Sullivan County, MO Weather Forecast
County weather hub
Showers And Thunderstorms Likely
Compare major city weather across Sullivan County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms before 9pm, then showers and thunderstorms likely between 9pm and 10pm, then showers and thunderstorms likely between 10pm and 1am, then showers and thunderstorms likely between 1am and 3am, then a chance of showers and thunderstorms between 3am and 4am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59. North wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Sullivan County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Sullivan County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 13 to Oct 20, 2026
- Latest sync
- Oct 13, 2026 8:42 PM CDT
- Forecast office
- EAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Sullivan County
Tuesday looks like the warmest upcoming period in Sullivan County at 74 degrees F.
Friday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Friday at about 13 to 22 mph NNW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 8:42 PM CDT
- Coverage
- 8 days
- Time zone
- America/Chicago
- Forecast office
- EAX
- Radar station
- KDMX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 5pm, then a slight chance of showers and thunderstorms. Cloudy, with a high near 67. Northeast wind around 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 11pm, then showers and thunderstorms. Cloudy, with a low around 59. East northeast wind 5 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms. Cloudy, with a high near 70. South southeast wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Showers and thunderstorms before 7pm. Mostly cloudy, with a low around 45. North northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 55.
Areas of frost after 4am. Mostly clear, with a low around 34.
Areas of frost before 8am. Sunny, with a high near 60.
Mostly clear, with a low around 41.
Mostly sunny, with a high near 66.
Mostly cloudy, with a low around 48.
Partly sunny, with a high near 69.
Partly cloudy, with a low around 51.
Mostly sunny, with a high near 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Oct 13
|
Showers And Thunderstorms Likely
|
59°F |
7 mph
N
|
|
Wednesday
Oct 14
|
Chance Showers And Thunderstorms
|
67°F |
10 mph
NE
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms
|
59°F |
5 to 9 mph
ENE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
70°F |
6 to 13 mph
SSE
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms then Mostly Cloudy
|
45°F |
15 to 20 mph
NNW
|
|
Friday
Oct 16
|
Mostly Sunny
|
55°F |
13 to 22 mph
NNW
|
|
Friday Night
Oct 16
|
Mostly Clear then Areas Of Frost
|
34°F |
0 to 10 mph
N
|
|
Saturday
Oct 17
|
Areas Of Frost then Sunny
|
60°F |
0 to 8 mph
SSW
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
41°F |
3 to 8 mph
S
|
|
Sunday
Oct 18
|
Mostly Sunny
|
66°F |
8 to 14 mph
SSW
|
|
Sunday Night
Oct 18
|
Mostly Cloudy
|
48°F |
5 to 9 mph
S
|
|
Monday
Oct 19
|
Partly Sunny
|
69°F |
3 to 7 mph
S
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
51°F |
3 mph
SSE
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
74°F |
1 to 9 mph
SSE
|
Major City Forecasts
Live forecast snapshots for major cities across Sullivan County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Sullivan County.
Largest mapped city population in this region: 1,764.
