% | 0% | 0 mm |
| 21:00 | 43°F | 4 mi/h | 1019 hPa | 69% | 13% | 0% | 0 mm |
Friday, february 28
55°F34°F
6:4017:52
07:0318:58
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 37°F | 4 mi/h | 1019 hPa | 79% | 8% | 0% | 0 mm |
| 03:00 | 36°F | 5 mi/h | 1018 hPa | 82% | 11% | 0% | 0 mm |
| 06:00 | 34°F | 6 mi/h | 1017 hPa | 85% | 14% | 0% | 0 mm |
| 09:00 | 45°F | 7 mi/h | 1015 hPa | 68% | 22% | 0% | 0 mm |
| 12:00 | 54°F | 10 mi/h | 1009 hPa | 51% | 29% | 0% | 0 mm |
| 15:00 | 55°F | 9 mi/h | 1004 hPa | 51% | 42% | 0% | 0 mm |
| 18:00 | 55°F | 9 mi/h | 1005 hPa | 51% | 54% | 1% | 0 mm |
| 21:00 | 52°F | 9 mi/h | 1007 hPa | 60% | 50% | 0% | 0 mm |
Saturday, march 1
53°F40°F
6:3817:53
07:2920:13
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 46°F | 10 mi/h | 1009 hPa | 68% | 46% | 0% | 0 mm |
| 03:00 | 45°F | 10 mi/h | 1011 hPa | 72% | 44% | 0% | 0 mm |
| 06:00 | 41°F | 10 mi/h | 1014 hPa | 76% | 42% | 0% | 0 mm |
| 09:00 | 46°F | 11 mi/h | 1017 hPa | 63% | 36% | 0% | 0 mm |
| 12:00 | 54°F | 11 mi/h | 1018 hPa | 50% | 29% | 0% | 0 mm |
| 15:00 | 52°F | 9 mi/h | 1017 hPa | 52% | 35% | 0% | 0 mm |
| 18:00 | 50°F | 7 mi/h | 1019 hPa | 54% | 41% | 0% | 0 mm |
| 21:00 | 43°F | 5 mi/h | 1022 hPa | 65% | 39% | 0% | 0 mm |
Sunday, march 2
50°F32°F
6:3717:54
07:5521:29
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 37°F | 4 mi/h | 1024 hPa | 73% | 29% | 0% | 0 mm |
| 03:00 | 34°F |  4 mi/h | 1025 hPa | 78% | 22% | 0% | 0 mm |
| 06:00 | 32°F | 4 mi/h | 1027 hPa | 80% | 18% | 0% | 0 mm |
| 09:00 | 37°F |  5 mi/h | 1029 hPa | 63% | 15% | 0% | 0 mm |
| 12:00 | 46°F | 6 mi/h | 1028 hPa | 47% | 11% | 0% | 0 mm |
| 15:00 | 50°F |  7 mi/h | 1026 hPa | 44% | 17% | 0% | 0 mm |
| 18:00 | 46°F | 5 mi/h | 1026 hPa | 53% | 33% | 0% | 0 mm |
| 21:00 | 43°F |  6 mi/h | 1026 hPa | 64% | 38% | 0% | 0 mm |
Monday, march 3
47°F35°F
6:3617:56
08:2322:46
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 37°F | 6 mi/h | 1024 hPa | 71% | 38% | 0% | 0 mm |
| 03:00 | 36°F | 6 mi/h | 1023 hPa | 76% | 53% | 0% | 0 mm |
| 06:00 | 34°F | 6 mi/h | 1022 hPa | 77% | 53% | 0% | 0 mm |
| 09:00 | 41°F | 8 mi/h | 1020 hPa | 67% | 52% | 0% | 0 mm |
| 12:00 | 46°F | 10 mi/h | 1019 hPa | 59% | 51% | 0% | 0 mm |
| 15:00 | 48°F | 9 mi/h | 1016 hPa | 61% | 56% | 0% | 0 mm |
| 18:00 | 48°F | 7 mi/h | 1014 hPa | 64% | 61% | 0% | 0 mm |
| 21:00 | 45°F | 7 mi/h | 1015 hPa | 71% | 62% | 0% | 0 mm |
Tuesday, march 4
51°F41°F
6:3417:57
08:56----
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 43°F | 8 mi/h | 1013 hPa | 79% | 63% | 0% | 0 mm |
| 03:00 | 41°F | 8 mi/h | 1012 hPa | 83% | 69% | 17% | 0.1 mm |
| 06:00 | 41°F | 8 mi/h | 1012 hPa | 86% | 74% | 17% | 0.3 mm |
| 09:00 | 46°F | 9 mi/h | 1013 hPa | 78% | 77% | 17% | 0.3 mm |
| 12:00 | 50°F | 12 mi/h | 1010 hPa | 71% | 79% | 17% | 0.3 mm |
| 15:00 | 50°F | 11 mi/h | 1006 hPa | 71% | 75% | 17% | 0.4 mm |
| 18:00 | 50°F | 11 mi/h | 1004 hPa | 71% | 71% | 17% | 0.5 mm |
| 21:00 | 46°F | 6 mi/h | 1001 hPa | 76% | 67% | 17% | 0.6 mm |
Wednesday, march 5
45°F36°F
6:3317:58
09:3500:03
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 45°F | 11 mi/h | 997 hPa | 81% | 64% | 17% | 0.8 mm |
| 03:00 | 43°F | 12 mi/h | 996 hPa | 83% | 65% | 17% | 0.7 mm |
| 06:00 | 39°F | 14 mi/h | 1005 hPa | 85% | 66% | 17% | 0.5 mm |
| 09:00 | 43°F | 14 mi/h | 1013 hPa | 75% | 61% | 17% | 0.4 mm |
| 12:00 | 45°F | 16 mi/h | 1017 hPa | 67% | 57% | 17% | 0.3 mm |
| 15:00 | 43°F | 13 mi/h | 1020 hPa | 64% | 55% | 17% | 0.1 mm |
| 18:00 | 43°F | 11 mi/h | 1023 hPa | 62% | 53% | 0% | 0 mm |
| 21:00 | 37°F | 9 mi/h | 1027 hPa | 68% | 43% | 0% | 0 mm |
Thursday, march 6
45°F30°F
6:3117:59
10:2201:17
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 34°F | 8 mi/h | 1029 hPa | 75% | 32% | 0% | 0 mm |
| 03:00 | 32°F | 8 mi/h | 1029 hPa | 76% | 33% | 0% | 0 mm |
| 06:00 | 30°F | 7 mi/h | 1030 hPa | 78% | 35% | 0% | 0 mm |
| 09:00 | 34°F | 3 mi/h | 1030 hPa | 52% | 18% | 0% | 0 mm |
| 12:00 | 41°F | 5 mi/h | 1028 hPa | 38% | 65% | 0% | 0 mm |
| 15:00 | 45°F | 6 mi/h | 1025 hPa | 35% | 97% | 0% | 0 mm |
| 18:00 | 41°F | 7 mi/h | 1023 hPa | 51% | 100% | 0% | 0 mm |
| 21:00 | 39°F | 9 mi/h | 1023 hPa | 61% | 100% | 17% | 0.1 mm |
Friday, march 7
48°F34°F
6:3018:00
11:1902:24
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 36°F | 9 mi/h | 1022 hPa | 77% | 100% | 20% | 0.2 mm |
| 03:00 | 36°F | 10 mi/h | 1019 hPa | 87% | 100% | 0% | 0 mm |
| 06:00 | 36°F | 11 mi/h | 1017 hPa | 85% | 100% | 17% | 0.1 mm |
| 09:00 | 36°F | 11 mi/h | 1014 hPa | 92% | 100% | 70% | 3.5 mm |
| 12:00 | 41°F | 14 mi/h | 1009 hPa | 81% | 76% | 17% | 0.1 mm |
| 15:00 | 48°F | 7 mi/h | 1004 hPa | 77% | 100% | 0% | 0 mm |
| 18:00 | 48°F | 10 mi/h | 1002 hPa | 83% | 20% | 0% | 0 mm |
| 21:00 | 39°F | 17 mi/h | 1006 hPa | 87% | 100% | 17% | 0.1 mm |
Saturday, march 8
40°F24°F
6:2818:01
12:2203:22
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 30°F | 21 mi/h | 1016 hPa | 88% | 56% | 0% | 0 mm |
| 03:00 | 27°F | 15 mi/h | 1022 hPa | 84% | 94% | 0% | 0 mm |
| 06:00 | 23°F | 11 mi/h | 1026 hPa | 84% | 90% | 0% | 0 mm |
| 09:00 | 27°F | 9 mi/h | 1028 hPa | 69% | 78% | 0% | 0 mm |
| 12:00 | 36°F | 6 mi/h | 1026 hPa | 54% | 6% | 0% | 0 mm |
| 15:00 | 39°F | 4 mi/h | 1024 hPa | 46% | 5% | 0% | 0 mm |
| 18:00 | 36°F | 6 mi/h | 1022 hPa | 58% | 6% | 0% | 0 mm |
| 21:00 | 34°F | 9 mi/h | 1022 hPa | 69% | 57% | 0% | 0 mm |
Sunday, march 9
46°F35°F
6:2718:02
13:3004:09
| Hour | Sky / Temp. | Wind | |||||
|---|---|---|---|---|---|---|---|
| 00:00 | 34°F | 11 mi/h | 1020 hPa | 71% | 100% | 0% | 0 mm |
| 03:00 | 36°F | 12 mi/h | 1018 hPa | 74% | 100% | 0% | 0 mm |
| 06:00 | 36°F | 14 mi/h | 1014 hPa | 78% | 100% | 0% | 0 mm |
| 09:00 | 37°F | 16 mi/h | 1010 hPa | 87% | 100% | 70% | 1.1 mm |
| 12:00 | 39°F | 19 mi/h | 1004 hPa | 90% | 100% | 17% | 0.5 mm |
| 15:00 | 43°F | 17 mi/h | 999 hPa | 91% | 100% | 17% | 0.4 mm |
| 18:00 | 45°F | 17 mi/h | 994 hPa | 91% | 100% | 17% | 0.1 mm |
| 21:00 | 43°F | 17 mi/h | 995 hPa | 90% | 100% | 17% | 0.9 mm |
