Click on button above to view MS Watches/Warnings/Special Wx Statements.


Calhoun County, MS Weather and Climate Synopsis

To access other UK Agricultural Weather Center Pages use the pull-down menu below.
(Click image to zoom) or Click Here

36 Hr. Forecast Map
All Radar images NOAA/UKAWC
Satellite images from NOAA

Weather Summary Hourly Observations Nowcast Agricultural Weather Outlook
7 Day Forecast Medium & Long Range Outlook Almanac Historical Facts





US Weekly Rainfall Departure



US Weekly Temperature Departure
Also see:



A joint service of the UK Ag Weather Center and the National Weather Service. 

246 PM CDT Sun Jul 20 2025

...New DISCUSSION...

.DISCUSSION...
Issued at 235 PM CDT Sun Jul 20 2025

This afternoon through Saturday night:

In terms of the heat, the forecast confidence continues to be 
high in the details through mid week. Significant heat is now 
showing up more prominently in the guidance as the subtropical 
ridge strengthens over our region during what is climatologically 
the hottest time of the year. The thermal ridge will support 
anomalously warm low level temperatures (e.g., H850 T in the lower
20s deg C), and these will correspond with a greater chance for 
us to observe 100 deg F high temperatures, but if it's any 
consolation, record highs are not being threatened. Between now 
and Wednesday, each day is forecast to be a little hotter with 
peak heat stress expected Wednesday. In terms of warnings/ 
advisories, a heat advisory has been issued for the entire area 
for Monday with the exception of upper portions of the Delta 
region where an extreme heat warning is in effect, and in the HWO 
graphics, elevated/significant impacts are being message 
accordingly. 

Where the heat stress forecast gets less clear is later in the as
the week as westerlies over the northern CONUS get pulled 
clockwise around the east side of the ridge. This would lead to a
couple of changes, including the increase in convective rainfall 
chances, especially over southeast portions of the area where 
convective rainfall coverage could be considerable, and with
reducing heat stress by disrupting the ridge some. Having said 
this, we would not count on there being a big pattern change as it
still looks to remain hot and humid and expect some sort of heat 
related messaging to be required through the end of the forecast.

Another thing to monitor for could be the potential for a few 
strong/severe multicell storms as the easterly low/mid level flow 
around the ridge will likely increase and become more cyclonic 
late this week. While there is a similar signal to last week for a
disturbance to potentially gain at least some hybrid tropical 
characteristics over the northern gulf, the most effect we 
anticipate is perhaps some locally heavy rainfall up to the 
Highway 84 corrdor. /EC/
National Ag. Weather Outlook, International Ag. Weather Summary
Current Surface Map, [2nd Source TWC]
Click here for UKAWC Point Agricultural, Lawn & Garden Forecast/Outlook in case of corrupt tables.
Regional Hourly Observations For CALHOUN County
200 PM CDT SUN JUL 20 2025
GOLDN TRIANGLE MOSUNNY   91  77  63 SW8       30.08F HX 104           
IUKA           PTSUNNY   88  82  83 VRB7      30.07F HX 108           
LOUISVILLE     MOSUNNY   91  77  62 SW8       30.13F HX 105           
STARKVILLE     MOSUNNY   90  79  70 VRB5      30.06F HX 105           
TUPELO         MOSUNNY   93  74  53 SW10      30.06F HX 103

Current Temperatures, Dewpoint, RH, Wind, Regional Obs, Surface 4-Panel

Current Agricultural Weather Conditions in Mississippi
Based on observations at 200pm CDT, Sunday July 20, 2025

Across Mississippi...temperatures are near 93 degrees north, near 94 degrees central, and near 91 degrees south. Current sky conditions are mostly sunny north, mostly sunny central, and sunny south. In the north, relative humidity is near 53%, and the dew point is near 74 degrees. The heat index is near 103 degrees north. In the central part of the state, relative humidity is near 54%, and the dew point is near 75 degrees. The heat index is near 105 degrees central. In the south, relative humidity is near 57%, and the dew point is near 74 degrees. The heat index is near 100 degrees south. The livestock heat stress category is emergency north, emergency central, and danger south. Winds are from the southwest at 10 mph north, where conditions are favorable for spraying. Winds are from the west at 10 mph central, where conditions are favorable for spraying. Winds are from the southwest at 12 mph south, where conditions are favorable for spraying. Based on current available observations, the highest temperature is 94 degrees at Pinebelt, and Jackson International Airport. The lowest temperature is 90 degrees at Meridian Naval Air Station.

Current NOWCAST not available:
Nowcasts are not issued routinely during fair weather. Only when
precipitation or other significant weather is occuring in this county will these
forecasts be issued. Currently, there is no short term forecast in effect.

US Radar, All NWS Radars (In near-real time), Current Livestock Heat Stress Index (LSI), Current Wind Chill Map
Hazardous Weather Outlook For CALHOUN County
Hazardous report currently not available
 NWS Severe Weather Map , Convective Outlook
7-Day Forecast For CALHOUN County, MS
147 PM CDT Sun Jul 20 2025


HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT MONDAY

THIS AFTERNOON
Sunny with a slight chance of showers and thunderstorms. Near steady temperature in the lower 90s. Southwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 108.

TONIGHT
Mostly clear. Lows in the mid 70s. Southwest winds around 5 mph in the evening, becoming light and variable.

MONDAY
Sunny with highs in the mid 90s. West winds around 5 mph. Heat index values up to 110.

MONDAY NIGHT
Mostly clear. Lows in the mid 70s. Light and variable winds.

TUESDAY
Sunny. Highs in the upper 90s. Light and variable winds, becoming northwest around 5 mph in the afternoon. Heat index values up to 109.

TUESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s.

WEDNESDAY
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Chance of rain 20 percent. Heat index values up to 110.

WEDNESDAY NIGHT
Partly cloudy. Lows in the mid 70s.

THURSDAY
Sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 30 percent. Heat index values up to 105.

THURSDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s.

FRIDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30 percent.

FRIDAY NIGHT
Partly cloudy. Lows in the lower 70s.

SATURDAY
Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent.

12-48 Hr Surface Forecast Maps, TWC 4-Panel Surface Forecast, Fire Danger, Day 1 Precip, Day 2 Precip, Days 1-5 Precip, Severe Weather Pot.-Day 1, Day 2

Medium & Long Range Outlook For Mississippi 
                          MISSISSIPPI                                                                     
                 ---------------------------------------------
                 6 TO 10 DAY  8 TO 14 DAY   30 DAY    90 DAY 
                   JUL 25-29 JUL 27-AUG 2    JUN       JUN-AUG                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above                                            
 Precipitation:      Above       Normal                                            

....  Medium and long range outlooks provided by NCEP/K. Thomas Priddy
5 Day Rainfall Forecast, 6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook
Almanac Information
Historical Weather And Climate Facts For Today

////////////////////////
JULY 20TH...HISTORIC WEATHER EVENTS
...1930...
The temperature at Washington D.C. soared to an all-time record of 106
degrees. The next day Millsboro reached 110 degrees to set a record for the
state of Delaware. July 1930 was one of the hottest and driest summers in
the U.S., particularly in the Missouri Valley where severe drought
conditions developed. Toward the end of the month state records were set
for Kentucky with 114 degrees, and Mississippi with 115 degrees. (David
Ludlum)
...1934...
The temperature at Keokuk IA soared to 118 degrees to establish a state
record. (The Weather Channel)
...1953...
Twenty-two inches of hail reportedly fell northeast of Dickinson ND. (The
Weather Channel)
...1986...
The temperature at Charleston SC hit 104 degrees for the second day in a
row to tie their all-time record high. (The Weather Channel)
...1987...
Thunderstorms produced severe weather across Minnesota, Wisconsin and
Michigan. Thunderstorms produced wind gusts to 87 mph at Mosinee WI, and
strong thunderstorm winds capsized twenty-six boats on Grand Traverse Bay
drowning two women. Thunderstorms produced nine inches of rain at Shakopee
MN, with 7.83 inches reported in six hours at Chaska MN. Thunderstorms in
north central Nebraska produced hail as large as golf balls in southwestern
Cherry County, which accumulated to a depth of 12 inches. (The National
Weather Summary) (Storm Data)
...1988...
The temperature at Redding CA soared to an all-time record high of 118
degrees. Showers and thunderstorms produced much needed rains from New
England to southern Texas. Salem IN was deluged with 7.2 inches of rain
resulting in flash flooding. (The National Weather Summary)
...1989...
Showers and thunderstorms in the Middle Atlantic Coast Region soaked
Wilmington DE with 2.28 inches of rain, pushing their total for the period
May through July past the previous record of 22.43 inches. Heavy rain over
that three month period virtually wiped out a 16.82 inch deficit which had
been building since drought conditions began in 1985. Thunderstorms in
central Indiana deluged Lebanon with 6.50 inches of rain in twelve hours,
and thunderstorms over Florida produced wind gusts to 84 mph at Flagler
Beach. (The National Weather Summary) (Storm Data)

Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky